* putting latest MDB2 into SVN

* adding MDB2 drivers for mssql, mysql, mysqli, pgsql, sqlite

6 files changed, 3356 insertions, 0 deletions

diff --git a/program/lib/MDB2/Driver/Reverse/Common.php b/program/lib/MDB2/Driver/Reverse/Common.php
new file mode 100644
index 000000000..43a2f251b
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/Common.php
@@ -0,0 +1,511 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: Common.php,v 1.41 2007/09/09 13:47:36 quipo Exp $
+//
+
+/**
+ * @package MDB2
+ * @category Database
+ */
+
+/**
+ * These are constants for the tableInfo-function
+ * they are bitwised or'ed. so if there are more constants to be defined
+ * in the future, adjust MDB2_TABLEINFO_FULL accordingly
+ */
+
+define('MDB2_TABLEINFO_ORDER',      1);
+define('MDB2_TABLEINFO_ORDERTABLE', 2);
+define('MDB2_TABLEINFO_FULL',       3);
+
+/**
+ * Base class for the schema reverse engineering module that is extended by each MDB2 driver
+ *
+ * To load this module in the MDB2 object:
+ * $mdb->loadModule('Reverse');
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Reverse_Common extends MDB2_Module_Common
+{
+    // {{{ splitTableSchema()
+
+    /**
+     * Split the "[owner|schema].table" notation into an array
+     * @access private
+     */
+    function splitTableSchema($table)
+    {
+        $ret = array();
+        if (strpos($table, '.') !== false) {
+            return explode('.', $table);
+        }
+        return array(null, $table);
+    }
+
+    // }}}
+    // {{{ getTableFieldDefinition()
+
+    /**
+     * Get the structure of a field into an array
+     *
+     * @param string    $table     name of table that should be used in method
+     * @param string    $field     name of field that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure.
+     *          The returned array contains an array for each field definition,
+     *          with all or some of these indices, depending on the field data type:
+     *          [notnull] [nativetype] [length] [fixed] [default] [type] [mdb2type]
+     * @access public
+     */
+    function getTableFieldDefinition($table, $field)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+    }
+
+    // }}}
+    // {{{ getTableIndexDefinition()
+
+    /**
+     * Get the structure of an index into an array
+     *
+     * @param string    $table      name of table that should be used in method
+     * @param string    $index      name of index that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     *          The returned array has this structure:
+     *          </pre>
+     *          array (
+     *              [fields] => array (
+     *                  [field1name] => array() // one entry per each field covered
+     *                  [field2name] => array() // by the index
+     *                  [field3name] => array(
+     *                      [sorting] => ascending
+     *                  )
+     *              )
+     *          );
+     *          </pre>
+     * @access public
+     */
+    function getTableIndexDefinition($table, $index)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+    }
+
+    // }}}
+    // {{{ getTableConstraintDefinition()
+
+    /**
+     * Get the structure of an constraints into an array
+     *
+     * @param string    $table      name of table that should be used in method
+     * @param string    $index      name of index that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     *          The returned array has this structure:
+     *          <pre>
+     *          array (
+     *              [primary] => 0
+     *              [unique]  => 0
+     *              [foreign] => 1
+     *              [check]   => 0
+     *              [fields] => array (
+     *                  [field1name] => array() // one entry per each field covered
+     *                  [field2name] => array() // by the index
+     *                  [field3name] => array(
+     *                      [sorting]  => ascending
+     *                      [position] => 3
+     *                  )
+     *              )
+     *              [references] => array(
+     *                  [table] => name
+     *                  [fields] => array(
+     *                      [field1name] => array(  //one entry per each referenced field
+     *                           [position] => 1
+     *                      )
+     *                  )
+     *              )
+     *              [deferrable] => 0
+     *              [initiallydeferred] => 0
+     *              [onupdate] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
+     *              [ondelete] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
+     *              [match] => SIMPLE|PARTIAL|FULL
+     *          );
+     *          </pre>
+     * @access public
+     */
+    function getTableConstraintDefinition($table, $index)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+    }
+
+    // }}}
+    // {{{ getSequenceDefinition()
+
+    /**
+     * Get the structure of a sequence into an array
+     *
+     * @param string    $sequence   name of sequence that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     *          The returned array has this structure:
+     *          <pre>
+     *          array (
+     *              [start] => n
+     *          );
+     *          </pre>
+     * @access public
+     */
+    function getSequenceDefinition($sequence)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $start = $db->currId($sequence);
+        if (PEAR::isError($start)) {
+            return $start;
+        }
+        if ($db->supports('current_id')) {
+            $start++;
+        } else {
+            $db->warnings[] = 'database does not support getting current
+                sequence value, the sequence value was incremented';
+        }
+        $definition = array();
+        if ($start != 1) {
+            $definition = array('start' => $start);
+        }
+        return $definition;
+    }
+
+    // }}}
+    // {{{ getTriggerDefinition()
+
+    /**
+     * Get the structure of a trigger into an array
+     *
+     * EXPERIMENTAL
+     *
+     * WARNING: this function is experimental and may change the returned value 
+     * at any time until labelled as non-experimental
+     *
+     * @param string    $trigger    name of trigger that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     *          The returned array has this structure:
+     *          <pre>
+     *          array (
+     *              [trigger_name]    => 'trigger name',
+     *              [table_name]      => 'table name',
+     *              [trigger_body]    => 'trigger body definition',
+     *              [trigger_type]    => 'BEFORE' | 'AFTER',
+     *              [trigger_event]   => 'INSERT' | 'UPDATE' | 'DELETE'
+     *                  //or comma separated list of multiple events, when supported
+     *              [trigger_enabled] => true|false
+     *              [trigger_comment] => 'trigger comment',
+     *          );
+     *          </pre>
+     *          The oci8 driver also returns a [when_clause] index.
+     * @access public
+     */
+    function getTriggerDefinition($trigger)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * The format of the resulting array depends on which <var>$mode</var>
+     * you select.  The sample output below is based on this query:
+     * <pre>
+     *    SELECT tblFoo.fldID, tblFoo.fldPhone, tblBar.fldId
+     *    FROM tblFoo
+     *    JOIN tblBar ON tblFoo.fldId = tblBar.fldId
+     * </pre>
+     *
+     * <ul>
+     * <li>
+     *
+     * <kbd>null</kbd> (default)
+     *   <pre>
+     *   [0] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   [1] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldPhone
+     *       [type] => string
+     *       [len] => 20
+     *       [flags] =>
+     *   )
+     *   [2] => Array (
+     *       [table] => tblBar
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>MDB2_TABLEINFO_ORDER</kbd>
+     *
+     *   <p>In addition to the information found in the default output,
+     *   a notation of the number of columns is provided by the
+     *   <samp>num_fields</samp> element while the <samp>order</samp>
+     *   element provides an array with the column names as the keys and
+     *   their location index number (corresponding to the keys in the
+     *   the default output) as the values.</p>
+     *
+     *   <p>If a result set has identical field names, the last one is
+     *   used.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [order] => Array (
+     *       [fldId] => 2
+     *       [fldTrans] => 1
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>MDB2_TABLEINFO_ORDERTABLE</kbd>
+     *
+     *   <p>Similar to <kbd>MDB2_TABLEINFO_ORDER</kbd> but adds more
+     *   dimensions to the array in which the table names are keys and
+     *   the field names are sub-keys.  This is helpful for queries that
+     *   join tables which have identical field names.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [ordertable] => Array (
+     *       [tblFoo] => Array (
+     *           [fldId] => 0
+     *           [fldPhone] => 1
+     *       )
+     *       [tblBar] => Array (
+     *           [fldId] => 2
+     *       )
+     *   )
+     *   </pre>
+     *
+     * </li>
+     * </ul>
+     *
+     * The <samp>flags</samp> element contains a space separated list
+     * of extra information about the field.  This data is inconsistent
+     * between DBMS's due to the way each DBMS works.
+     *   + <samp>primary_key</samp>
+     *   + <samp>unique_key</samp>
+     *   + <samp>multiple_key</samp>
+     *   + <samp>not_null</samp>
+     *
+     * Most DBMS's only provide the <samp>table</samp> and <samp>flags</samp>
+     * elements if <var>$result</var> is a table name.  The following DBMS's
+     * provide full information from queries:
+     *   + fbsql
+     *   + mysql
+     *
+     * If the 'portability' option has <samp>MDB2_PORTABILITY_FIX_CASE</samp>
+     * turned on, the names of tables and fields will be lower or upper cased.
+     *
+     * @param object|string  $result  MDB2_result object from a query or a
+     *                                string containing the name of a table.
+     *                                While this also accepts a query result
+     *                                resource identifier, this behavior is
+     *                                deprecated.
+     * @param int  $mode   either unused or one of the tableInfo modes:
+     *                     <kbd>MDB2_TABLEINFO_ORDERTABLE</kbd>,
+     *                     <kbd>MDB2_TABLEINFO_ORDER</kbd> or
+     *                     <kbd>MDB2_TABLEINFO_FULL</kbd> (which does both).
+     *                     These are bitwise, so the first two can be
+     *                     combined using <kbd>|</kbd>.
+     *
+     * @return array  an associative array with the information requested.
+     *                 A MDB2_Error object on failure.
+     *
+     * @see MDB2_Driver_Common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (!is_string($result)) {
+            return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+                'method not implemented', __FUNCTION__);
+        }
+
+        $db->loadModule('Manager', null, true);
+        $fields = $db->manager->listTableFields($result);
+        if (PEAR::isError($fields)) {
+            return $fields;
+        }
+
+        $flags = array();
+
+        $idxname_format = $db->getOption('idxname_format');
+        $db->setOption('idxname_format', '%s');
+
+        $indexes = $db->manager->listTableIndexes($result);
+        if (PEAR::isError($indexes)) {
+            $db->setOption('idxname_format', $idxname_format);
+            return $indexes;
+        }
+
+        foreach ($indexes as $index) {
+            $definition = $this->getTableIndexDefinition($result, $index);
+            if (PEAR::isError($definition)) {
+                $db->setOption('idxname_format', $idxname_format);
+                return $definition;
+            }
+            if (count($definition['fields']) > 1) {
+                foreach ($definition['fields'] as $field => $sort) {
+                    $flags[$field] = 'multiple_key';
+                }
+            }
+        }
+
+        $constraints = $db->manager->listTableConstraints($result);
+        if (PEAR::isError($constraints)) {
+            return $constraints;
+        }
+
+        foreach ($constraints as $constraint) {
+            $definition = $this->getTableConstraintDefinition($result, $constraint);
+            if (PEAR::isError($definition)) {
+                $db->setOption('idxname_format', $idxname_format);
+                return $definition;
+            }
+            $flag = !empty($definition['primary'])
+                ? 'primary_key' : (!empty($definition['unique'])
+                    ? 'unique_key' : false);
+            if ($flag) {
+                foreach ($definition['fields'] as $field => $sort) {
+                    if (empty($flags[$field]) || $flags[$field] != 'primary_key') {
+                        $flags[$field] = $flag;
+                    }
+                }
+            }
+        }
+
+        if ($mode) {
+            $res['num_fields'] = count($fields);
+        }
+
+        foreach ($fields as $i => $field) {
+            $definition = $this->getTableFieldDefinition($result, $field);
+            if (PEAR::isError($definition)) {
+                $db->setOption('idxname_format', $idxname_format);
+                return $definition;
+            }
+            $res[$i] = $definition[0];
+            $res[$i]['name'] = $field;
+            $res[$i]['table'] = $result;
+            $res[$i]['type'] = preg_replace('/^([a-z]+).*$/i', '\\1', trim($definition[0]['nativetype']));
+            // 'primary_key', 'unique_key', 'multiple_key'
+            $res[$i]['flags'] = empty($flags[$field]) ? '' : $flags[$field];
+            // not_null', 'unsigned', 'auto_increment', 'default_[rawencodedvalue]'
+            if (!empty($res[$i]['notnull'])) {
+                $res[$i]['flags'].= ' not_null';
+            }
+            if (!empty($res[$i]['unsigned'])) {
+                $res[$i]['flags'].= ' unsigned';
+            }
+            if (!empty($res[$i]['auto_increment'])) {
+                $res[$i]['flags'].= ' autoincrement';
+            }
+            if (!empty($res[$i]['default'])) {
+                $res[$i]['flags'].= ' default_'.rawurlencode($res[$i]['default']);
+            }
+
+            if ($mode & MDB2_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        $db->setOption('idxname_format', $idxname_format);
+        return $res;
+    }
+}
+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Reverse/mssql.php b/program/lib/MDB2/Driver/Reverse/mssql.php
new file mode 100644
index 000000000..a27c95d57
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/mssql.php
@@ -0,0 +1,653 @@
+<?php

