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@ -2,7 +2,7 @@
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// +----------------------------------------------------------------------+
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// | PHP versions 4 and 5 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
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// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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@ -42,7 +42,7 @@
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// | Author: Lukas Smith <smith@pooteeweet.org> |
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// +----------------------------------------------------------------------+
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//
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// $Id: mysqli.php,v 1.87 2007/12/03 20:59:15 quipo Exp $
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// $Id: mysqli.php,v 1.95 2008/03/11 19:58:12 quipo Exp $
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//
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require_once 'MDB2/Driver/Manager/Common.php';
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@ -79,16 +79,41 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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$name = $db->quoteIdentifier($name, true);
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$query = 'CREATE DATABASE ' . $name;
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if (!empty($options['charset'])) {
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$query .= ' DEFAULT CHARACTER SET ' . $options['charset'];
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$query .= ' DEFAULT CHARACTER SET ' . $db->quote($options['charset'], 'text');
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}
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if (!empty($options['collation'])) {
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$query .= ' COLLATE ' . $options['collation'];
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$query .= ' COLLATE ' . $db->quote($options['collation'], 'text');
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}
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$result = $db->exec($query);
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if (PEAR::isError($result)) {
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return $result;
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return $db->standaloneQuery($query, null, true);
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}
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return MDB2_OK;
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// }}}
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// {{{ alterDatabase()
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/**
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* alter an existing database
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*
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* @param string $name name of the database that is intended to be changed
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* @param array $options array with charset, collation info
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function alterDatabase($name, $options = array())
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$query = 'ALTER DATABASE '. $db->quoteIdentifier($name, true);
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if (!empty($options['charset'])) {
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$query .= ' DEFAULT CHARACTER SET ' . $db->quote($options['charset'], 'text');
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}
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if (!empty($options['collation'])) {
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$query .= ' COLLATE ' . $db->quote($options['collation'], 'text');
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}
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return $db->standaloneQuery($query, null, true);
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}
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// }}}
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@ -110,11 +135,7 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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$name = $db->quoteIdentifier($name, true);
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$query = "DROP DATABASE $name";
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$result = $db->exec($query);
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if (PEAR::isError($result)) {
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return $result;
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}
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return MDB2_OK;
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return $db->standaloneQuery($query, null, true);
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}
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// }}}
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@ -188,11 +209,37 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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return $db;
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}
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// if we have an AUTO_INCREMENT column and a PK on more than one field,
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// we have to handle it differently...
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$autoincrement = null;
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if (empty($options['primary'])) {
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$pk_fields = array();
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foreach ($fields as $fieldname => $def) {
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if (!empty($def['primary'])) {
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$pk_fields[$fieldname] = true;
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}
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if (!empty($def['autoincrement'])) {
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$autoincrement = $fieldname;
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}
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}
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if (!is_null($autoincrement) && count($pk_fields) > 1) {
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$options['primary'] = $pk_fields;
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} else {
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// the PK constraint is on max one field => OK
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$autoincrement = null;
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}
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}
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$query = $this->_getCreateTableQuery($name, $fields, $options);
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if (PEAR::isError($query)) {
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return $query;
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}
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if (!is_null($autoincrement)) {
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// we have to remove the PK clause added by _getIntegerDeclaration()
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$query = str_replace('AUTO_INCREMENT PRIMARY KEY', 'AUTO_INCREMENT', $query);
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}
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$options_strings = array();
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if (!empty($options['comment'])) {
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@ -226,6 +273,112 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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return MDB2_OK;
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}
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// }}}
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// {{{ dropTable()
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/**
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* drop an existing table
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*
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* @param string $name name of the table that should be dropped
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function dropTable($name)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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//delete the triggers associated to existing FK constraints
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$constraints = $this->listTableConstraints($name);
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if (!PEAR::isError($constraints) && !empty($constraints)) {
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$db->loadModule('Reverse', null, true);
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foreach ($constraints as $constraint) {
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$definition = $db->reverse->getTableConstraintDefinition($name, $constraint);
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if (!PEAR::isError($definition) && !empty($definition['foreign'])) {
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$result = $this->_dropFKTriggers($name, $constraint, $definition['references']['table']);
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if (PEAR::isError($result)) {
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return $result;
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}
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}
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}
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}
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return parent::dropTable($name);
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}
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// }}}
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// {{{ truncateTable()
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/**
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* Truncate an existing table (if the TRUNCATE TABLE syntax is not supported,
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* it falls back to a DELETE FROM TABLE query)
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*
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* @param string $name name of the table that should be truncated
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function truncateTable($name)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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$name = $db->quoteIdentifier($name, true);
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return $db->exec("TRUNCATE TABLE $name");
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}
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// }}}
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// {{{ vacuum()
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/**
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* Optimize (vacuum) all the tables in the db (or only the specified table)
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* and optionally run ANALYZE.
