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<?php
/*
* Copyright 2010-2013 by MODX, LLC.
*
* This file is part of xPDO.
*
* xPDO is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* xPDO is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* xPDO; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*/
/**
* The MySQL implementation of the xPDOManager class.
*
* @package xpdo
* @subpackage om.mysql
*/
/**
* Include the parent {@link xPDOManager} class.
*/
require_once (dirname(dirname(__FILE__)) . '/xpdomanager.class.php');
/**
* Provides MySQL data source management for an xPDO instance.
*
* These are utility functions that only need to be loaded under special
* circumstances, such as creating tables, adding indexes, altering table
* structures, etc. xPDOManager class implementations are specific to a
* database driver and this instance is implemented for MySQL.
*
* @package xpdo
* @subpackage om.mysql
*/
class xPDOManager_mysql extends xPDOManager {
public function createSourceContainer($dsnArray = null, $username= null, $password= null, $containerOptions= array ()) {
$created= false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
if ($dsnArray === null) $dsnArray = xPDO::parseDSN($this->xpdo->getOption('dsn'));
if ($username === null) $username = $this->xpdo->getOption('username', null, '');
if ($password === null) $password = $this->xpdo->getOption('password', null, '');
if (is_array($dsnArray) && is_string($username) && is_string($password)) {
$sql= 'CREATE DATABASE `' . $dsnArray['dbname'] . '`';
if (isset ($containerOptions['collation']) && isset ($containerOptions['charset'])) {
$sql.= ' CHARACTER SET ' . $containerOptions['charset'];
$sql.= ' COLLATE ' . $containerOptions['collation'];
}
try {
$pdo = new PDO("mysql:host={$dsnArray['host']}", $username, $password, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));
$result = $pdo->exec($sql);
if ($result !== false) {
$created = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not create source container:\n{$sql}\nresult = " . var_export($result, true));
}
} catch (PDOException $pe) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not connect to database server: " . $pe->getMessage());
} catch (Exception $e) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not create source container: " . $e->getMessage());
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $created;
}
public function removeSourceContainer($dsnArray = null, $username= null, $password= null) {
$removed= false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
if ($dsnArray === null) $dsnArray = xPDO::parseDSN($this->xpdo->getOption('dsn'));
if ($username === null) $username = $this->xpdo->getOption('username', null, '');
if ($password === null) $password = $this->xpdo->getOption('password', null, '');
if (is_array($dsnArray) && is_string($username) && is_string($password)) {
$sql= 'DROP DATABASE IF EXISTS ' . $this->xpdo->escape($dsnArray['dbname']);
try {
$pdo = new PDO("mysql:host={$dsnArray['host']}", $username, $password, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));
$result = $pdo->exec($sql);
if ($result !== false) {
$removed = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not remove source container:\n{$sql}\nresult = " . var_export($result, true));
}
} catch (PDOException $pe) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not connect to database server: " . $pe->getMessage());
} catch (Exception $e) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not remove source container: " . $e->getMessage());
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $removed;
}
public function removeObjectContainer($className) {
$removed= false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$instance= $this->xpdo->newObject($className);
if ($instance) {
$sql= 'DROP TABLE ' . $this->xpdo->getTableName($className);
$removed= $this->xpdo->exec($sql);
if ($removed === false && $this->xpdo->errorCode() !== '' && $this->xpdo->errorCode() !== PDO::ERR_NONE) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, 'Could not drop table ' . $className . "\nSQL: {$sql}\nERROR: " . print_r($this->xpdo->pdo->errorInfo(), true));
} else {
$removed= true;
$this->xpdo->log(xPDO::LOG_LEVEL_INFO, 'Dropped table' . $className . "\nSQL: {$sql}\n");