+// +----------------------------------------------------------------------+

+// | PHP versions 4 and 5                                                 |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |

+// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann, Lorenzo Alberton     |

+// | All rights reserved.                                                 |

+// +----------------------------------------------------------------------+

+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |

+// | API as well as database abstraction for PHP applications.            |

+// | This LICENSE is in the BSD license style.                            |

+// |                                                                      |

+// | Redistribution and use in source and binary forms, with or without   |

+// | modification, are permitted provided that the following conditions   |

+// | are met:                                                             |

+// |                                                                      |

+// | Redistributions of source code must retain the above copyright       |

+// | notice, this list of conditions and the following disclaimer.        |

+// |                                                                      |

+// | Redistributions in binary form must reproduce the above copyright    |

+// | notice, this list of conditions and the following disclaimer in the  |

+// | documentation and/or other materials provided with the distribution. |

+// |                                                                      |

+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |

+// | Lukas Smith nor the names of his contributors may be used to endorse |

+// | or promote products derived from this software without specific prior|

+// | written permission.                                                  |

+// |                                                                      |

+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |

+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |

+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |

+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |

+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |

+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |

+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|

+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |

+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |

+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|

+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |

+// | POSSIBILITY OF SUCH DAMAGE.                                          |

+// +----------------------------------------------------------------------+

+// | Authors: Lukas Smith <smith@pooteeweet.org>                          |

+// |          Lorenzo Alberton <l.alberton@quipo.it>                      |

+// +----------------------------------------------------------------------+

+//

+// $Id: mssql.php,v 1.48 2007/11/25 13:38:29 quipo Exp $

+//

+

+require_once 'MDB2/Driver/Reverse/Common.php';

+

+/**

+ * MDB2 MSSQL driver for the schema reverse engineering module

+ *

+ * @package MDB2

+ * @category Database

+ * @author  Lukas Smith <smith@dybnet.de>

+ * @author  Lorenzo Alberton <l.alberton@quipo.it>

+ */

+class MDB2_Driver_Reverse_mssql extends MDB2_Driver_Reverse_Common

+{

+    // {{{ getTableFieldDefinition()

+

+    /**

+     * Get the structure of a field into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $field_name name of field that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableFieldDefinition($table_name, $field_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $result = $db->loadModule('Datatype', null, true);

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $fldname = $db->quoteIdentifier($field_name, true);

+

+        $query = "SELECT t.table_name,

+                         c.column_name 'name',

+                         c.data_type 'type',

+                         CASE c.is_nullable WHEN 'YES' THEN 1 ELSE 0 END AS 'is_nullable',

+                         c.column_default,

+                         c.character_maximum_length 'length',

+                         c.numeric_precision,

+                         c.numeric_scale,

+                         c.character_set_name,

+                         c.collation_name

+                    FROM INFORMATION_SCHEMA.TABLES t,

+                         INFORMATION_SCHEMA.COLUMNS c

+                   WHERE t.table_name = c.table_name

+                     AND t.table_name = '$table'

+                     AND c.column_name = '$fldname'";

+        if (!empty($schema)) {

+            $query .= " AND t.table_schema = '" .$db->quoteIdentifier($schema, true) ."'";

+        }

+        $query .= ' ORDER BY t.table_name';

+        $column = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($column)) {

+            return $column;

+        }

+        if (empty($column)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table column', __FUNCTION__);

+        }

+

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            if ($db->options['field_case'] == CASE_LOWER) {

+                $column['name'] = strtolower($column['name']);

+            } else {

+                $column['name'] = strtoupper($column['name']);

+            }

+        } else {

+            $column = array_change_key_case($column, $db->options['field_case']);

+        }

+        $mapped_datatype = $db->datatype->mapNativeDatatype($column);

+        if (PEAR::isError($mapped_datatype)) {

+            return $mapped_datatype;

+        }

+        list($types, $length, $unsigned, $fixed) = $mapped_datatype;

+        $notnull = true;

+        if ($column['is_nullable']) {

+            $notnull = false;

+        }

+        $default = false;

+        if (array_key_exists('column_default', $column)) {

+            $default = $column['column_default'];

+            if (is_null($default) && $notnull) {

+                $default = '';

+            } elseif (strlen($default) > 4

+                   && substr($default, 0, 1) == '('

+                   &&  substr($default, -1, 1) == ')'

+            ) {

+                //mssql wraps the default value in parentheses: "((1234))", "(NULL)"

+                $default = trim($default, '()');

+                if ($default == 'NULL') {

+                    $default = null;

+                }

+            }

+        }

+        $definition[0] = array(

+            'notnull' => $notnull,

+            'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type'])

+        );

+        if (!is_null($length)) {

+            $definition[0]['length'] = $length;

+        }

+        if (!is_null($unsigned)) {

+            $definition[0]['unsigned'] = $unsigned;

+        }

+        if (!is_null($fixed)) {

+            $definition[0]['fixed'] = $fixed;

+        }

+        if ($default !== false) {

+            $definition[0]['default'] = $default;

+        }

+        foreach ($types as $key => $type) {

+            $definition[$key] = $definition[0];

+            if ($type == 'clob' || $type == 'blob') {

+                unset($definition[$key]['default']);

+            }

+            $definition[$key]['type'] = $type;

+            $definition[$key]['mdb2type'] = $type;

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableIndexDefinition()

+

+    /**

+     * Get the structure of an index into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $index_name name of index that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableIndexDefinition($table_name, $index_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        //$idxname = $db->quoteIdentifier($index_name, true);

+

+        $query = "SELECT OBJECT_NAME(i.id) tablename,

+                         i.name indexname,

+                         c.name field_name,

+                         CASE INDEXKEY_PROPERTY(i.id, i.indid, ik.keyno, 'IsDescending')

+                           WHEN 1 THEN 'DESC' ELSE 'ASC'

+                         END 'collation',

+                         ik.keyno 'position'

+                    FROM sysindexes i

+                    JOIN sysindexkeys ik ON ik.id = i.id AND ik.indid = i.indid

+                    JOIN syscolumns c ON c.id = ik.id AND c.colid = ik.colid

+                   WHERE OBJECT_NAME(i.id) = '$table'

+                     AND i.name = '%s'

+                     AND NOT EXISTS (

+                            SELECT *

+                              FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE k

+                             WHERE k.table_name = OBJECT_NAME(i.id)

+                               AND k.constraint_name = i.name";

+        if (!empty($schema)) {

+            $query .= " AND k.table_schema = '" .$db->quoteIdentifier($schema, true) ."'";

+        }

+        $query .= ')

+                ORDER BY tablename, indexname, ik.keyno';

+

+        $index_name_mdb2 = $db->getIndexName($index_name);

+        $result = $db->queryRow(sprintf($query, $index_name_mdb2));

+        if (!PEAR::isError($result) && !is_null($result)) {

+            // apply 'idxname_format' only if the query succeeded, otherwise

+            // fallback to the given $index_name, without transformation

+            $index_name = $index_name_mdb2;

+        }

+        $result = $db->query(sprintf($query, $index_name));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        $definition = array();

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $column_name = $row['field_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $column_name = strtolower($column_name);

+                } else {

+                    $column_name = strtoupper($column_name);

+                }

+            }

+            $definition['fields'][$column_name] = array(

+                'position' => (int)$row['position'],

+            );

+            if (!empty($row['collation'])) {

+                $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'ASC'

+                    ? 'ascending' : 'descending');

+            }

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table index', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableConstraintDefinition()

+

+    /**

+     * Get the structure of a constraint into an array

+     *

+     * @param string $table_name      name of table that should be used in method

+     * @param string $constraint_name name of constraint that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableConstraintDefinition($table_name, $constraint_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SELECT k.table_name,

+                         k.column_name field_name,

+                         CASE c.constraint_type WHEN 'PRIMARY KEY' THEN 1 ELSE 0 END 'primary',

+                         CASE c.constraint_type WHEN 'UNIQUE' THEN 1 ELSE 0 END 'unique',

+                         CASE c.constraint_type WHEN 'FOREIGN KEY' THEN 1 ELSE 0 END 'foreign',

+                         CASE c.constraint_type WHEN 'CHECK' THEN 1 ELSE 0 END 'check',

+                         CASE c.is_deferrable WHEN 'NO' THEN 0 ELSE 1 END 'deferrable',

+                         CASE c.initially_deferred WHEN 'NO' THEN 0 ELSE 1 END 'initiallydeferred',

+                         rc.match_option 'match',

+                		 rc.update_rule 'onupdate',

+                         rc.delete_rule 'ondelete',

+                         kcu.table_name 'references_table',

+                         kcu.column_name 'references_field',

+                         k.ordinal_position 'field_position'

+                    FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE k

+                    LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS c

+                      ON k.table_name = c.table_name

+                     AND k.table_schema = c.table_schema

+                     AND k.table_catalog = c.table_catalog

+                     AND k.constraint_catalog = c.constraint_catalog

+                     AND k.constraint_name = c.constraint_name

+               LEFT JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc

+                      ON rc.constraint_schema = c.constraint_schema

+                     AND rc.constraint_catalog = c.constraint_catalog

+                     AND rc.constraint_name = c.constraint_name

+               LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE kcu

+                      ON rc.unique_constraint_schema = kcu.constraint_schema

+                     AND rc.unique_constraint_catalog = kcu.constraint_catalog

+                     AND rc.unique_constraint_name = kcu.constraint_name

+					 AND k.ordinal_position = kcu.ordinal_position

+                   WHERE k.constraint_catalog = DB_NAME()

+                     AND k.table_name = '$table'

+                     AND k.constraint_name = '%s'";

+        if (!empty($schema)) {

+            $query .= " AND k.table_schema = '" .$db->quoteIdentifier($schema, true) ."'";

+        }

+        $query .= ' ORDER BY k.constraint_name,

+                             k.ordinal_position';

+

+        $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+        $result = $db->queryRow(sprintf($query, $constraint_name_mdb2));

+        if (!PEAR::isError($result) && !is_null($result)) {

+            // apply 'idxname_format' only if the query succeeded, otherwise

+            // fallback to the given $index_name, without transformation

+            $constraint_name = $constraint_name_mdb2;

+        }

+        $result = $db->query(sprintf($query, $constraint_name));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        $definition = array(

+            'fields' => array()

+        );

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $row = array_change_key_case($row, CASE_LOWER);

+            $column_name = $row['field_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $column_name = strtolower($column_name);

+                } else {

+                    $column_name = strtoupper($column_name);

+                }

+            }

+            $definition['fields'][$column_name] = array(

+                'position' => (int)$row['field_position']

+            );

+            if ($row['foreign']) {

+                $ref_column_name = $row['references_field'];

+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                    if ($db->options['field_case'] == CASE_LOWER) {

+                        $ref_column_name = strtolower($ref_column_name);

+                    } else {

+                        $ref_column_name = strtoupper($ref_column_name);

+                    }

+                }

+                $definition['references']['table'] = $row['references_table'];

+                $definition['references']['fields'][$ref_column_name] = array(

+                    'position' => (int)$row['field_position']

+                );

+            }

+            //collation?!?