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*
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* @param string $table table name (all the tables if empty)
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* @param array $options an array with driver-specific options:
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* - timeout [int] (in seconds) [mssql-only]
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* - analyze [boolean] [pgsql and mysql]
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* - full [boolean] [pgsql-only]
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* - freeze [boolean] [pgsql-only]
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*
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* @return mixed MDB2_OK success, a MDB2 error on failure
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* @access public
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*/
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function vacuum($table = null, $options = array())
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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if (empty($table)) {
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$table = $this->listTables();
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if (PEAR::isError($table)) {
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return $table;
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}
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}
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if (is_array($table)) {
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foreach (array_keys($table) as $k) {
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$table[$k] = $db->quoteIdentifier($table[$k], true);
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}
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$table = implode(', ', $table);
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} else {
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$table = $db->quoteIdentifier($table, true);
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}
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$result = $db->exec('OPTIMIZE TABLE '.$table);
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if (PEAR::isError($result)) {
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return $result;
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}
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if (!empty($options['analyze'])) {
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return $db->exec('ANALYZE TABLE '.$table);
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}
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return MDB2_OK;
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}
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// }}}
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// {{{ alterTable()
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@ -656,6 +809,7 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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* 'last_login' => array()
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* )
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* )
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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@ -800,8 +954,8 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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'invalid definition, could not create constraint', __FUNCTION__);
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}
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$table = $db->quoteIdentifier($table, true);
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$query = "ALTER TABLE $table ADD $type $name";
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$table_quoted = $db->quoteIdentifier($table, true);
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$query = "ALTER TABLE $table_quoted ADD $type $name";
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if (!empty($definition['foreign'])) {
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$query .= ' FOREIGN KEY';
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}
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@ -819,7 +973,14 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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$query .= ' ('. implode(', ', $referenced_fields) . ')';
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$query .= $this->_getAdvancedFKOptions($definition);
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}
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return $db->exec($query);
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$res = $db->exec($query);
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if (PEAR::isError($res)) {
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return $res;
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}
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if (!empty($definition['foreign'])) {
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return $this->_createFKTriggers($table, array($name => $definition));
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}
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return MDB2_OK;
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}
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// }}}
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@ -841,16 +1002,210 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
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return $db;
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}
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$table = $db->quoteIdentifier($table, true);
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if ($primary || strtolower($name) == 'primary') {
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$query = "ALTER TABLE $table DROP PRIMARY KEY";
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} else {
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$query = 'ALTER TABLE '. $db->quoteIdentifier($table, true) .' DROP PRIMARY KEY';
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return $db->exec($query);
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}
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//is it a FK constraint? If so, also delete the associated triggers
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$db->loadModule('Reverse', null, true);
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$definition = $db->reverse->getTableConstraintDefinition($table, $name);
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if (!PEAR::isError($definition) && !empty($definition['foreign'])) {
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//first drop the FK enforcing triggers
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$result = $this->_dropFKTriggers($table, $name, $definition['references']['table']);
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if (PEAR::isError($result)) {
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return $result;
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}
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//then drop the constraint itself
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$table = $db->quoteIdentifier($table, true);
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$name = $db->quoteIdentifier($db->getIndexName($name), true);
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$query = "ALTER TABLE $table DROP INDEX $name";
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$query = "ALTER TABLE $table DROP FOREIGN KEY $name";
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return $db->exec($query);
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}
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$table = $db->quoteIdentifier($table, true);
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$name = $db->quoteIdentifier($db->getIndexName($name), true);
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$query = "ALTER TABLE $table DROP INDEX $name";
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return $db->exec($query);
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}
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// }}}
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// {{{ _createFKTriggers()
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/**
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* Create triggers to enforce the FOREIGN KEY constraint on the table
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*
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* NB: since there's no RAISE_APPLICATION_ERROR facility in mysql,
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* we call a non-existent procedure to raise the FK violation message.