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $removed;
}
public function createObjectContainer($className) {
$created= false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$instance= $this->xpdo->newObject($className);
if ($instance) {
$tableName= $this->xpdo->getTableName($className);
$existsStmt = $this->xpdo->query("SELECT COUNT(*) FROM {$tableName}");
if ($existsStmt && $existsStmt->fetchAll()) {
return true;
}
$modelVersion= $this->xpdo->getModelVersion($className);
$tableMeta= $this->xpdo->getTableMeta($className);
$tableType= isset($tableMeta['engine']) ? $tableMeta['engine'] : 'MyISAM';
$legacyIndexes= version_compare($modelVersion, '1.1', '<');
$fulltextIndexes= array ();
$uniqueIndexes= array ();
$stdIndexes= array ();
$sql= 'CREATE TABLE ' . $tableName . ' (';
$fieldMeta = $this->xpdo->getFieldMeta($className, true);
$columns = array();
while (list($key, $meta)= each($fieldMeta)) {
$columns[] = $this->getColumnDef($className, $key, $meta);
/* Legacy index support for pre-2.0.0-rc3 models */
if ($legacyIndexes && isset ($meta['index']) && $meta['index'] !== 'pk') {
if ($meta['index'] === 'fulltext') {
if (isset ($meta['indexgrp'])) {
$fulltextIndexes[$meta['indexgrp']][]= $key;
} else {
$fulltextIndexes[$key]= $key;
}
}
elseif ($meta['index'] === 'unique') {
if (isset ($meta['indexgrp'])) {
$uniqueIndexes[$meta['indexgrp']][]= $key;
} else {
$uniqueIndexes[$key]= $key;
}
}
elseif ($meta['index'] === 'fk') {
if (isset ($meta['indexgrp'])) {
$stdIndexes[$meta['indexgrp']][]= $key;
} else {
$stdIndexes[$key]= $key;
}
} else {
if (isset ($meta['indexgrp'])) {
$stdIndexes[$meta['indexgrp']][]= $key;
} else {
$stdIndexes[$key]= $key;
}
}
}
}
$sql .= implode(', ', $columns);
if (!$legacyIndexes) {
$indexes = $this->xpdo->getIndexMeta($className);
$tableConstraints = array();
if (!empty ($indexes)) {
foreach ($indexes as $indexkey => $indexdef) {
$tableConstraints[] = $this->getIndexDef($className, $indexkey, $indexdef);
}
}
} else {
/* Legacy index support for schema model versions 1.0 */
$pk= $this->xpdo->getPK($className);
if (is_array($pk)) {
$pkarray= array ();
foreach ($pk as $k) {
$pkarray[]= $this->xpdo->escape($k);
}
$pk= implode(',', $pkarray);
}
elseif ($pk) {
$pk= $this->xpdo->escape($pk);
}
if ($pk) {
$tableConstraints[]= "PRIMARY KEY ({$pk})";
}
if (!empty ($stdIndexes)) {
foreach ($stdIndexes as $indexkey => $index) {
if (is_array($index)) {
$indexset= array ();
foreach ($index as $indexmember) {
$indexset[]= $this->xpdo->escape($indexmember);
}
$indexset= implode(',', $indexset);
} else {
$indexset= $this->xpdo->escape($indexkey);
}
$tableConstraints[]= "INDEX {$this->xpdo->escape($indexkey)} ({$indexset})";
}
}
if (!empty ($uniqueIndexes)) {
foreach ($uniqueIndexes as $indexkey => $index) {
if (is_array($index)) {
$indexset= array ();
foreach ($index as $indexmember) {
$indexset[]= $this->xpdo->escape($indexmember);
}
$indexset= implode(',', $indexset);
} else {
$indexset= $this->xpdo->escape($indexkey);
}
$tableConstraints[]= "UNIQUE INDEX {$this->xpdo->escape($indexkey)} ({$indexset})";
}
}
if (!empty ($fulltextIndexes)) {
foreach ($fulltextIndexes as $indexkey => $index) {
if (is_array($index)) {
$indexset= array ();
foreach ($index as $indexmember) {
$indexset[]= $this->xpdo->escape($indexmember);
}
$indexset= implode(',', $indexset);
} else {
$indexset= $this->xpdo->escape($indexkey);
}
$tableConstraints[]= "FULLTEXT INDEX {$this->xpdo->escape($indexkey)} ({$indexset})";
}
}
}
if (!empty($tableConstraints)) {
$sql .= ', ' . implode(', ', $tableConstraints);
}
$sql .= ")";
if (!empty($tableType)) {
$sql .= " ENGINE={$tableType}";
}
$created= $this->xpdo->exec($sql);
if ($created === false && $this->xpdo->errorCode() !== '' && $this->xpdo->errorCode() !== PDO::ERR_NONE) {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, 'Could not create table ' . $tableName . "\nSQL: {$sql}\nERROR: " . print_r($this->xpdo->errorInfo(), true));
} else {
$created= true;
$this->xpdo->log(xPDO::LOG_LEVEL_INFO, 'Created table ' . $tableName . "\nSQL: {$sql}\n");
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $created;
}
public function alterObjectContainer($className, array $options = array()) {
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
// TODO: Implement alterObjectContainer() method.