+            /*

+            if (!empty($row['collation'])) {

+                $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'ASC'

+                    ? 'ascending' : 'descending');

+            }

+            */

+            $lastrow = $row;

+            // otherwise $row is no longer usable on exit from loop

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+

+        $definition['primary'] = (boolean)$lastrow['primary'];

+        $definition['unique']  = (boolean)$lastrow['unique'];

+        $definition['foreign'] = (boolean)$lastrow['foreign'];

+        $definition['check']   = (boolean)$lastrow['check'];

+        $definition['deferrable'] = (boolean)$lastrow['deferrable'];

+        $definition['initiallydeferred'] = (boolean)$lastrow['initiallydeferred'];

+        $definition['onupdate'] = $lastrow['onupdate'];

+        $definition['ondelete'] = $lastrow['ondelete'];

+        $definition['match']    = $lastrow['match'];

+

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTriggerDefinition()

+

+    /**

+     * Get the structure of a trigger into an array

+     *

+     * EXPERIMENTAL

+     *

+     * WARNING: this function is experimental and may change the returned value

+     * at any time until labelled as non-experimental

+     *

+     * @param string    $trigger    name of trigger that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTriggerDefinition($trigger)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $query = "SELECT sys1.name trigger_name,

+                         sys2.name table_name,

+                         c.text trigger_body,

+                         c.encrypted is_encripted,

+                         CASE

+                           WHEN OBJECTPROPERTY(sys1.id, 'ExecIsTriggerDisabled') = 1

+                           THEN 0 ELSE 1

+                         END trigger_enabled,

+                         CASE

+                           WHEN OBJECTPROPERTY(sys1.id, 'ExecIsInsertTrigger') = 1

+                           THEN 'INSERT'

+                           WHEN OBJECTPROPERTY(sys1.id, 'ExecIsUpdateTrigger') = 1

+                           THEN 'UPDATE'

+                           WHEN OBJECTPROPERTY(sys1.id, 'ExecIsDeleteTrigger') = 1

+                           THEN 'DELETE'

+                         END trigger_event,

+                         CASE WHEN OBJECTPROPERTY(sys1.id, 'ExecIsInsteadOfTrigger') = 1

+                           THEN 'INSTEAD OF' ELSE 'AFTER'

+                         END trigger_type,

+                         '' trigger_comment

+                    FROM sysobjects sys1

+                    JOIN sysobjects sys2 ON sys1.parent_obj = sys2.id

+                    JOIN syscomments c ON sys1.id = c.id

+                   WHERE sys1.xtype = 'TR'

+                     AND sys1.name = ". $db->quote($trigger, 'text');

+

+        $types = array(

+            'trigger_name'    => 'text',

+            'table_name'      => 'text',

+            'trigger_body'    => 'text',

+            'trigger_type'    => 'text',

+            'trigger_event'   => 'text',

+            'trigger_comment' => 'text',

+            'trigger_enabled' => 'boolean',

+            'is_encripted'    => 'boolean',

+        );

+

+        $def = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($def)) {

+            return $def;

+        }

+        $trg_body = $db->queryCol('EXEC sp_helptext '. $db->quote($trigger, 'text'), 'text');

+        if (!PEAR::isError($trg_body)) {

+            $def['trigger_body'] = implode('', $trg_body);

+        }

+        return $def;

+    }

+

+    // }}}

+    // {{{ tableInfo()

+

+    /**

+     * Returns information about a table or a result set

+     *

+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>

+     * is a table name.

+     *

+     * @param object|string  $result  MDB2_result object from a query or a

+     *                                 string containing the name of a table.

+     *                                 While this also accepts a query result

+     *                                 resource identifier, this behavior is

+     *                                 deprecated.

+     * @param int            $mode    a valid tableInfo mode

+     *

+     * @return array  an associative array with the information requested.

+     *                 A MDB2_Error object on failure.

+     *

+     * @see MDB2_Driver_Common::tableInfo()

+     */

+    function tableInfo($result, $mode = null)

+    {

+        if (is_string($result)) {

+           return parent::tableInfo($result, $mode);

+        }

+

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;

+        if (!is_resource($resource)) {

+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,

+                'Could not generate result resource', __FUNCTION__);

+        }

+

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            if ($db->options['field_case'] == CASE_LOWER) {

+                $case_func = 'strtolower';

+            } else {

+                $case_func = 'strtoupper';

+            }

+        } else {

+            $case_func = 'strval';

+        }

+

+        $count = @mssql_num_fields($resource);

+        $res   = array();

+

+        if ($mode) {

+            $res['num_fields'] = $count;

+        }

+

+        $db->loadModule('Datatype', null, true);

+        for ($i = 0; $i < $count; $i++) {

+            $res[$i] = array(

+                'table' => '',

+                'name'  => $case_func(@mssql_field_name($resource, $i)),

+                'type'  => @mssql_field_type($resource, $i),

+                'length'   => @mssql_field_length($resource, $i),

+                'flags' => '',

+            );

+            $mdb2type_info = $db->datatype->mapNativeDatatype($res[$i]);

+            if (PEAR::isError($mdb2type_info)) {

+               return $mdb2type_info;

+            }

+            $res[$i]['mdb2type'] = $mdb2type_info[0][0];

+            if ($mode & MDB2_TABLEINFO_ORDER) {

+                $res['order'][$res[$i]['name']] = $i;

+            }

+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {

+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;

+            }

+        }

+

+        return $res;

+    }

+

+    // }}}

+    // {{{ _mssql_field_flags()

+

+    /**

+     * Get a column's flags

+     *

+     * Supports "not_null", "primary_key",

+     * "auto_increment" (mssql identity), "timestamp" (mssql timestamp),

+     * "unique_key" (mssql unique index, unique check or primary_key) and

+     * "multiple_key" (multikey index)

+     *

+     * mssql timestamp is NOT similar to the mysql timestamp so this is maybe

+     * not useful at all - is the behaviour of mysql_field_flags that primary

+     * keys are alway unique? is the interpretation of multiple_key correct?

+     *

+     * @param string $table   the table name

+     * @param string $column  the field name

+     *

+     * @return string  the flags

+     *

+     * @access protected

+     * @author Joern Barthel <j_barthel@web.de>

+     */

+    function _mssql_field_flags($table, $column)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        static $tableName = null;

+        static $flags = array();

+

+        if ($table != $tableName) {

+

+            $flags = array();

+            $tableName = $table;

+

+            // get unique and primary keys

+            $res = $db->queryAll("EXEC SP_HELPINDEX[$table]", null, MDB2_FETCHMODE_ASSOC);

+

+            foreach ($res as $val) {

+                $val = array_change_key_case($val, CASE_LOWER);

+                $keys = explode(', ', $val['index_keys']);

+

+                if (sizeof($keys) > 1) {

+                    foreach ($keys as $key) {

+                        $this->_add_flag($flags[$key], 'multiple_key');

+                    }

+                }

+

+                if (strpos($val['index_description'], 'primary key')) {

+                    foreach ($keys as $key) {

+                        $this->_add_flag($flags[$key], 'primary_key');

+                    }

+                } elseif (strpos($val['index_description'], 'unique')) {

+                    foreach ($keys as $key) {

+                        $this->_add_flag($flags[$key], 'unique_key');

+                    }

+                }

+            }

+

+            // get auto_increment, not_null and timestamp

+            $res = $db->queryAll("EXEC SP_COLUMNS[$table]", null, MDB2_FETCHMODE_ASSOC);

+

+            foreach ($res as $val) {

+                $val = array_change_key_case($val, CASE_LOWER);

+                if ($val['nullable'] == '0') {

+                    $this->_add_flag($flags[$val['column_name']], 'not_null');

+                }

+                if (strpos($val['type_name'], 'identity')) {

+                    $this->_add_flag($flags[$val['column_name']], 'auto_increment');

+                }

+                if (strpos($val['type_name'], 'timestamp')) {

+                    $this->_add_flag($flags[$val['column_name']], 'timestamp');

+                }

+            }

+        }

+

+        if (!empty($flags[$column])) {

+            return(implode(' ', $flags[$column]));

+        }

+        return '';

+    }

+

+    // }}}

+    // {{{ _add_flag()

+

+    /**

+     * Adds a string to the flags array if the flag is not yet in there

+     * - if there is no flag present the array is created

+     *

+     * @param array  &$array  the reference to the flag-array

+     * @param string $value   the flag value

+     *

+     * @return void

+     *

+     * @access protected

+     * @author Joern Barthel <j_barthel@web.de>

+     */

+    function _add_flag(&$array, $value)

+    {

+        if (!is_array($array)) {

+            $array = array($value);

+        } elseif (!in_array($value, $array)) {

+            array_push($array, $value);

+        }

+    }

+

+    // }}}

+}

+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Reverse/mysql.php b/program/lib/MDB2/Driver/Reverse/mysql.php
new file mode 100644
index 000000000..ac6abedbc
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/mysql.php
@@ -0,0 +1,514 @@
+<?php

+// +----------------------------------------------------------------------+

+// | PHP versions 4 and 5                                                 |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |

+// | Stig. S. Bakken, Lukas Smith                                         |

+// | All rights reserved.                                                 |

+// +----------------------------------------------------------------------+

+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |

+// | API as well as database abstraction for PHP applications.            |

+// | This LICENSE is in the BSD license style.                            |

+// |                                                                      |

+// | Redistribution and use in source and binary forms, with or without   |

+// | modification, are permitted provided that the following conditions   |

+// | are met:                                                             |

+// |                                                                      |

+// | Redistributions of source code must retain the above copyright       |

+// | notice, this list of conditions and the following disclaimer.        |

+// |                                                                      |

+// | Redistributions in binary form must reproduce the above copyright    |

+// | notice, this list of conditions and the following disclaimer in the  |

+// | documentation and/or other materials provided with the distribution. |

+// |                                                                      |

+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |

+// | Lukas Smith nor the names of his contributors may be used to endorse |

+// | or promote products derived from this software without specific prior|

+// | written permission.                                                  |

+// |                                                                      |

+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |

+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |

+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |

+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |

+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |

+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |

+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|

+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |

+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |

+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|

+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |

+// | POSSIBILITY OF SUCH DAMAGE.                                          |

+// +----------------------------------------------------------------------+

+// | Author: Lukas Smith <smith@pooteeweet.org>                           |

+// +----------------------------------------------------------------------+

+//

+// $Id: mysql.php,v 1.79 2007/11/25 13:38:29 quipo Exp $

+//

+

+require_once 'MDB2/Driver/Reverse/Common.php';

+

+/**

+ * MDB2 MySQL driver for the schema reverse engineering module

+ *

+ * @package MDB2

+ * @category Database

+ * @author  Lukas Smith <smith@pooteeweet.org>

+ * @author  Lorenzo Alberton <l.alberton@quipo.it>

+ */

+class MDB2_Driver_Reverse_mysql extends MDB2_Driver_Reverse_Common

+{

+    // {{{ getTableFieldDefinition()

+

+    /**

+     * Get the structure of a field into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $field_name name of field that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableFieldDefinition($table_name, $field_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $result = $db->loadModule('Datatype', null, true);

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW FULL COLUMNS FROM $table LIKE ".$db->quote($field_name);

+        $columns = $db->queryAll($query, null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($columns)) {

+            return $columns;

+        }

+        foreach ($columns as $column) {

+            $column = array_change_key_case($column, CASE_LOWER);

+            $column['name'] = $column['field'];

+            unset($column['field']);

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $column['name'] = strtolower($column['name']);

+                } else {

+                    $column['name'] = strtoupper($column['name']);

+                }

+            } else {

+                $column = array_change_key_case($column, $db->options['field_case']);

+            }

+            if ($field_name == $column['name']) {

+                $mapped_datatype = $db->datatype->mapNativeDatatype($column);

+                if (PEAR::isError($mapped_datatype)) {

+                    return $mapped_datatype;

+                }

+                list($types, $length, $unsigned, $fixed) = $mapped_datatype;

+                $notnull = false;

+                if (empty($column['null']) || $column['null'] !== 'YES') {

+                    $notnull = true;

+                }

+                $default = false;

+                if (array_key_exists('default', $column)) {

+                    $default = $column['default'];

+                    if (is_null($default) && $notnull) {

+                        $default = '';

+                    }

+                }

+                $autoincrement = false;

+                if (!empty($column['extra']) && $column['extra'] == 'auto_increment') {

+                    $autoincrement = true;

+                }

+                $collate = null;

+                if (!empty($column['collation'])) {

+                    $collate = $column['collation'];

+                    $charset = preg_replace('/(.+?)(_.+)?/', '$1', $collate);

+                }

+

+                $definition[0] = array(

+                    'notnull' => $notnull,

+                    'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type'])

+                );

+                if (!is_null($length)) {

+                    $definition[0]['length'] = $length;

+                }

+                if (!is_null($unsigned)) {

+                    $definition[0]['unsigned'] = $unsigned;

+                }

+                if (!is_null($fixed)) {

+                    $definition[0]['fixed'] = $fixed;

+                }

+                if ($default !== false) {

+                    $definition[0]['default'] = $default;

+                }

+                if ($autoincrement !== false) {

+                    $definition[0]['autoincrement'] = $autoincrement;

+                }

+                if (!is_null($collate)) {

+                    $definition[0]['collate'] = $collate;

+                    $definition[0]['charset'] = $charset;

+                }

+                foreach ($types as $key => $type) {

+                    $definition[$key] = $definition[0];

+                    if ($type == 'clob' || $type == 'blob') {

+                        unset($definition[$key]['default']);

+                    } elseif ($type == 'timestamp' && $notnull && empty($definition[$key]['default'])) {

+                        $definition[$key]['default'] = '0000-00-00 00:00:00';

+                    }

+                    $definition[$key]['type'] = $type;

+                    $definition[$key]['mdb2type'] = $type;

+                }

+                return $definition;

+            }

+        }

+

+        return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+            'it was not specified an existing table column', __FUNCTION__);

+    }

+

+    // }}}

+    // {{{ getTableIndexDefinition()

+

+    /**

+     * Get the structure of an index into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $index_name name of index that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableIndexDefinition($table_name, $index_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";

+        $index_name_mdb2 = $db->getIndexName($index_name);

+        $result = $db->queryRow(sprintf($query, $db->quote($index_name_mdb2)));