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* @see http://forums.mysql.com/read.php?99,55108,71877#msg-71877
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*
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* @param string $table table name
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* @param array $foreign_keys FOREIGN KEY definitions
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*
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access private
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*/
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function _createFKTriggers($table, $foreign_keys)
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{
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$db =& $this->getDBInstance();
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if (PEAR::isError($db)) {
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return $db;
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}
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// create triggers to enforce FOREIGN KEY constraints
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if ($db->supports('triggers') && !empty($foreign_keys)) {
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$table = $db->quoteIdentifier($table, true);
|
|
|
|
|
foreach ($foreign_keys as $fkname => $fkdef) {
|
|
|
|
|
if (empty($fkdef)) {
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
//set actions to 'RESTRICT' if not set
|
|
|
|
|
$fkdef['onupdate'] = empty($fkdef['onupdate']) ? 'RESTRICT' : strtoupper($fkdef['onupdate']);
|
|
|
|
|
$fkdef['ondelete'] = empty($fkdef['ondelete']) ? 'RESTRICT' : strtoupper($fkdef['ondelete']);
|
|
|
|
|
|
|
|
|
|
$trigger_names = array(
|
|
|
|
|
'insert' => $fkname.'_insert_trg',
|
|
|
|
|
'update' => $fkname.'_update_trg',
|
|
|
|
|
'pk_update' => $fkname.'_pk_update_trg',
|
|
|
|
|
'pk_delete' => $fkname.'_pk_delete_trg',
|
|
|
|
|
);
|
|
|
|
|
$table_fields = array_keys($fkdef['fields']);
|
|
|
|
|
$referenced_fields = array_keys($fkdef['references']['fields']);
|
|
|
|
|
|
|
|
|
|
//create the ON [UPDATE|DELETE] triggers on the primary table
|
|
|
|
|
$restrict_action = ' IF (SELECT ';
|
|
|
|
|
$aliased_fields = array();
|
|
|
|
|
foreach ($table_fields as $field) {
|
|
|
|
|
$aliased_fields[] = $table .'.'.$field .' AS '.$field;
|
|
|
|
|
}
|
|
|
|
|
$restrict_action .= implode(',', $aliased_fields)
|
|
|
|
|
.' FROM '.$table
|
|
|
|
|
.' WHERE ';
|
|
|
|
|
$conditions = array();
|
|
|
|
|
$new_values = array();
|
|
|
|
|
$null_values = array();
|
|
|
|
|
for ($i=0; $i<count($table_fields); $i++) {
|
|
|
|
|
$conditions[] = $table_fields[$i] .' = OLD.'.$referenced_fields[$i];
|
|
|
|
|
$new_values[] = $table_fields[$i] .' = NEW.'.$referenced_fields[$i];
|
|
|
|
|
$null_values[] = $table_fields[$i] .' = NULL';
|
|
|
|
|
}
|
|
|
|
|
$restrict_action .= implode(' AND ', $conditions).') IS NOT NULL'
|
|
|
|
|
.' THEN CALL %s_ON_TABLE_'.$table.'_VIOLATES_FOREIGN_KEY_CONSTRAINT();'
|
|
|
|
|
.' END IF;';
|
|
|
|
|
|
|
|
|
|
$cascade_action_update = 'UPDATE '.$table.' SET '.implode(', ', $new_values) .' WHERE '.implode(' AND ', $conditions). ';';
|
|
|
|
|
$cascade_action_delete = 'DELETE FROM '.$table.' WHERE '.implode(' AND ', $conditions). ';';
|
|
|
|
|
