diff options
| author | till <till@php.net> | 2008-02-03 12:58:34 +0000 |
|---|---|---|
| committer | till <till@php.net> | 2008-02-03 12:58:34 +0000 |
| commit | 95ebbc985a0e64a364e880de89dbc1ae7952d91e (patch) | |
| tree | 78474efc88790b6d88e4976b51c7bebb5d017a37 /program/lib/MDB2/Driver/Reverse/sqlite.php | |
| parent | 9f5bd376b47f41924ede3d8136302d0f7b81c89f (diff) | |
* putting latest MDB2 into SVN
* adding MDB2 drivers for mssql, mysql, mysqli, pgsql, sqlite
Diffstat (limited to 'program/lib/MDB2/Driver/Reverse/sqlite.php')
| -rw-r--r-- | program/lib/MDB2/Driver/Reverse/sqlite.php | 573 |
1 files changed, 573 insertions, 0 deletions
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__);
+ }
+}
+
+?>
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