+        if (!PEAR::isError($result) && !is_null($result)) {

+            // apply 'idxname_format' only if the query succeeded, otherwise

+            // fallback to the given $index_name, without transformation

+            $index_name = $index_name_mdb2;

+        }

+        $result = $db->query(sprintf($query, $db->quote($index_name)));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+        $colpos = 1;

+        $definition = array();

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $row = array_change_key_case($row, CASE_LOWER);

+            $key_name = $row['key_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $key_name = strtolower($key_name);

+                } else {

+                    $key_name = strtoupper($key_name);

+                }

+            }

+            if ($index_name == $key_name) {

+                if (!$row['non_unique']) {

+                    return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                        $index_name . ' is not an existing table index', __FUNCTION__);

+                }

+                $column_name = $row['column_name'];

+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                    if ($db->options['field_case'] == CASE_LOWER) {

+                        $column_name = strtolower($column_name);

+                    } else {

+                        $column_name = strtoupper($column_name);

+                    }

+                }

+                $definition['fields'][$column_name] = array(

+                    'position' => $colpos++

+                );

+                if (!empty($row['collation'])) {

+                    $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'

+                        ? 'ascending' : 'descending');

+                }

+            }

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $index_name . ' is not an existing table index', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableConstraintDefinition()

+

+    /**

+     * Get the structure of a constraint into an array

+     *

+     * @param string $table_name      name of table that should be used in method

+     * @param string $constraint_name name of constraint that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableConstraintDefinition($table_name, $constraint_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+        $constraint_name_original = $constraint_name;

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";

+        if (strtolower($constraint_name) != 'primary') {

+            $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+            $result = $db->queryRow(sprintf($query, $db->quote($constraint_name_mdb2)));

+            if (!PEAR::isError($result) && !is_null($result)) {

+                // apply 'idxname_format' only if the query succeeded, otherwise

+                // fallback to the given $index_name, without transformation

+                $constraint_name = $constraint_name_mdb2;

+            }

+        }

+        $result = $db->query(sprintf($query, $db->quote($constraint_name)));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+        $colpos = 1;

+        //default values, eventually overridden

+        $definition = array(

+            'primary' => false,

+            'unique'  => false,

+            'foreign' => false,

+            'check'   => false,

+            'fields'  => array(),

+            'references' => array(

+                'table'  => '',

+                'fields' => array(),

+            ),

+            'onupdate'  => '',

+            'ondelete'  => '',

+            'match'     => '',

+            'deferrable'        => false,

+            'initiallydeferred' => false,

+        );

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $row = array_change_key_case($row, CASE_LOWER);

+            $key_name = $row['key_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $key_name = strtolower($key_name);

+                } else {

+                    $key_name = strtoupper($key_name);

+                }

+            }

+            if ($constraint_name == $key_name) {

+                if ($row['non_unique']) {

+                    //FOREIGN KEY?

+                    $query = 'SHOW CREATE TABLE '. $db->escape($table);

+                    $constraint = $db->queryOne($query, 'text', 1);

+                    if (!PEAR::isError($constraint) && !empty($constraint)) {

+                        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                            if ($db->options['field_case'] == CASE_LOWER) {

+                                $constraint = strtolower($constraint);

+                            } else {

+                                $constraint = strtoupper($constraint);

+                            }

+                        }

+                        $pattern = '/\bCONSTRAINT\s+'.$constraint_name.'\s+FOREIGN KEY\s+\(([^\)]+)\) \bREFERENCES\b ([^ ]+) \(([^\)]+)\)/i';

+                        if (!preg_match($pattern, str_replace('`', '', $constraint), $matches)) {

+                            //fallback to original constraint name

+                            $pattern = '/\bCONSTRAINT\s+'.$constraint_name_original.'\s+FOREIGN KEY\s+\(([^\)]+)\) \bREFERENCES\b ([^ ]+) \(([^\)]+)\)/i';

+                        }

+                        if (preg_match($pattern, str_replace('`', '', $constraint), $matches)) {

+                            $definition['foreign'] = true;

+                            $column_names = explode(',', $matches[1]);

+                            $referenced_cols = explode(',', $matches[3]);

+                            $definition['references'] = array(

+                                'table'  => $matches[2],

+                                'fields' => array(),

+                            );

+                            $colpos = 1;

+                            foreach ($column_names as $column_name) {

+                                $definition['fields'][trim($column_name)] = array(

+                                    'position' => $colpos++

+                                );

+                            }

+                            $colpos = 1;

+                            foreach ($referenced_cols as $column_name) {

+                                $definition['references']['fields'][trim($column_name)] = array(

+                                    'position' => $colpos++

+                                );

+                            }

+                            $definition['onupdate'] = 'NO ACTION';

+                            $definition['ondelete'] = 'NO ACTION';

+                            $definition['match']    = 'SIMPLE';

+                            return $definition;

+                        }

+                    }

+

+                    return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                        $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+                }

+                if ($row['key_name'] == 'PRIMARY') {

+                    $definition['primary'] = true;

+                } elseif (!$row['non_unique']) {

+                    $definition['unique'] = true;

+                }

+                $column_name = $row['column_name'];

+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                    if ($db->options['field_case'] == CASE_LOWER) {

+                        $column_name = strtolower($column_name);

+                    } else {

+                        $column_name = strtoupper($column_name);

+                    }

+                }

+                $definition['fields'][$column_name] = array(

+                    'position' => $colpos++

+                );

+                if (!empty($row['collation'])) {

+                    $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'

+                        ? 'ascending' : 'descending');

+                }

+            }

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTriggerDefinition()

+

+    /**

+     * Get the structure of a trigger into an array

+     *

+     * EXPERIMENTAL

+     *

+     * WARNING: this function is experimental and may change the returned value

+     * at any time until labelled as non-experimental

+     *

+     * @param string    $trigger    name of trigger that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTriggerDefinition($trigger)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $query = 'SELECT trigger_name,

+                         event_object_table AS table_name,

+                         action_statement AS trigger_body,

+                         action_timing AS trigger_type,

+                         event_manipulation AS trigger_event

+                    FROM information_schema.triggers

+                   WHERE trigger_name = '. $db->quote($trigger, 'text');

+        $types = array(

+            'trigger_name'    => 'text',

+            'table_name'      => 'text',

+            'trigger_body'    => 'text',

+            'trigger_type'    => 'text',

+            'trigger_event'   => 'text',

+        );

+        $def = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($def)) {

+            return $def;

+        }

+        $def['trigger_comment'] = '';

+        $def['trigger_enabled'] = true;

+        return $def;

+    }

+

+    // }}}

+    // {{{ tableInfo()

+

+    /**

+     * Returns information about a table or a result set

+     *

+     * @param object|string  $result  MDB2_result object from a query or a

+     *                                 string containing the name of a table.

+     *                                 While this also accepts a query result

+     *                                 resource identifier, this behavior is

+     *                                 deprecated.

+     * @param int            $mode    a valid tableInfo mode

+     *

+     * @return array  an associative array with the information requested.

+     *                 A MDB2_Error object on failure.

+     *

+     * @see MDB2_Driver_Common::setOption()

+     */

+    function tableInfo($result, $mode = null)

+    {

+        if (is_string($result)) {

+           return parent::tableInfo($result, $mode);

+        }

+

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;

+        if (!is_resource($resource)) {

+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,

+                'Could not generate result resource', __FUNCTION__);

+        }

+

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            if ($db->options['field_case'] == CASE_LOWER) {

+                $case_func = 'strtolower';

+            } else {

+                $case_func = 'strtoupper';

+            }

+        } else {

+            $case_func = 'strval';

+        }

+

+        $count = @mysql_num_fields($resource);

+        $res   = array();

+        if ($mode) {

+            $res['num_fields'] = $count;

+        }

+

+        $db->loadModule('Datatype', null, true);

+        for ($i = 0; $i < $count; $i++) {

+            $res[$i] = array(

+                'table' => $case_func(@mysql_field_table($resource, $i)),

+                'name'  => $case_func(@mysql_field_name($resource, $i)),

+                'type'  => @mysql_field_type($resource, $i),

+                'length'   => @mysql_field_len($resource, $i),

+                'flags' => @mysql_field_flags($resource, $i),

+            );

+            if ($res[$i]['type'] == 'string') {

+                $res[$i]['type'] = 'char';

+            } elseif ($res[$i]['type'] == 'unknown') {

+                $res[$i]['type'] = 'decimal';

+            }

+            $mdb2type_info = $db->datatype->mapNativeDatatype($res[$i]);

+            if (PEAR::isError($mdb2type_info)) {

+               return $mdb2type_info;

+            }

+            $res[$i]['mdb2type'] = $mdb2type_info[0][0];

+            if ($mode & MDB2_TABLEINFO_ORDER) {

+                $res['order'][$res[$i]['name']] = $i;

+            }

+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {

+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;

+            }

+        }

+

+        return $res;

+    }

+}

+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Reverse/mysqli.php b/program/lib/MDB2/Driver/Reverse/mysqli.php
new file mode 100644
index 000000000..741fac059
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/mysqli.php
@@ -0,0 +1,578 @@
+<?php

+// +----------------------------------------------------------------------+

+// | PHP versions 4 and 5                                                 |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |

+// | Stig. S. Bakken, Lukas Smith                                         |

+// | All rights reserved.                                                 |

+// +----------------------------------------------------------------------+

+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |

+// | API as well as database abstraction for PHP applications.            |

+// | This LICENSE is in the BSD license style.                            |

+// |                                                                      |

+// | Redistribution and use in source and binary forms, with or without   |

+// | modification, are permitted provided that the following conditions   |

+// | are met:                                                             |

+// |                                                                      |

+// | Redistributions of source code must retain the above copyright       |

+// | notice, this list of conditions and the following disclaimer.        |

+// |                                                                      |

+// | Redistributions in binary form must reproduce the above copyright    |

+// | notice, this list of conditions and the following disclaimer in the  |

+// | documentation and/or other materials provided with the distribution. |

+// |                                                                      |

+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |

+// | Lukas Smith nor the names of his contributors may be used to endorse |

+// | or promote products derived from this software without specific prior|

+// | written permission.                                                  |

+// |                                                                      |

+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |

+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |

+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |

+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |

+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |

+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |

+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|

+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |

+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |

+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|

+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |

+// | POSSIBILITY OF SUCH DAMAGE.                                          |

+// +----------------------------------------------------------------------+

+// | Author: Lukas Smith <smith@pooteeweet.org>                           |

+// +----------------------------------------------------------------------+

+//

+// $Id: mysqli.php,v 1.69 2007/11/25 13:38:29 quipo Exp $

+//

+

+require_once 'MDB2/Driver/Reverse/Common.php';

+

+/**

+ * MDB2 MySQLi driver for the schema reverse engineering module

+ *

+ * @package MDB2

+ * @category Database

+ * @author  Lukas Smith <smith@pooteeweet.org>

+ * @author  Lorenzo Alberton <l.alberton@quipo.it>

+ */

+class MDB2_Driver_Reverse_mysqli extends MDB2_Driver_Reverse_Common

+{

+    /**

+     * Array for converting MYSQLI_*_FLAG constants to text values

+     * @var    array

+     * @access public

+     */

+    var $flags = array(

+        MYSQLI_NOT_NULL_FLAG        => 'not_null',

+        MYSQLI_PRI_KEY_FLAG         => 'primary_key',

+        MYSQLI_UNIQUE_KEY_FLAG      => 'unique_key',

+        MYSQLI_MULTIPLE_KEY_FLAG    => 'multiple_key',

+        MYSQLI_BLOB_FLAG            => 'blob',

+        MYSQLI_UNSIGNED_FLAG        => 'unsigned',

+        MYSQLI_ZEROFILL_FLAG        => 'zerofill',

+        MYSQLI_AUTO_INCREMENT_FLAG  => 'auto_increment',

+        MYSQLI_TIMESTAMP_FLAG       => 'timestamp',

+        MYSQLI_SET_FLAG             => 'set',

+        // MYSQLI_NUM_FLAG             => 'numeric',  // unnecessary

+        // MYSQLI_PART_KEY_FLAG        => 'multiple_key',  // duplicatvie

+        MYSQLI_GROUP_FLAG           => 'group_by'

+    );

