611 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
		
		
			
		
	
	
			611 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
|   | <?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>                           |
 | ||
|  | // +----------------------------------------------------------------------+
 | ||
|  | //
 | ||
|  | // $Id$
 | ||
|  | //
 | ||
|  | 
 | ||
|  | 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 = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($db)) { | ||
|  |             return $db; | ||
|  |         } | ||
|  | 
 | ||
|  |         $result = $db->loadModule('Datatype', null, true); | ||
|  |         if (MDB2::isError($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 (MDB2::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 (MDB2::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 ((null === $default) && $notnull) { | ||
|  |                         $default = ''; | ||
|  |                     } | ||
|  |                 } | ||
|  |                 $definition[0] = array( | ||
|  |                     'notnull' => $notnull, | ||
|  |                     'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type']) | ||
|  |                 ); | ||
|  |                 $autoincrement = false; | ||
|  |                 if (!empty($column['extra'])) { | ||
|  |                     if ($column['extra'] == 'auto_increment') { | ||
|  |                         $autoincrement = true; | ||
|  |                     } else { | ||
|  |                         $definition[0]['extra'] = $column['extra']; | ||
|  |                     } | ||
|  |                 } | ||
|  |                 $collate = null; | ||
|  |                 if (!empty($column['collation'])) { | ||
|  |                     $collate = $column['collation']; | ||
|  |                     $charset = preg_replace('/(.+?)(_.+)?/', '$1', $collate); | ||
|  |                 } | ||
|  | 
 | ||
|  |                 if (null !== $length) { | ||
|  |                     $definition[0]['length'] = $length; | ||
|  |                 } | ||
|  |                 if (null !== $unsigned) { | ||
|  |                     $definition[0]['unsigned'] = $unsigned; | ||
|  |                 } | ||
|  |                 if (null !== $fixed) { | ||
|  |                     $definition[0]['fixed'] = $fixed; | ||
|  |                 } | ||
|  |                 if ($default !== false) { | ||
|  |                     $definition[0]['default'] = $default; | ||
|  |                 } | ||
|  |                 if ($autoincrement !== false) { | ||
|  |                     $definition[0]['autoincrement'] = $autoincrement; | ||
|  |                 } | ||
|  |                 if (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 = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($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 (!MDB2::isError($result) && (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 (MDB2::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 = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($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 (!MDB2::isError($result) && (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 (MDB2::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?
 | ||
|  |                     return $this->_getTableFKConstraintDefinition($table, $constraint_name_original, $definition); | ||
|  |                 } | ||
|  |                 if ($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 $this->_getTableFKConstraintDefinition($table, $constraint_name_original, $definition); | ||
|  |         } | ||
|  |         return $definition; | ||
|  |     } | ||
|  | 
 | ||
|  |     // }}}
 | ||
|  |     // {{{ _getTableFKConstraintDefinition()
 | ||
|  | 
 | ||
|  |     /** | ||
|  |      * Get the FK definition from the CREATE TABLE statement | ||
|  |      * | ||
|  |      * @param string $table           table name | ||
|  |      * @param string $constraint_name constraint name | ||
|  |      * @param array  $definition      default values for constraint definition | ||
|  |      * | ||
|  |      * @return array|PEAR_Error | ||
|  |      * @access private | ||
|  |      */ | ||
|  |     function _getTableFKConstraintDefinition($table, $constraint_name, $definition) | ||
|  |     { | ||
|  |         $db = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($db)) { | ||
|  |             return $db; | ||
|  |         } | ||
|  |         //Use INFORMATION_SCHEMA instead?
 | ||
|  |         //SELECT *
 | ||
|  |         //  FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
 | ||
|  |         // WHERE CONSTRAINT_SCHEMA = '$dbname'
 | ||
|  |         //   AND TABLE_NAME = '$table'
 | ||
|  |         //   AND CONSTRAINT_NAME = '$constraint_name';
 | ||
|  |         $query = 'SHOW CREATE TABLE '. $db->escape($table); | ||
|  |         $constraint = $db->queryOne($query, 'text', 1); | ||
|  |         if (!MDB2::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); | ||
|  |                 } | ||
|  |             } | ||
|  |             $constraint_name_original = $constraint_name; | ||
|  |             $constraint_name = $db->getIndexName($constraint_name); | ||
|  |             $pattern = '/\bCONSTRAINT\s+'.$constraint_name.'\s+FOREIGN KEY\s+\(([^\)]+)\) \bREFERENCES\b ([^\s]+) \(([^\)]+)\)(?: ON DELETE ([^\s]+))?(?: ON UPDATE ([^\s]+))?/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 ([^\s]+) \(([^\)]+)\)(?: ON DELETE ([^\s]+))?(?: ON UPDATE ([^\s]+))?/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++ | ||
|  |                     ); | ||
|  |                 } | ||
|  |                 $definition['ondelete'] = empty($matches[4]) ? 'RESTRICT' : strtoupper($matches[4]); | ||
|  |                 $definition['onupdate'] = empty($matches[5]) ? 'RESTRICT' : strtoupper($matches[5]); | ||
|  |                 $definition['match']    = 'SIMPLE'; | ||
|  |                 return $definition; | ||
|  |             } | ||
|  |         } | ||
|  |         return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null, | ||
|  |                 $constraint_name . ' is not an existing table constraint', __FUNCTION__); | ||
|  |     } | ||
|  | 
 | ||
|  |     // }}}
 | ||
|  |     // {{{ 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 = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($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, $types, MDB2_FETCHMODE_ASSOC); | ||
|  |         if (MDB2::isError($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 = $this->getDBInstance(); | ||
|  |         if (MDB2::isError($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[$i]); | ||
|  |             if (MDB2::isError($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; | ||
|  |     } | ||
|  | } | ||
|  | ?>
 |