$setnull_action = 'UPDATE '.$table.' SET '.implode(', ', $null_values).' WHERE '.implode(' AND ', $conditions). ';';
|
|
|
|
|
|
|
|
|
|
if ('SET DEFAULT' == $fkdef['onupdate'] || 'SET DEFAULT' == $fkdef['ondelete']) {
|
|
|
|
|
$db->loadModule('Reverse', null, true);
|
|
|
|
|
$default_values = array();
|
|
|
|
|
foreach ($table_fields as $table_field) {
|
|
|
|
|
$field_definition = $db->reverse->getTableFieldDefinition($table, $field);
|
|
|
|
|
if (PEAR::isError($field_definition)) {
|
|
|
|
|
return $field_definition;
|
|
|
|
|
}
|
|
|
|
|
$default_values[] = $table_field .' = '. $field_definition[0]['default'];
|
|
|
|
|
}
|
|
|
|
|
$setdefault_action = 'UPDATE '.$table.' SET '.implode(', ', $default_values).' WHERE '.implode(' AND ', $conditions). ';';
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$query = 'CREATE TRIGGER %s'
|
|
|
|
|
.' %s ON '.$fkdef['references']['table']
|
|
|
|
|
.' FOR EACH ROW BEGIN '
|
|
|
|
|
.' SET FOREIGN_KEY_CHECKS = 0; '; //only really needed for ON UPDATE CASCADE
|
|
|
|
|
|
|
|
|
|
if ('CASCADE' == $fkdef['onupdate']) {
|
|
|
|
|
$sql_update = sprintf($query, $trigger_names['pk_update'], 'BEFORE UPDATE', 'update') . $cascade_action_update;
|
|
|
|
|
} elseif ('SET NULL' == $fkdef['onupdate']) {
|
|
|
|
|
$sql_update = sprintf($query, $trigger_names['pk_update'], 'BEFORE UPDATE', 'update') . $setnull_action;
|
|
|
|
|
} elseif ('SET DEFAULT' == $fkdef['onupdate']) {
|
|
|
|
|
$sql_update = sprintf($query, $trigger_names['pk_update'], 'BEFORE UPDATE', 'update') . $setdefault_action;
|
|
|
|
|
} elseif ('NO ACTION' == $fkdef['onupdate']) {
|
|
|
|
|
$sql_update = sprintf($query.$restrict_action, $trigger_names['pk_update'], 'AFTER UPDATE', 'update');
|
|
|
|
|
} else {
|
|
|
|
|
//'RESTRICT'
|
|
|
|
|
$sql_update = sprintf($query.$restrict_action, $trigger_names['pk_update'], 'BEFORE UPDATE', 'update');
|
|
|
|
|
}
|
|
|
|
|
if ('CASCADE' == $fkdef['ondelete']) {
|
|
|
|
|
$sql_delete = sprintf($query, $trigger_names['pk_delete'], 'BEFORE DELETE', 'delete') . $cascade_action_delete;
|
|
|
|
|
} elseif ('SET NULL' == $fkdef['ondelete']) {
|
|
|
|
|
$sql_delete = sprintf($query, $trigger_names['pk_delete'], 'BEFORE DELETE', 'delete') . $setnull_action;
|
|
|
|
|
} elseif ('SET DEFAULT' == $fkdef['ondelete']) {
|
|
|
|
|
$sql_delete = sprintf($query, $trigger_names['pk_delete'], 'BEFORE DELETE', 'delete') . $setdefault_action;
|
|
|
|
|
} elseif ('NO ACTION' == $fkdef['ondelete']) {
|
|
|
|
|
$sql_delete = sprintf($query.$restrict_action, $trigger_names['pk_delete'], 'AFTER DELETE', 'delete');
|
|
|
|
|
} else {
|
|
|
|
|
//'RESTRICT'
|
|
|
|
|
$sql_delete = sprintf($query.$restrict_action, $trigger_names['pk_delete'], 'BEFORE DELETE', 'delete');
|
|
|
|
|
}
|
|
|
|
|
$sql_update .= ' SET FOREIGN_KEY_CHECKS = 1; END;';
|
|
|
|
|
$sql_delete .= ' SET FOREIGN_KEY_CHECKS = 1; END;';
|
|
|
|
|
|
|
|
|
|
$db->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
|
|
|
$db->expectError(MDB2_ERROR_CANNOT_CREATE);
|
|
|
|
|
$result = $db->exec($sql_delete);
|
|
|
|
|
$expected_errmsg = 'This MySQL version doesn\'t support multiple triggers with the same action time and event for one table';
|
|
|
|
|
$db->popExpect();
|
|
|
|
|
$db->popErrorHandling();
|
|
|
|
|
if (PEAR::isError($result)) {
|
|
|
|
|
if ($result->getCode() != MDB2_ERROR_CANNOT_CREATE) {
|
|
|
|
|
return $result;