+

+    /**

+     * Array for converting MYSQLI_TYPE_* constants to text values

+     * @var    array

+     * @access public

+     */

+    var $types = array(

+        MYSQLI_TYPE_DECIMAL     => 'decimal',

+        246                     => 'decimal',

+        MYSQLI_TYPE_TINY        => 'tinyint',

+        MYSQLI_TYPE_SHORT       => 'int',

+        MYSQLI_TYPE_LONG        => 'int',

+        MYSQLI_TYPE_FLOAT       => 'float',

+        MYSQLI_TYPE_DOUBLE      => 'double',

+        // MYSQLI_TYPE_NULL        => 'DEFAULT NULL',  // let flags handle it

+        MYSQLI_TYPE_TIMESTAMP   => 'timestamp',

+        MYSQLI_TYPE_LONGLONG    => 'bigint',

+        MYSQLI_TYPE_INT24       => 'mediumint',

+        MYSQLI_TYPE_DATE        => 'date',

+        MYSQLI_TYPE_TIME        => 'time',

+        MYSQLI_TYPE_DATETIME    => 'datetime',

+        MYSQLI_TYPE_YEAR        => 'year',

+        MYSQLI_TYPE_NEWDATE     => 'date',

+        MYSQLI_TYPE_ENUM        => 'enum',

+        MYSQLI_TYPE_SET         => 'set',

+        MYSQLI_TYPE_TINY_BLOB   => 'tinyblob',

+        MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob',

+        MYSQLI_TYPE_LONG_BLOB   => 'longblob',

+        MYSQLI_TYPE_BLOB        => 'blob',

+        MYSQLI_TYPE_VAR_STRING  => 'varchar',

+        MYSQLI_TYPE_STRING      => 'char',

+        MYSQLI_TYPE_GEOMETRY    => 'geometry',

+    );

+

+    // {{{ getTableFieldDefinition()

+

+    /**

+     * Get the structure of a field into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $field_name name of field that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableFieldDefinition($table_name, $field_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $result = $db->loadModule('Datatype', null, true);

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW FULL COLUMNS FROM $table LIKE ".$db->quote($field_name);

+        $columns = $db->queryAll($query, null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($columns)) {

+            return $columns;

+        }

+        foreach ($columns as $column) {

+            $column = array_change_key_case($column, CASE_LOWER);

+            $column['name'] = $column['field'];

+            unset($column['field']);

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $column['name'] = strtolower($column['name']);

+                } else {

+                    $column['name'] = strtoupper($column['name']);

+                }

+            } else {

+                $column = array_change_key_case($column, $db->options['field_case']);

+            }

+            if ($field_name == $column['name']) {

+                $mapped_datatype = $db->datatype->mapNativeDatatype($column);

+                if (PEAR::isError($mapped_datatype)) {

+                    return $mapped_datatype;

+                }

+                list($types, $length, $unsigned, $fixed) = $mapped_datatype;

+                $notnull = false;

+                if (empty($column['null']) || $column['null'] !== 'YES') {

+                    $notnull = true;

+                }

+                $default = false;

+                if (array_key_exists('default', $column)) {

+                    $default = $column['default'];

+                    if (is_null($default) && $notnull) {

+                        $default = '';

+                    }

+                }

+                $autoincrement = false;

+                if (!empty($column['extra']) && $column['extra'] == 'auto_increment') {

+                    $autoincrement = true;

+                }

+                $collate = null;

+                if (!empty($column['collation'])) {

+                    $collate = $column['collation'];

+                    $charset = preg_replace('/(.+?)(_.+)?/', '$1', $collate);

+                }

+

+                $definition[0] = array(

+                    'notnull' => $notnull,

+                    'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type'])

+                );

+                if (!is_null($length)) {

+                    $definition[0]['length'] = $length;

+                }

+                if (!is_null($unsigned)) {

+                    $definition[0]['unsigned'] = $unsigned;

+                }

+                if (!is_null($fixed)) {

+                    $definition[0]['fixed'] = $fixed;

+                }

+                if ($default !== false) {

+                    $definition[0]['default'] = $default;

+                }

+                if ($autoincrement !== false) {

+                    $definition[0]['autoincrement'] = $autoincrement;

+                }

+                if (!is_null($collate)) {

+                    $definition[0]['collate'] = $collate;

+                    $definition[0]['charset'] = $charset;

+                }

+                foreach ($types as $key => $type) {

+                    $definition[$key] = $definition[0];

+                    if ($type == 'clob' || $type == 'blob') {

+                        unset($definition[$key]['default']);

+                    } elseif ($type == 'timestamp' && $notnull && empty($definition[$key]['default'])) {

+                        $definition[$key]['default'] = '0000-00-00 00:00:00';

+                    }

+                    $definition[$key]['type'] = $type;

+                    $definition[$key]['mdb2type'] = $type;

+                }

+                return $definition;

+            }

+        }

+

+        return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+            'it was not specified an existing table column', __FUNCTION__);

+    }

+

+    // }}}

+    // {{{ getTableIndexDefinition()

+

+    /**

+     * Get the structure of an index into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $index_name name of index that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableIndexDefinition($table_name, $index_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";

+        $index_name_mdb2 = $db->getIndexName($index_name);

+        $result = $db->queryRow(sprintf($query, $db->quote($index_name_mdb2)));

+        if (!PEAR::isError($result) && !is_null($result)) {

+            // apply 'idxname_format' only if the query succeeded, otherwise

+            // fallback to the given $index_name, without transformation

+            $index_name = $index_name_mdb2;

+        }

+        $result = $db->query(sprintf($query, $db->quote($index_name)));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+        $colpos = 1;

+        $definition = array();

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $row = array_change_key_case($row, CASE_LOWER);

+            $key_name = $row['key_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $key_name = strtolower($key_name);

+                } else {

+                    $key_name = strtoupper($key_name);

+                }

+            }

+            if ($index_name == $key_name) {

+                if (!$row['non_unique']) {

+                    return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                        $index_name . ' is not an existing table index', __FUNCTION__);

+                }

+                $column_name = $row['column_name'];

+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                    if ($db->options['field_case'] == CASE_LOWER) {

+                        $column_name = strtolower($column_name);

+                    } else {

+                        $column_name = strtoupper($column_name);

+                    }

+                }

+                $definition['fields'][$column_name] = array(

+                    'position' => $colpos++

+                );

+                if (!empty($row['collation'])) {

+                    $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'

+                        ? 'ascending' : 'descending');

+                }

+            }

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $index_name . ' is not an existing table index', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableConstraintDefinition()

+

+    /**

+     * Get the structure of a constraint into an array

+     *

+     * @param string $table_name      name of table that should be used in method

+     * @param string $constraint_name name of constraint that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableConstraintDefinition($table_name, $constraint_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+        $constraint_name_original = $constraint_name;

+

+        $table = $db->quoteIdentifier($table, true);

+        $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";

+        if (strtolower($constraint_name) != 'primary') {

+            $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+            $result = $db->queryRow(sprintf($query, $db->quote($constraint_name_mdb2)));

+            if (!PEAR::isError($result) && !is_null($result)) {

+                // apply 'idxname_format' only if the query succeeded, otherwise

+                // fallback to the given $index_name, without transformation

+                $constraint_name = $constraint_name_mdb2;

+            }

+        }

+        $result = $db->query(sprintf($query, $db->quote($constraint_name)));

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+        $colpos = 1;

+        //default values, eventually overridden

+        $definition = array(

+            'primary' => false,

+            'unique'  => false,

+            'foreign' => false,

+            'check'   => false,

+            'fields'  => array(),

+            'references' => array(

+                'table'  => '',

+                'fields' => array(),

+            ),

+            'onupdate'  => '',

+            'ondelete'  => '',

+            'match'     => '',

+            'deferrable'        => false,

+            'initiallydeferred' => false,

+        );

+        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {

+            $row = array_change_key_case($row, CASE_LOWER);

+            $key_name = $row['key_name'];

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $key_name = strtolower($key_name);

+                } else {

+                    $key_name = strtoupper($key_name);

+                }

+            }

+            if ($constraint_name == $key_name) {

+                if ($row['non_unique']) {

+                    //FOREIGN KEY?

+                    $query = 'SHOW CREATE TABLE '. $db->escape($table);

+                    $constraint = $db->queryOne($query, 'text', 1);

+                    if (!PEAR::isError($constraint) && !empty($constraint)) {

+                        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                            if ($db->options['field_case'] == CASE_LOWER) {

+                                $constraint = strtolower($constraint);

+                            } else {

+                                $constraint = strtoupper($constraint);

+                            }

+                        }

+                        $pattern = '/\bCONSTRAINT\s+'.$constraint_name.'\s+FOREIGN KEY\s+\(([^\)]+)\) \bREFERENCES\b ([^ ]+) \(([^\)]+)\)/i';

+                        if (!preg_match($pattern, str_replace('`', '', $constraint), $matches)) {

+                            //fallback to original constraint name

+                            $pattern = '/\bCONSTRAINT\s+'.$constraint_name_original.'\s+FOREIGN KEY\s+\(([^\)]+)\) \bREFERENCES\b ([^ ]+) \(([^\)]+)\)/i';

+                        }

+                        if (preg_match($pattern, str_replace('`', '', $constraint), $matches)) {

+                            $definition['foreign'] = true;

+                            $column_names = explode(',', $matches[1]);

+                            $referenced_cols = explode(',', $matches[3]);

+                            $definition['references'] = array(

+                                'table'  => $matches[2],

+                                'fields' => array(),

+                            );

+                            $colpos = 1;

+                            foreach ($column_names as $column_name) {

+                                $definition['fields'][trim($column_name)] = array(

+                                    'position' => $colpos++

+                                );

+                            }

+                            $colpos = 1;

+                            foreach ($referenced_cols as $column_name) {

+                                $definition['references']['fields'][trim($column_name)] = array(

+                                    'position' => $colpos++

+                                );

+                            }

+                            $definition['onupdate'] = 'NO ACTION';

+                            $definition['ondelete'] = 'NO ACTION';

+                            $definition['match']    = 'SIMPLE';

+                            return $definition;

+                        }

+                    }

+

+                    return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                        $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+                }

+                if ($row['key_name'] == 'PRIMARY') {

+                    $definition['primary'] = true;

+                } elseif (!$row['non_unique']) {

+                    $definition['unique'] = true;

+                }

+                $column_name = $row['column_name'];

+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                    if ($db->options['field_case'] == CASE_LOWER) {

+                        $column_name = strtolower($column_name);

+                    } else {

+                        $column_name = strtoupper($column_name);

+                    }

+                }

+                $definition['fields'][$column_name] = array(

+                    'position' => $colpos++

+                );

+                if (!empty($row['collation'])) {

+                    $definition['fields'][$column_name]['sorting'] = ($row['collation'] == 'A'

+                        ? 'ascending' : 'descending');

+                }

+            }

+        }

+        $result->free();

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTriggerDefinition()

+

+    /**

+     * Get the structure of a trigger into an array

+     *

+     * EXPERIMENTAL

+     *

+     * WARNING: this function is experimental and may change the returned value

+     * at any time until labelled as non-experimental

+     *

+     * @param string    $trigger    name of trigger that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTriggerDefinition($trigger)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $query = 'SELECT trigger_name,

+                         event_object_table AS table_name,

+                         action_statement AS trigger_body,

+                         action_timing AS trigger_type,

+                         event_manipulation AS trigger_event

+                    FROM information_schema.triggers

+                   WHERE trigger_name = '. $db->quote($trigger, 'text');

+        $types = array(

+            'trigger_name'    => 'text',

+            'table_name'      => 'text',

+            'trigger_body'    => 'text',

+            'trigger_type'    => 'text',

+            'trigger_event'   => 'text',

+        );

+        $def = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($def)) {

+            return $def;

+        }

+        $def['trigger_comment'] = '';

+        $def['trigger_enabled'] = true;

+        return $def;

+    }

+

+    // }}}

+    // {{{ tableInfo()

+

+    /**

+     * Returns information about a table or a result set

+     *

+     * @param object|string  $result  MDB2_result object from a query or a

+     *                                 string containing the name of a table.

+     *                                 While this also accepts a query result

+     *                                 resource identifier, this behavior is

+     *                                 deprecated.

+     * @param int            $mode    a valid tableInfo mode

+     *

+     * @return array  an associative array with the information requested.

+     *                 A MDB2_Error object on failure.