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
}
public function addConstraint($class, $name, array $options = array()) {
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
// TODO: Implement addConstraint() method.
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
}
public function addField($class, $name, array $options = array()) {
$result = false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$className = $this->xpdo->loadClass($class);
if ($className) {
$meta = $this->xpdo->getFieldMeta($className, true);
if (is_array($meta) && array_key_exists($name, $meta)) {
$colDef = $this->getColumnDef($className, $name, $meta[$name]);
if (!empty($colDef)) {
$sql = "ALTER TABLE {$this->xpdo->getTableName($className)} ADD COLUMN {$colDef}";
if (isset($options['first']) && !empty($options['first'])) {
$sql .= " FIRST";
} elseif (isset($options['after']) && array_key_exists($options['after'], $meta)) {
$sql .= " AFTER {$this->xpdo->escape($options['after'])}";
}
if ($this->xpdo->exec($sql) !== false) {
$result = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding field {$class}->{$name}: " . print_r($this->xpdo->errorInfo(), true), '', __METHOD__, __FILE__, __LINE__);
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding field {$class}->{$name}: Could not get column definition");
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding field {$class}->{$name}: No metadata defined");
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $result;
}
public function addIndex($class, $name, array $options = array()) {
$result = false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$className = $this->xpdo->loadClass($class);
if ($className) {
$meta = $this->xpdo->getIndexMeta($className);
if (is_array($meta) && array_key_exists($name, $meta)) {
$idxDef = $this->getIndexDef($className, $name, $meta[$name]);
if (!empty($idxDef)) {
$sql = "ALTER TABLE {$this->xpdo->getTableName($className)} ADD {$idxDef}";
if ($this->xpdo->exec($sql) !== false) {
$result = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding index {$name} to {$class}: " . print_r($this->xpdo->errorInfo(), true), '', __METHOD__, __FILE__, __LINE__);
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding index {$name} to {$class}: Could not get index definition");
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error adding index {$name} to {$class}: No metadata defined");
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $result;
}
public function alterField($class, $name, array $options = array()) {
$result = false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$className = $this->xpdo->loadClass($class);
if ($className) {
$meta = $this->xpdo->getFieldMeta($className, true);
if (is_array($meta) && array_key_exists($name, $meta)) {
$colDef = $this->getColumnDef($className, $name, $meta[$name]);
if (!empty($colDef)) {
$sql = "ALTER TABLE {$this->xpdo->getTableName($className)} MODIFY COLUMN {$colDef}";
if (isset($options['first']) && !empty($options['first'])) {
$sql .= " FIRST";
} elseif (isset($options['after']) && array_key_exists($options['after'], $meta)) {
$sql .= " AFTER {$this->xpdo->escape($options['after'])}";
}
if ($this->xpdo->exec($sql) !== false) {
$result = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error altering field {$class}->{$name}: " . print_r($this->xpdo->errorInfo(), true), '', __METHOD__, __FILE__, __LINE__);
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error altering field {$class}->{$name}: Could not get column definition");
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error altering field {$class}->{$name}: No metadata defined");
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $result;
}
public function removeConstraint($class, $name, array $options = array()) {
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
// TODO: Implement removeConstraint() method.