|
|
|
|
|
}
|
|
|
|
|
$db->warnings[] = $expected_errmsg;
|
|
|
|
|
}
|
|
|
|
|
$db->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
|
|
|
$db->expectError(MDB2_ERROR_CANNOT_CREATE);
|
|
|
|
|
$result = $db->exec($sql_update);
|
|
|
|
|
$db->popExpect();
|
|
|
|
|
$db->popErrorHandling();
|
|
|
|
|
if (PEAR::isError($result) && $result->getCode() != MDB2_ERROR_CANNOT_CREATE) {
|
|
|
|
|
if ($result->getCode() != MDB2_ERROR_CANNOT_CREATE) {
|
|
|
|
|
return $result;
|
|
|
|
|
}
|
|
|
|
|
$db->warnings[] = $expected_errmsg;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return MDB2_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// }}}
|
|
|
|
|
// {{{ _dropFKTriggers()
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Drop the triggers created to enforce the FOREIGN KEY constraint on the table
|
|
|
|
|
*
|
|
|
|
|
* @param string $table table name
|
|
|
|
|
* @param string $fkname FOREIGN KEY constraint name
|
|
|
|
|
* @param string $referenced_table referenced table name
|
|
|
|
|
*
|
|
|
|
|
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
|
|
|
* @access private
|
|
|
|
|
*/
|
|
|
|
|
function _dropFKTriggers($table, $fkname, $referenced_table)
|
|
|
|
|
{
|
|
|
|
|
$db =& $this->getDBInstance();
|
|
|
|
|
if (PEAR::isError($db)) {
|
|
|
|
|
return $db;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$triggers = $this->listTableTriggers($table);
|
|
|
|
|
$triggers2 = $this->listTableTriggers($referenced_table);
|
|
|
|
|
if (!PEAR::isError($triggers2) && !PEAR::isError($triggers)) {
|
|
|
|
|
$triggers = array_merge($triggers, $triggers2);
|
|
|
|
|
$pattern = '/^'.$fkname.'(_pk)?_(insert|update|delete)_trg$/i';
|
|
|
|
|
foreach ($triggers as $trigger) {
|
|
|
|
|
if (preg_match($pattern, $trigger)) {
|
|
|
|
|
$result = $db->exec('DROP TRIGGER '.$trigger);
|
|
|
|
|
if (PEAR::isError($result)) {
|
|
|
|
|
return $result;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return MDB2_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// }}}
|
|
|
|
|
// {{{ listTableConstraints()
|
|
|
|
|
|
|
|
|
|
@ -904,8 +1259,8 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
|
|
|
|
|
$query = 'SHOW CREATE TABLE '. $db->escape($table);
|
|
|
|
|
$definition = $db->queryOne($query, 'text', 1);
|
|
|
|
|
if (!PEAR::isError($definition) && !empty($definition)) {
|
|
|
|
|
$pattern = '/\bCONSTRAINT\s+([^\s]+)\s+FOREIGN KEY\b/i';
|
|
|
|
|
if (preg_match_all($pattern, str_replace('`', '', $definition), $matches) > 1) {
|
|
|
|
|
$pattern = '/\bCONSTRAINT\b\s+([^\s]+)\s+\bFOREIGN KEY\b/Uims';
|
|
|
|
|
if (preg_match_all($pattern, str_replace('`', '', $definition), $matches) > 0) {
|
|
|
|
|
foreach ($matches[1] as $constraint) {
|
|
|
|
|
$result[$constraint] = true;
|
|
|
|
|
}
|
|
|
|
|
@ -969,10 +1324,6 @@ class MDB2_Driver_Manager_mysqli extends MDB2_Driver_Manager_Common
|
|
|
|
|
$options_strings[] = "ENGINE = $type";
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!empty($options_strings)) {
|
|
|
|
|
$query.= ' '.implode(' ', $options_strings);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$query = "CREATE TABLE $sequence_name ($seqcol_name INT NOT NULL AUTO_INCREMENT, PRIMARY KEY ($seqcol_name))";
|
|
|
|
|
if (!empty($options_strings)) {
|
|
|
|
|
$query .= ' '.implode(' ', $options_strings);
|
|
|
|
|
|
alecpl
17 years ago