+     *

+     * @see MDB2_Driver_Common::setOption()

+     */

+    function tableInfo($result, $mode = null)

+    {

+        if (is_string($result)) {

+           return parent::tableInfo($result, $mode);

+        }

+

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;

+        if (!is_object($resource)) {

+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,

+                'Could not generate result resource', __FUNCTION__);

+        }

+

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            if ($db->options['field_case'] == CASE_LOWER) {

+                $case_func = 'strtolower';

+            } else {

+                $case_func = 'strtoupper';

+            }

+        } else {

+            $case_func = 'strval';

+        }

+

+        $count = @mysqli_num_fields($resource);

+        $res = array();

+        if ($mode) {

+            $res['num_fields'] = $count;

+        }

+

+        $db->loadModule('Datatype', null, true);

+        for ($i = 0; $i < $count; $i++) {

+            $tmp = @mysqli_fetch_field($resource);

+

+            $flags = '';

+            foreach ($this->flags as $const => $means) {

+                if ($tmp->flags & $const) {

+                    $flags.= $means . ' ';

+                }

+            }

+            if ($tmp->def) {

+                $flags.= 'default_' . rawurlencode($tmp->def);

+            }

+            $flags = trim($flags);

+

+            $res[$i] = array(

+                'table'  => $case_func($tmp->table),

+                'name'   => $case_func($tmp->name),

+                'type'   => isset($this->types[$tmp->type])

+                    ? $this->types[$tmp->type] : 'unknown',

+                // http://bugs.php.net/?id=36579

+                'length' => $tmp->length,

+                'flags'  => $flags,

+            );

+            $mdb2type_info = $db->datatype->mapNativeDatatype($res[$i]);

+            if (PEAR::isError($mdb2type_info)) {

+               return $mdb2type_info;

+            }

+            $res[$i]['mdb2type'] = $mdb2type_info[0][0];

+            if ($mode & MDB2_TABLEINFO_ORDER) {

+                $res['order'][$res[$i]['name']] = $i;

+            }

+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {

+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;

+            }

+        }

+

+        return $res;

+    }

+}

+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Reverse/pgsql.php b/program/lib/MDB2/Driver/Reverse/pgsql.php
new file mode 100644
index 000000000..930eea93f
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/pgsql.php
@@ -0,0 +1,527 @@
+<?php

+// +----------------------------------------------------------------------+

+// | PHP versions 4 and 5                                                 |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |

+// | Stig. S. Bakken, Lukas Smith                                         |

+// | All rights reserved.                                                 |

+// +----------------------------------------------------------------------+

+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |

+// | API as well as database abstraction for PHP applications.            |

+// | This LICENSE is in the BSD license style.                            |

+// |                                                                      |

+// | Redistribution and use in source and binary forms, with or without   |

+// | modification, are permitted provided that the following conditions   |

+// | are met:                                                             |

+// |                                                                      |

+// | Redistributions of source code must retain the above copyright       |

+// | notice, this list of conditions and the following disclaimer.        |

+// |                                                                      |

+// | Redistributions in binary form must reproduce the above copyright    |

+// | notice, this list of conditions and the following disclaimer in the  |

+// | documentation and/or other materials provided with the distribution. |

+// |                                                                      |

+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |

+// | Lukas Smith nor the names of his contributors may be used to endorse |

+// | or promote products derived from this software without specific prior|

+// | written permission.                                                  |

+// |                                                                      |

+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |

+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |

+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |

+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |

+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |

+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |

+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|

+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |

+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |

+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|

+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |

+// | POSSIBILITY OF SUCH DAMAGE.                                          |

+// +----------------------------------------------------------------------+

+// | Authors: Paul Cooper <pgc@ucecom.com>                                |

+// |          Lorenzo Alberton <l.alberton@quipo.it>                      |

+// +----------------------------------------------------------------------+

+//

+// $Id: pgsql.php,v 1.68 2007/11/25 13:38:29 quipo Exp $

+

+require_once 'MDB2/Driver/Reverse/Common.php';

+

+/**

+ * MDB2 PostGreSQL driver for the schema reverse engineering module

+ *

+ * @package  MDB2

+ * @category Database

+ * @author   Paul Cooper <pgc@ucecom.com>

+ * @author   Lorenzo Alberton <l.alberton@quipo.it>

+ */

+class MDB2_Driver_Reverse_pgsql extends MDB2_Driver_Reverse_Common

+{

+    // {{{ getTableFieldDefinition()

+

+    /**

+     * Get the structure of a field into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $field_name name of field that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableFieldDefinition($table_name, $field_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $result = $db->loadModule('Datatype', null, true);

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $query = "SELECT a.attname AS name,

+                         t.typname AS type,

+                         CASE a.attlen

+                           WHEN -1 THEN

+	                         CASE t.typname

+	                           WHEN 'numeric' THEN (a.atttypmod / 65536)

+	                           WHEN 'decimal' THEN (a.atttypmod / 65536)

+	                           WHEN 'money'   THEN (a.atttypmod / 65536)

+	                           ELSE CASE a.atttypmod

+                                 WHEN -1 THEN NULL

+	                             ELSE a.atttypmod - 4

+	                           END

+                             END

+	                       ELSE a.attlen

+                         END AS length,

+	                     CASE t.typname

+	                       WHEN 'numeric' THEN (a.atttypmod % 65536) - 4

+	                       WHEN 'decimal' THEN (a.atttypmod % 65536) - 4

+	                       WHEN 'money'   THEN (a.atttypmod % 65536) - 4

+	                       ELSE 0

+                         END AS scale,

+                         a.attnotnull,

+                         a.atttypmod,

+                         a.atthasdef,

+                         (SELECT substring(pg_get_expr(d.adbin, d.adrelid) for 128)

+                            FROM pg_attrdef d

+                           WHERE d.adrelid = a.attrelid

+                             AND d.adnum = a.attnum

+                             AND a.atthasdef

+                         ) as default

+                    FROM pg_attribute a,

+                         pg_class c,

+                         pg_type t

+                   WHERE c.relname = ".$db->quote($table, 'text')."

+                     AND a.atttypid = t.oid

+                     AND c.oid = a.attrelid

+                     AND NOT a.attisdropped

+                     AND a.attnum > 0

+                     AND a.attname = ".$db->quote($field_name, 'text')."

+                ORDER BY a.attnum";

+        $column = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($column)) {

+            return $column;

+        }

+

+        if (empty($column)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table column', __FUNCTION__);

+        }

+

+        $column = array_change_key_case($column, CASE_LOWER);

+        $mapped_datatype = $db->datatype->mapNativeDatatype($column);

+        if (PEAR::isError($mapped_datatype)) {

+            return $mapped_datatype;

+        }

+        list($types, $length, $unsigned, $fixed) = $mapped_datatype;

+        $notnull = false;

+        if (!empty($column['attnotnull']) && $column['attnotnull'] == 't') {

+            $notnull = true;

+        }

+        $default = null;

+        if ($column['atthasdef'] === 't'

+            && !preg_match("/nextval\('([^']+)'/", $column['default'])

+        ) {

+            $pattern = '/(\'.*\')::[\w ]+$/i';

+            $default = $column['default'];#substr($column['adsrc'], 1, -1);

+            if (is_null($default) && $notnull) {

+                $default = '';

+            } elseif (!empty($default) && preg_match($pattern, $default)) {

+                //remove data type cast

+                $default = preg_replace ($pattern, '\\1', $default);

+            }

+        }

+        $autoincrement = false;

+        if (preg_match("/nextval\('([^']+)'/", $column['default'], $nextvals)) {

+            $autoincrement = true;

+        }

+        $definition[0] = array('notnull' => $notnull, 'nativetype' => $column['type']);

+        if (!is_null($length)) {

+            $definition[0]['length'] = $length;

+        }

+        if (!is_null($unsigned)) {

+            $definition[0]['unsigned'] = $unsigned;

+        }

+        if (!is_null($fixed)) {

+            $definition[0]['fixed'] = $fixed;

+        }

+        if ($default !== false) {

+            $definition[0]['default'] = $default;

+        }

+        if ($autoincrement !== false) {

+            $definition[0]['autoincrement'] = $autoincrement;

+        }

+        foreach ($types as $key => $type) {

+            $definition[$key] = $definition[0];

+            if ($type == 'clob' || $type == 'blob') {

+                unset($definition[$key]['default']);

+            }

+            $definition[$key]['type'] = $type;

+            $definition[$key]['mdb2type'] = $type;

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableIndexDefinition()

+

+    /**

+     * Get the structure of an index into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $index_name name of index that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableIndexDefinition($table_name, $index_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $query = 'SELECT relname, indkey FROM pg_index, pg_class';

+        $query.= ' WHERE pg_class.oid = pg_index.indexrelid';

+        $query.= " AND indisunique != 't' AND indisprimary != 't'";

+        $query.= ' AND pg_class.relname = %s';

+        $index_name_mdb2 = $db->getIndexName($index_name);

+        $row = $db->queryRow(sprintf($query, $db->quote($index_name_mdb2, 'text')), null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($row) || empty($row)) {

+            // fallback to the given $index_name, without transformation

+            $row = $db->queryRow(sprintf($query, $db->quote($index_name, 'text')), null, MDB2_FETCHMODE_ASSOC);

+        }

+        if (PEAR::isError($row)) {

+            return $row;

+        }

+

+        if (empty($row)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table index', __FUNCTION__);

+        }

+

+        $row = array_change_key_case($row, CASE_LOWER);

+

+        $db->loadModule('Manager', null, true);

+        $columns = $db->manager->listTableFields($table_name);

+

+        $definition = array();

+

+        $index_column_numbers = explode(' ', $row['indkey']);

+

+        $colpos = 1;

+        foreach ($index_column_numbers as $number) {

+            $definition['fields'][$columns[($number - 1)]] = array(

+                'position' => $colpos++,

+                'sorting' => 'ascending',

+            );

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableConstraintDefinition()

+

+    /**

+     * Get the structure of a constraint into an array

+     *

+     * @param string $table_name      name of table that should be used in method

+     * @param string $constraint_name name of constraint that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableConstraintDefinition($table_name, $constraint_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $query = "SELECT c.oid,

+                         c.conname AS constraint_name,

+                         CASE WHEN c.contype = 'c' THEN 1 ELSE 0 END AS \"check\",

+                         CASE WHEN c.contype = 'f' THEN 1 ELSE 0 END AS \"foreign\",

+                         CASE WHEN c.contype = 'p' THEN 1 ELSE 0 END AS \"primary\",

+                         CASE WHEN c.contype = 'u' THEN 1 ELSE 0 END AS \"unique\",

+                         CASE WHEN c.condeferrable = 'f' THEN 0 ELSE 1 END AS deferrable,

+                         CASE WHEN c.condeferred = 'f' THEN 0 ELSE 1 END AS initiallydeferred,

+                         --array_to_string(c.conkey, ' ') AS constraint_key,

+                         t.relname AS table_name,

+                         t2.relname AS references_table,

+                         CASE confupdtype

+                           WHEN 'a' THEN 'NO ACTION'

+                           WHEN 'r' THEN 'RESTRICT'

+                           WHEN 'c' THEN 'CASCADE'

+                           WHEN 'n' THEN 'SET NULL'

+                           WHEN 'd' THEN 'SET DEFAULT'

+                         END AS onupdate,

+                         CASE confdeltype

+                           WHEN 'a' THEN 'NO ACTION'

+                           WHEN 'r' THEN 'RESTRICT'

+                           WHEN 'c' THEN 'CASCADE'

+                           WHEN 'n' THEN 'SET NULL'

+                           WHEN 'd' THEN 'SET DEFAULT'

+                         END AS ondelete,

+                         CASE confmatchtype

+                           WHEN 'u' THEN 'UNSPECIFIED'

+                           WHEN 'f' THEN 'FULL'

+                           WHEN 'p' THEN 'PARTIAL'

+                         END AS match,

+                         --array_to_string(c.confkey, ' ') AS fk_constraint_key,

+                         consrc

+                    FROM pg_constraint c

+               LEFT JOIN pg_class t  ON c.conrelid  = t.oid

+               LEFT JOIN pg_class t2 ON c.confrelid = t2.oid

+                   WHERE c.conname = %s

+                    AND t.relname = " . $db->quote($table, 'text');

+        $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+        $row = $db->queryRow(sprintf($query, $db->quote($constraint_name_mdb2, 'text')), null, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($row) || empty($row)) {

+            // fallback to the given $index_name, without transformation

+            $constraint_name_mdb2 = $constraint_name;

+            $row = $db->queryRow(sprintf($query, $db->quote($constraint_name_mdb2, 'text')), null, MDB2_FETCHMODE_ASSOC);

+        }

+        if (PEAR::isError($row)) {

+            return $row;

+        }

+

+        if (empty($row)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+

+        $row = array_change_key_case($row, CASE_LOWER);

+

+        $definition = array(

+            'primary' => (boolean)$row['primary'],

+            'unique'  => (boolean)$row['unique'],

+            'foreign' => (boolean)$row['foreign'],

+            'check'   => (boolean)$row['check'],

+            'fields'  => array(),

+            'references' => array(

+                'table'  => $row['references_table'],

+                'fields' => array(),

+            ),

+            'deferrable' => (boolean)$row['deferrable'],

+            'initiallydeferred' => (boolean)$row['initiallydeferred'],

+            'onupdate' => $row['onupdate'],

+            'ondelete' => $row['ondelete'],

+            'match'    => $row['match'],

+        );

+

+        $query = 'SELECT a.attname

+                    FROM pg_constraint c

+               LEFT JOIN pg_class t  ON c.conrelid  = t.oid

+               LEFT JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = ANY(c.conkey)

+                   WHERE c.conname = %s

+                     AND t.relname = ' . $db->quote($table, 'text');

+        $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+        $fields = $db->queryCol(sprintf($query, $db->quote($constraint_name_mdb2, 'text')), null);

+        if (PEAR::isError($fields)) {

+            return $fields;

+        }

+        $colpos = 1;

+        foreach ($fields as $field) {

+            $definition['fields'][$field] = array(

+                'position' => $colpos++,

+                'sorting' => 'ascending',

+            );

+        }

+        

+        if ($definition['foreign']) {

+            $query = 'SELECT a.attname

+                        FROM pg_constraint c

+                   LEFT JOIN pg_class t  ON c.confrelid  = t.oid

+                   LEFT JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = ANY(c.conkey)

+                       WHERE c.conname = %s

+                         AND t.relname = ' . $db->quote($definition['references']['table'], 'text');

+            $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+            $foreign_fields = $db->queryCol(sprintf($query, $db->quote($constraint_name_mdb2, 'text')), null);

+            if (PEAR::isError($foreign_fields)) {

+                return $foreign_fields;

+            }

+            $colpos = 1;

+            foreach ($foreign_fields as $foreign_field) {

+                $definition['references']['fields'][$foreign_field] = array(

+                    'position' => $colpos++,

+                );

+            }

+        }

+        

+        if ($definition['check']) {

+            $check_def = $db->queryOne("SELECT pg_get_constraintdef(" . $row['oid'] . ", 't')");

+            // ...

