added all mdb2 drivers

1 files changed, 356 insertions, 0 deletions

diff --git a/program/lib/MDB2/Driver/Reverse/pgsql.php b/program/lib/MDB2/Driver/Reverse/pgsql.php
new file mode 100755
index 000000000..28629eed0
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/pgsql.php
@@ -0,0 +1,356 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2004 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: Paul Cooper <pgc@ucecom.com>                                 |
+// +----------------------------------------------------------------------+
+//
+// $Id$
+
+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>
+ */
+class MDB2_Driver_Reverse_pgsql extends MDB2_Driver_Reverse_Common
+{
+    // {{{ getTableFieldDefinition()
+
+    /**
+     * get the stucture of a field into an array
+     *
+     * @param string    $table         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, $field_name)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $result = $db->loadModule('Datatype');
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+
+        $column = $db->queryRow("SELECT
+                    attnum,attname,typname,attlen,attnotnull,
+                    atttypmod,usename,usesysid,pg_class.oid,relpages,
+                    reltuples,relhaspkey,relhasrules,relacl,adsrc
+                    FROM pg_class,pg_user,pg_type,
+                         pg_attribute left outer join pg_attrdef on
+                         pg_attribute.attrelid=pg_attrdef.adrelid
+                    WHERE (pg_class.relname='$table')
+                        and (pg_class.oid=pg_attribute.attrelid)
+                        and (pg_class.relowner=pg_user.usesysid)
+                        and (pg_attribute.atttypid=pg_type.oid)
+                        and attnum > 0
+                        and attname = '$field_name'
+                        ORDER BY attnum
+                        ", null, MDB2_FETCHMODE_ASSOC);
+        if (PEAR::isError($column)) {
+            return $column;
+        }
+
+        list($types, $length) = $db->datatype->mapNativeDatatype($column);
+        $notnull = false;
+        if (array_key_exists('attnotnull', $column) && $column['attnotnull'] == 't') {
+            $notnull = true;
+        }
+        $default = false;
+        // todo .. check how default look like
+        if (!preg_match("/nextval\('([^']+)'/", $column['adsrc'])
+            && strlen($column['adsrc']) > 2
+        ) {
+            $default = substr($column['adsrc'], 1, -1);
+            if (is_null($default) && $notnull) {
+                $default = '';
+            }
+        }
+        $autoincrement = false;
+        if (preg_match("/nextval\('([^']+)'/", $column['adsrc'], $nextvals)) {
+            $autoincrement = true;
+        }
+        $definition = array();
+        foreach ($types as $key => $type) {
+            $definition[$key] = array(
+                'type' => $type,
+                'notnull' => $notnull,
+            );
+            if ($length > 0) {
+                $definition[$key]['length'] = $length;
+            }
+            if ($default !== false) {
+                $definition[$key]['default'] = $default;
+            }
+            if ($autoincrement !== false) {
+                $definition[$key]['autoincrement'] = $autoincrement;
+            }
+        }
+        return $definition;
+    }
+
+
+    // }}}
+    // {{{ getTableIndexDefinition()
+    /**
+     * get the stucture of an index into an array
+     *
+     * @param string    $table      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, $index_name)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = "SELECT * FROM pg_index, pg_class
+            WHERE (pg_class.relname='$index_name') AND (pg_class.oid=pg_index.indexrelid)";
+        $row = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);
+        if (PEAR::isError($row)) {
+            return $row;
+        }
+        if ($row['relname'] != $index_name) {
+            return $db->raiseError(MDB2_ERROR, null, null,
+                'getTableIndexDefinition: it was not specified an existing table index');
+        }
+
+        $db->loadModule('Manager');
+        $columns = $db->manager->listTableFields($table);
+
+        $definition = array();
+        if ($row['indisunique'] == 't') {
+            $definition['unique'] = true;
+        }
+
+        $index_column_numbers = explode(' ', $row['indkey']);
+
+        foreach ($index_column_numbers as $number) {
+            $definition['fields'][$columns[($number - 1)]] = array('sorting' => 'ascending');
+        }
+        return $definition;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$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)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = $db->_doQuery("SELECT * FROM $result LIMIT 0");
+            if (PEAR::isError($id)) {
+                return $id;
+            }
+            $got_string = true;
+        } elseif (MDB2::isResultCommon($result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->getResource();
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($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';
+        }
+
+        $count = @pg_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@pg_field_name($id, $i)),
+                'type'  => @pg_field_type($id, $i),
+                'len'   => @pg_field_size($id, $i),
+                'flags' => $got_string
+                           ? $this->_pgFieldFlags($id, $i, $result)
+                           : '',
+            );
+            if ($mode & MDB2_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @pg_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _pgFieldFlags()
+
+    /**
+     * Get a column's flags
+     *
+     * Supports "not_null", "default_value", "primary_key", "unique_key"
+     * and "multiple_key".  The default value is passed through
+     * rawurlencode() in case there are spaces in it.
+     *
+     * @param int $resource   the PostgreSQL result identifier
+     * @param int $num_field  the field number
+     *
+     * @return string  the flags
+     *
+     * @access protected
+     */
+    function _pgFieldFlags($resource, $num_field, $table_name)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $field_name = @pg_field_name($resource, $num_field);
+
+        $result = @pg_query($db->connection, "SELECT f.attnotnull, f.atthasdef
+                                FROM pg_attribute f, pg_class tab, pg_type typ
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        if (@pg_num_rows($result) > 0) {
+            $row = @pg_fetch_row($result, 0);
+            $flags  = ($row[0] == 't') ? 'not_null ' : '';
+
+            if ($row[1] == 't') {
+                $result = @pg_query($db->connection, "SELECT a.adsrc
+                                    FROM pg_attribute f, pg_class tab, pg_type typ, pg_attrdef a
+                                    WHERE tab.relname = typ.typname AND typ.typrelid = f.attrelid
+                                    AND f.attrelid = a.adrelid AND f.attname = '$field_name'
+                                    AND tab.relname = '$table_name' AND f.attnum = a.adnum");
+                $row = @pg_fetch_row($result, 0);
+                $num = preg_replace("/'(.*)'::\w+/", "\\1", $row[0]);
+                $flags.= 'default_' . rawurlencode($num) . ' ';
+            }
+        } else {
+            $flags = '';
+        }
+        $result = @pg_query($db->connection, "SELECT i.indisunique, i.indisprimary, i.indkey
+                                FROM pg_attribute f, pg_class tab, pg_type typ, pg_index i
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attrelid = i.indrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        $count = @pg_num_rows($result);
+
+        for ($i = 0; $i < $count ; $i++) {
+            $row = @pg_fetch_row($result, $i);
+            $keys = explode(' ', $row[2]);
+
+            if (in_array($num_field + 1, $keys)) {
+                $flags.= ($row[0] == 't' && $row[1] == 'f') ? 'unique_key ' : '';
+                $flags.= ($row[1] == 't') ? 'primary_key ' : '';
+                if (count($keys) > 1)
+                    $flags.= 'multiple_key ';
+            }
+        }
+
+        return trim($flags);
+    }
+}
+?>
\ No newline at end of file