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
}
public function removeField($class, $name, array $options = array()) {
$result = false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$className = $this->xpdo->loadClass($class);
if ($className) {
$sql = "ALTER TABLE {$this->xpdo->getTableName($className)} DROP COLUMN {$this->xpdo->escape($name)}";
if ($this->xpdo->exec($sql) !== false) {
$result = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error removing field {$class}->{$name}: " . print_r($this->xpdo->errorInfo(), true), '', __METHOD__, __FILE__, __LINE__);
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $result;
}
public function removeIndex($class, $name, array $options = array()) {
$result = false;
if ($this->xpdo->getConnection(array(xPDO::OPT_CONN_MUTABLE => true))) {
$className = $this->xpdo->loadClass($class);
if ($className) {
$sql = "ALTER TABLE {$this->xpdo->getTableName($className)} DROP INDEX {$this->xpdo->escape($name)}";
if ($this->xpdo->exec($sql) !== false) {
$result = true;
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Error removing index {$name} from {$class}: " . print_r($this->xpdo->errorInfo(), true), '', __METHOD__, __FILE__, __LINE__);
}
}
} else {
$this->xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not get writable connection", '', __METHOD__, __FILE__, __LINE__);
}
return $result;
}
protected function getColumnDef($class, $name, $meta, array $options = array()) {
$pk= $this->xpdo->getPK($class);
$pktype= $this->xpdo->getPKType($class);
$dbtype= strtoupper($meta['dbtype']);
$lobs= array ('TEXT', 'BLOB');
$lobsPattern= '/(' . implode('|', $lobs) . ')/';
$datetimeStrings= array('timestamp', 'datetime');
$precision= isset ($meta['precision']) ? '(' . $meta['precision'] . ')' : '';
$notNull= !isset ($meta['null']) ? false : ($meta['null'] === 'false' || empty($meta['null']));
$null= $notNull ? ' NOT NULL' : ' NULL';
$extra= '';
if (isset($meta['index']) && $meta['index'] == 'pk' && !is_array($pk) && $pktype == 'integer' && isset ($meta['generated']) && $meta['generated'] == 'native') {
$extra= ' AUTO_INCREMENT';
}
if (empty ($extra) && isset ($meta['extra'])) {
$extra= ' ' . $meta['extra'];
}
$default= '';
if (isset ($meta['default']) && !preg_match($lobsPattern, $dbtype)) {
$defaultVal= $meta['default'];
if (($defaultVal === null || strtoupper($defaultVal) === 'NULL') || (in_array($this->xpdo->driver->getPhpType($dbtype), $datetimeStrings) && $defaultVal === 'CURRENT_TIMESTAMP')) {
$default= ' DEFAULT ' . $defaultVal;
} else {
$default= ' DEFAULT \'' . $defaultVal . '\'';
}
}
$attributes= (isset ($meta['attributes'])) ? ' ' . $meta['attributes'] : '';
if (strpos(strtolower($attributes), 'unsigned') !== false) {
$result = $this->xpdo->escape($name) . ' ' . $dbtype . $precision . $attributes . $null . $default . $extra;
} else {
$result = $this->xpdo->escape($name) . ' ' . $dbtype . $precision . $null . $default . $attributes . $extra;
}
return $result;
}
protected function getIndexDef($class, $name, $meta, array $options = array()) {
$result = '';
if (isset($meta['type']) && $meta['type'] == 'FULLTEXT') {
$indexType = "FULLTEXT";
} else {
$indexType = ($meta['primary'] ? 'PRIMARY KEY' : ($meta['unique'] ? 'UNIQUE KEY' : 'INDEX'));
}
$index = $meta['columns'];
if (is_array($index)) {
$indexset= array ();
foreach ($index as $indexmember => $indexmemberdetails) {
$indexMemberDetails = $this->xpdo->escape($indexmember);
if (isset($indexmemberdetails['length']) && !empty($indexmemberdetails['length'])) {
$indexMemberDetails .= " ({$indexmemberdetails['length']})";
}
$indexset[]= $indexMemberDetails;
}
$indexset= implode(',', $indexset);
if (!empty($indexset)) {
switch ($indexType) {
case 'PRIMARY KEY':
$result= "{$indexType} ({$indexset})";
break;
default:
$result= "{$indexType} {$this->xpdo->escape($name)} ({$indexset})";
break;
}
}
}
return $result;
}
}