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTriggerDefinition()

+

+    /**

+     * Get the structure of a trigger into an array

+     *

+     * EXPERIMENTAL

+     *

+     * WARNING: this function is experimental and may change the returned value

+     * at any time until labelled as non-experimental

+     *

+     * @param string $trigger name of trigger that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     *

+     * @TODO: add support for plsql functions and functions with args

+     */

+    function getTriggerDefinition($trigger)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $query = "SELECT trg.tgname AS trigger_name,

+                         tbl.relname AS table_name,

+                         CASE

+                            WHEN p.proname IS NOT NULL THEN 'EXECUTE PROCEDURE ' || p.proname || '();'

+                            ELSE ''

+                         END AS trigger_body,

+                         CASE trg.tgtype & cast(2 as int2)

+                            WHEN 0 THEN 'AFTER'

+                            ELSE 'BEFORE'

+                         END AS trigger_type,

+                         CASE trg.tgtype & cast(28 as int2)

+                            WHEN 16 THEN 'UPDATE'

+                            WHEN 8 THEN 'DELETE'

+                            WHEN 4 THEN 'INSERT'

+                            WHEN 20 THEN 'INSERT, UPDATE'

+                            WHEN 28 THEN 'INSERT, UPDATE, DELETE'

+                            WHEN 24 THEN 'UPDATE, DELETE'

+                            WHEN 12 THEN 'INSERT, DELETE'

+                         END AS trigger_event,

+                         trg.tgenabled AS trigger_enabled,

+                         obj_description(trg.oid, 'pg_trigger') AS trigger_comment

+                    FROM pg_trigger trg,

+                         pg_class tbl,

+                         pg_proc p

+                   WHERE trg.tgrelid = tbl.oid

+                     AND trg.tgfoid = p.oid

+                     AND trg.tgname = ". $db->quote($trigger, 'text');

+        $types = array(

+            'trigger_name'    => 'text',

+            'table_name'      => 'text',

+            'trigger_body'    => 'text',

+            'trigger_type'    => 'text',

+            'trigger_event'   => 'text',

+            'trigger_comment' => 'text',

+            'trigger_enabled' => 'boolean',

+        );

+        return $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);

+    }

+    

+    // }}}

+    // {{{ tableInfo()

+

+    /**

+     * Returns information about a table or a result set

+     *

+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>

+     * is a table name.

+     *

+     * @param object|string  $result  MDB2_result object from a query or a

+     *                                 string containing the name of a table.

+     *                                 While this also accepts a query result

+     *                                 resource identifier, this behavior is

+     *                                 deprecated.

+     * @param int            $mode    a valid tableInfo mode

+     *

+     * @return array  an associative array with the information requested.

+     *                 A MDB2_Error object on failure.

+     *

+     * @see MDB2_Driver_Common::tableInfo()

+     */

+    function tableInfo($result, $mode = null)

+    {

+        if (is_string($result)) {

+           return parent::tableInfo($result, $mode);

+        }

+

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;

+        if (!is_resource($resource)) {

+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,

+                'Could not generate result resource', __FUNCTION__);

+        }

+

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            if ($db->options['field_case'] == CASE_LOWER) {

+                $case_func = 'strtolower';

+            } else {

+                $case_func = 'strtoupper';

+            }

+        } else {

+            $case_func = 'strval';

+        }

+

+        $count = @pg_num_fields($resource);

+        $res   = array();

+

+        if ($mode) {

+            $res['num_fields'] = $count;

+        }

+

+        $db->loadModule('Datatype', null, true);

+        for ($i = 0; $i < $count; $i++) {

+            $res[$i] = array(

+                'table' => function_exists('pg_field_table') ? @pg_field_table($resource, $i) : '',

+                'name'  => $case_func(@pg_field_name($resource, $i)),

+                'type'  => @pg_field_type($resource, $i),

+                'length' => @pg_field_size($resource, $i),

+                'flags' => '',

+            );

+            $mdb2type_info = $db->datatype->mapNativeDatatype($res[$i]);

+            if (PEAR::isError($mdb2type_info)) {

+               return $mdb2type_info;

+            }

+            $res[$i]['mdb2type'] = $mdb2type_info[0][0];

+            if ($mode & MDB2_TABLEINFO_ORDER) {

+                $res['order'][$res[$i]['name']] = $i;

+            }

+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {

+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;

+            }

+        }

+

+        return $res;

+    }

+}

+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Reverse/sqlite.php b/program/lib/MDB2/Driver/Reverse/sqlite.php
new file mode 100644
index 000000000..2ba81c7c5
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/sqlite.php
@@ -0,0 +1,573 @@
+<?php

+// +----------------------------------------------------------------------+

+// | PHP versions 4 and 5                                                 |

+// +----------------------------------------------------------------------+

+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |

+// | Stig. S. Bakken, Lukas Smith, Lorenzo Alberton                       |

+// | All rights reserved.                                                 |

+// +----------------------------------------------------------------------+

+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |

+// | API as well as database abstraction for PHP applications.            |

+// | This LICENSE is in the BSD license style.                            |

+// |                                                                      |

+// | Redistribution and use in source and binary forms, with or without   |

+// | modification, are permitted provided that the following conditions   |

+// | are met:                                                             |

+// |                                                                      |

+// | Redistributions of source code must retain the above copyright       |

+// | notice, this list of conditions and the following disclaimer.        |

+// |                                                                      |

+// | Redistributions in binary form must reproduce the above copyright    |

+// | notice, this list of conditions and the following disclaimer in the  |

+// | documentation and/or other materials provided with the distribution. |

+// |                                                                      |

+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |

+// | Lukas Smith nor the names of his contributors may be used to endorse |

+// | or promote products derived from this software without specific prior|

+// | written permission.                                                  |

+// |                                                                      |

+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |

+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |

+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |

+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |

+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |

+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |

+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|

+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |

+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |

+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|

+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |

+// | POSSIBILITY OF SUCH DAMAGE.                                          |

+// +----------------------------------------------------------------------+

+// | Authors: Lukas Smith <smith@pooteeweet.org>                          |

+// |          Lorenzo Alberton <l.alberton@quipo.it>                      |

+// +----------------------------------------------------------------------+

+//

+// $Id: sqlite.php,v 1.78 2007/12/01 10:46:13 quipo Exp $

+//

+

+require_once 'MDB2/Driver/Reverse/Common.php';

+

+/**

+ * MDB2 SQlite driver for the schema reverse engineering module

+ *

+ * @package MDB2

+ * @category Database

+ * @author  Lukas Smith <smith@pooteeweet.org>

+ */

+class MDB2_Driver_Reverse_sqlite extends MDB2_Driver_Reverse_Common

+{

+    function _getTableColumns($sql)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        $start_pos  = strpos($sql, '(');

+        $end_pos    = strrpos($sql, ')');

+        $column_def = substr($sql, $start_pos+1, $end_pos-$start_pos-1);

+        // replace the decimal length-places-separator with a colon

+        $column_def = preg_replace('/(\d),(\d)/', '\1:\2', $column_def);

+        $column_sql = split(',', $column_def);

+        $columns    = array();

+        $count      = count($column_sql);

+        if ($count == 0) {

+            return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,

+                'unexpected empty table column definition list', __FUNCTION__);

+        }

+        $regexp = '/^\s*([^\s]+) +(CHAR|VARCHAR|VARCHAR2|TEXT|BOOLEAN|SMALLINT|INT|INTEGER|DECIMAL|BIGINT|DOUBLE|FLOAT|DATETIME|DATE|TIME|LONGTEXT|LONGBLOB)( ?\(([1-9][0-9]*)(:([1-9][0-9]*))?\))?( UNSIGNED)?( PRIMARY KEY)?( DEFAULT (\'[^\']*\'|[^ ]+))?( NULL| NOT NULL)?( PRIMARY KEY)?$/i';

+        $regexp2 = '/^\s*([^ ]+) +(PRIMARY|UNIQUE|CHECK)$/i';

+        for ($i=0, $j=0; $i<$count; ++$i) {

+            if (!preg_match($regexp, trim($column_sql[$i]), $matches)) {

+                if (!preg_match($regexp2, trim($column_sql[$i]))) {

+                    continue;

+                }

+                return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,

+                    'unexpected table column SQL definition: "'.$column_sql[$i].'"', __FUNCTION__);

+            }

+            $columns[$j]['name'] = trim($matches[1], implode('', $db->identifier_quoting));

+            $columns[$j]['type'] = strtolower($matches[2]);

+            if (isset($matches[4]) && strlen($matches[4])) {

+                $columns[$j]['length'] = $matches[4];

+            }

+            if (isset($matches[6]) && strlen($matches[6])) {

+                $columns[$j]['decimal'] = $matches[6];

+            }

+            if (isset($matches[7]) && strlen($matches[7])) {

+                $columns[$j]['unsigned'] = true;

+            }

+            if (isset($matches[8]) && strlen($matches[8])) {

+                $columns[$j]['autoincrement'] = true;

+            }

+            if (isset($matches[10]) && strlen($matches[10])) {

+                $default = $matches[10];

+                if (strlen($default) && $default[0]=="'") {

+                    $default = str_replace("''", "'", substr($default, 1, strlen($default)-2));

+                }

+                if ($default === 'NULL') {

+                    $default = null;

+                }

+                $columns[$j]['default'] = $default;

+            }

+            if (isset($matches[11]) && strlen($matches[11])) {

+                $columns[$j]['notnull'] = ($matches[11] === ' NOT NULL');

+            }

+            ++$j;

+        }

+        return $columns;

+    }

+

+    // {{{ getTableFieldDefinition()

+

+    /**

+     * Get the stucture of a field into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $field_name name of field that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure.

+     *          The returned array contains an array for each field definition,

+     *          with (some of) these indices:

+     *          [notnull] [nativetype] [length] [fixed] [default] [type] [mdb2type]

+     * @access public

+     */

+    function getTableFieldDefinition($table_name, $field_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $result = $db->loadModule('Datatype', null, true);

+        if (PEAR::isError($result)) {

+            return $result;

+        }

+        $query = "SELECT sql FROM sqlite_master WHERE type='table' AND ";

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $query.= 'LOWER(name)='.$db->quote(strtolower($table), 'text');

+        } else {

+            $query.= 'name='.$db->quote($table, 'text');

+        }

+        $sql = $db->queryOne($query);

+        if (PEAR::isError($sql)) {

+            return $sql;

+        }

+        $columns = $this->_getTableColumns($sql);

+        foreach ($columns as $column) {

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                if ($db->options['field_case'] == CASE_LOWER) {

+                    $column['name'] = strtolower($column['name']);

+                } else {

+                    $column['name'] = strtoupper($column['name']);

+                }

+            } else {

+                $column = array_change_key_case($column, $db->options['field_case']);

+            }

+            if ($field_name == $column['name']) {

+                $mapped_datatype = $db->datatype->mapNativeDatatype($column);

+                if (PEAR::isError($mapped_datatype)) {

+                    return $mapped_datatype;

+                }

+                list($types, $length, $unsigned, $fixed) = $mapped_datatype;

+                $notnull = false;

+                if (!empty($column['notnull'])) {

+                    $notnull = $column['notnull'];

+                }

+                $default = false;

+                if (array_key_exists('default', $column)) {

+                    $default = $column['default'];

+                    if (is_null($default) && $notnull) {

+                        $default = '';

+                    }

+                }

+                $autoincrement = false;

+                if (!empty($column['autoincrement'])) {

+                    $autoincrement = true;

+                }

+

+                $definition[0] = array(

+                    'notnull' => $notnull,

+                    'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type'])

+                );

+                if (!is_null($length)) {

+                    $definition[0]['length'] = $length;

+                }

+                if (!is_null($unsigned)) {

+                    $definition[0]['unsigned'] = $unsigned;

+                }

+                if (!is_null($fixed)) {

+                    $definition[0]['fixed'] = $fixed;

+                }

+                if ($default !== false) {

+                    $definition[0]['default'] = $default;

+                }

+                if ($autoincrement !== false) {

+                    $definition[0]['autoincrement'] = $autoincrement;

+                }

+                foreach ($types as $key => $type) {

+                    $definition[$key] = $definition[0];

+                    if ($type == 'clob' || $type == 'blob') {

+                        unset($definition[$key]['default']);

+                    }

+                    $definition[$key]['type'] = $type;

+                    $definition[$key]['mdb2type'] = $type;

+                }

+                return $definition;

+            }

+        }

+

+        return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+            'it was not specified an existing table column', __FUNCTION__);

+    }

+

+    // }}}

+    // {{{ getTableIndexDefinition()

+

+    /**

+     * Get the stucture of an index into an array

+     *

+     * @param string $table_name name of table that should be used in method

+     * @param string $index_name name of index that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableIndexDefinition($table_name, $index_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $query = "SELECT sql FROM sqlite_master WHERE type='index' AND ";

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $query.= 'LOWER(name)=%s AND LOWER(tbl_name)=' . $db->quote(strtolower($table), 'text');

+        } else {

+            $query.= 'name=%s AND tbl_name=' . $db->quote($table, 'text');

+        }

+        $query.= ' AND sql NOT NULL ORDER BY name';

+        $index_name_mdb2 = $db->getIndexName($index_name);

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $qry = sprintf($query, $db->quote(strtolower($index_name_mdb2), 'text'));

+        } else {

+            $qry = sprintf($query, $db->quote($index_name_mdb2, 'text'));

+        }

+        $sql = $db->queryOne($qry, 'text');

+        if (PEAR::isError($sql) || empty($sql)) {

+            // fallback to the given $index_name, without transformation

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                $qry = sprintf($query, $db->quote(strtolower($index_name), 'text'));

+            } else {

+                $qry = sprintf($query, $db->quote($index_name, 'text'));

+            }

+            $sql = $db->queryOne($qry, 'text');

+        }

+        if (PEAR::isError($sql)) {

+            return $sql;

+        }

+        if (!$sql) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table index', __FUNCTION__);

+        }

+

+        $sql = strtolower($sql);

+        $start_pos = strpos($sql, '(');

+        $end_pos = strrpos($sql, ')');

+        $column_names = substr($sql, $start_pos+1, $end_pos-$start_pos-1);

+        $column_names = split(',', $column_names);

+

+        if (preg_match("/^create unique/", $sql)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table index', __FUNCTION__);

+        }

+

+        $definition = array();

+        $count = count($column_names);

+        for ($i=0; $i<$count; ++$i) {

+            $column_name = strtok($column_names[$i], ' ');

+            $collation = strtok(' ');

+            $definition['fields'][$column_name] = array(

+                'position' => $i+1

+            );

+            if (!empty($collation)) {

+                $definition['fields'][$column_name]['sorting'] =

+                    ($collation=='ASC' ? 'ascending' : 'descending');

+            }

+        }

+

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing table index', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTableConstraintDefinition()

+

+    /**

+     * Get the stucture of a constraint into an array

+     *

+     * @param string $table_name      name of table that should be used in method

+     * @param string $constraint_name name of constraint that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTableConstraintDefinition($table_name, $constraint_name)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+        

+        list($schema, $table) = $this->splitTableSchema($table_name);

+

+        $query = "SELECT sql FROM sqlite_master WHERE type='index' AND ";

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $query.= 'LOWER(name)=%s AND LOWER(tbl_name)=' . $db->quote(strtolower($table), 'text');

+        } else {

+            $query.= 'name=%s AND tbl_name=' . $db->quote($table, 'text');

+        }

+        $query.= ' AND sql NOT NULL ORDER BY name';

+        $constraint_name_mdb2 = $db->getIndexName($constraint_name);

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $qry = sprintf($query, $db->quote(strtolower($constraint_name_mdb2), 'text'));

+        } else {

+            $qry = sprintf($query, $db->quote($constraint_name_mdb2, 'text'));

+        }

+        $sql = $db->queryOne($qry, 'text');

+        if (PEAR::isError($sql) || empty($sql)) {

+            // fallback to the given $index_name, without transformation

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                $qry = sprintf($query, $db->quote(strtolower($constraint_name), 'text'));

+            } else {

+                $qry = sprintf($query, $db->quote($constraint_name, 'text'));

+            }

+            $sql = $db->queryOne($qry, 'text');

+        }

+        if (PEAR::isError($sql)) {

+            return $sql;

+        }

+        //default values, eventually overridden

+        $definition = array(

+            'primary' => false,

+            'unique'  => false,

+            'foreign' => false,

+            'check'   => false,

+            'fields'  => array(),

+            'references' => array(

+                'table'  => '',

+                'fields' => array(),

+            ),

+            'onupdate'  => '',

+            'ondelete'  => '',

+            'match'     => '',

+            'deferrable'        => false,

+            'initiallydeferred' => false,

+        );

+        if (!$sql) {

+            $query = "SELECT sql FROM sqlite_master WHERE type='table' AND ";

+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+                $query.= 'LOWER(name)='.$db->quote(strtolower($table), 'text');

+            } else {

+                $query.= 'name='.$db->quote($table, 'text');

+            }

+            $query.= " AND sql NOT NULL ORDER BY name";

+            $sql = $db->queryOne($query, 'text');

+            if (PEAR::isError($sql)) {

+                return $sql;

+            }

+            if ($constraint_name == 'primary') {

+                // search in table definition for PRIMARY KEYs

+                if (preg_match("/\bPRIMARY\s+KEY\b\s*\(([^)]+)/i", $sql, $tmp)) {

+                    $definition['primary'] = true;

+                    $definition['fields'] = array();

+                    $column_names = split(',', $tmp[1]);

+                    $colpos = 1;

+                    foreach ($column_names as $column_name) {

+                        $definition['fields'][trim($column_name)] = array(

+                            'position' => $colpos++

+                        );

+                    }

+                    return $definition;

+                }

+            } else {

+                // search in table definition for FOREIGN KEYs

+                $pattern = "/\bCONSTRAINT\b\s+%s\s+

+                    \bFOREIGN\s+KEY\b\s*\(([^\)]+)\)\s*

+                    \bREFERENCES\b\s+([^\s]+)\s*\(([^\)]+)\)\s*

+                    (?:\bMATCH\s*([^\s]+))?\s*

+                    (?:\bON\s+UPDATE\s+([^\s,\)]+))?\s*

+                    (?:\bON\s+DELETE\s+([^\s,\)]+))?\s*

+                    /imsx";

+                $found_fk = false;

+                if (preg_match(sprintf($pattern, $constraint_name_mdb2), $sql, $tmp)) {

+                    $found_fk = true;

+                } elseif (preg_match(sprintf($pattern, $constraint_name), $sql, $tmp)) {

+                    $found_fk = true;

+                }

+                if ($found_fk) {

+                    $definition['foreign'] = true;

+                    $definition['match'] = 'SIMPLE';

+                    $definition['onupdate'] = 'NO ACTION';

+                    $definition['ondelete'] = 'NO ACTION';

+                    $definition['references']['table'] = $tmp[2];

+                    $column_names = split(',', $tmp[1]);

+                    $colpos = 1;

+                    foreach ($column_names as $column_name) {

+                        $definition['fields'][trim($column_name)] = array(

+                            'position' => $colpos++

+                        );

+                    }

+                    $referenced_cols = split(',', $tmp[3]);

+                    $colpos = 1;

+                    foreach ($referenced_cols as $column_name) {

+                        $definition['references']['fields'][trim($column_name)] = array(

+                            'position' => $colpos++

+                        );

+                    }

+                    if (isset($tmp[4])) {

+                        $definition['match']    = $tmp[4];

+                    }

+                    if (isset($tmp[5])) {

+                        $definition['onupdate'] = $tmp[5];

+                    }

+                    if (isset($tmp[6])) {

+                        $definition['ondelete'] = $tmp[6];

+                    }

+                    return $definition;

+                }

+            }

+            $sql = false;

+        }

+        if (!$sql) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+

+        $sql = strtolower($sql);

+        $start_pos = strpos($sql, '(');

+        $end_pos   = strrpos($sql, ')');

+        $column_names = substr($sql, $start_pos+1, $end_pos-$start_pos-1);

+        $column_names = split(',', $column_names);

+

+        if (!preg_match("/^create unique/", $sql)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+

+        $definition['unique'] = true;

+        $count = count($column_names);

+        for ($i=0; $i<$count; ++$i) {

+            $column_name = strtok($column_names[$i]," ");

+            $collation = strtok(" ");

+            $definition['fields'][$column_name] = array(

+                'position' => $i+1

+            );

+            if (!empty($collation)) {

+                $definition['fields'][$column_name]['sorting'] =

+                    ($collation=='ASC' ? 'ascending' : 'descending');

+            }

+        }

+

+        if (empty($definition['fields'])) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                $constraint_name . ' is not an existing table constraint', __FUNCTION__);

+        }

+        return $definition;

+    }

+

+    // }}}

+    // {{{ getTriggerDefinition()

+

+    /**

+     * Get the structure of a trigger into an array

+     *

+     * EXPERIMENTAL

+     *

+     * WARNING: this function is experimental and may change the returned value

+     * at any time until labelled as non-experimental

+     *

+     * @param string    $trigger    name of trigger that should be used in method

+     * @return mixed data array on success, a MDB2 error on failure

+     * @access public

+     */

+    function getTriggerDefinition($trigger)

+    {

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        $query = "SELECT name as trigger_name,

+                         tbl_name AS table_name,

+                         sql AS trigger_body,

+                         NULL AS trigger_type,

+                         NULL AS trigger_event,

+                         NULL AS trigger_comment,

+                         1 AS trigger_enabled

+                    FROM sqlite_master

+                   WHERE type='trigger'";

+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {

+            $query.= ' AND LOWER(name)='.$db->quote(strtolower($trigger), 'text');

+        } else {

+            $query.= ' AND name='.$db->quote($trigger, 'text');

+        }

+        $types = array(

+            'trigger_name'    => 'text',

+            'table_name'      => 'text',

+            'trigger_body'    => 'text',

+            'trigger_type'    => 'text',

+            'trigger_event'   => 'text',

+            'trigger_comment' => 'text',

+            'trigger_enabled' => 'boolean',

+        );

+        $def = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);

+        if (PEAR::isError($def)) {

+            return $def;

+        }

+        if (empty($def)) {

+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,

+                'it was not specified an existing trigger', __FUNCTION__);

+        }

+        if (preg_match("/^create\s+(?:temp|temporary)?trigger\s+(?:if\s+not\s+exists\s+)?.*(before|after)?\s+(insert|update|delete)/Uims", $def['trigger_body'], $tmp)) {

+            $def['trigger_type'] = strtoupper($tmp[1]);

+            $def['trigger_event'] = strtoupper($tmp[2]);

+        }

+        return $def;

+    }

+

+    // }}}

+    // {{{ tableInfo()

+

+    /**

+     * Returns information about a table

+     *

+     * @param string         $result  a string containing the name of a table

+     * @param int            $mode    a valid tableInfo mode

+     *

+     * @return array  an associative array with the information requested.

+     *                 A MDB2_Error object on failure.

+     *

+     * @see MDB2_Driver_Common::tableInfo()

+     * @since Method available since Release 1.7.0

+     */

+    function tableInfo($result, $mode = null)

+    {

+        if (is_string($result)) {

+           return parent::tableInfo($result, $mode);

+        }

+

+        $db =& $this->getDBInstance();

+        if (PEAR::isError($db)) {

+            return $db;

+        }

+

+        return $db->raiseError(MDB2_ERROR_NOT_CAPABLE, null, null,

+           'This DBMS can not obtain tableInfo from result sets', __FUNCTION__);

+    }

+}

+

+?>
\ No newline at end of file