mirror of
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Backup of current cakephp version
This commit is contained in:
Brm Ko
parent
b8f82da6f8
commit
5a580df460
925 changed files with 238041 additions and 1 deletions
749
lib/Cake/Model/Datasource/Database/Mysql.php
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749
lib/Cake/Model/Datasource/Database/Mysql.php
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<?php
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/**
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* MySQL layer for DBO
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Model.Datasource.Database
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* @since CakePHP(tm) v 0.10.5.1790
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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App::uses('DboSource', 'Model/Datasource');
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/**
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* MySQL DBO driver object
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*
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* Provides connection and SQL generation for MySQL RDMS
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*
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* @package Cake.Model.Datasource.Database
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*/
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class Mysql extends DboSource {
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/**
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* Datasource description
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*
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* @var string
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*/
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public $description = "MySQL DBO Driver";
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/**
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* Base configuration settings for MySQL driver
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*
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* @var array
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*/
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protected $_baseConfig = array(
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'persistent' => true,
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'host' => 'localhost',
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'login' => 'root',
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'password' => '',
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'database' => 'cake',
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'port' => '3306'
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);
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/**
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* Reference to the PDO object connection
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*
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* @var PDO $_connection
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*/
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protected $_connection = null;
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/**
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* Start quote
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*
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* @var string
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*/
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public $startQuote = "`";
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/**
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* End quote
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*
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* @var string
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*/
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public $endQuote = "`";
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/**
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* use alias for update and delete. Set to true if version >= 4.1
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*
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* @var boolean
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*/
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protected $_useAlias = true;
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/**
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* List of engine specific additional field parameters used on table creating
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*
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* @var array
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*/
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public $fieldParameters = array(
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'charset' => array('value' => 'CHARACTER SET', 'quote' => false, 'join' => ' ', 'column' => false, 'position' => 'beforeDefault'),
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'collate' => array('value' => 'COLLATE', 'quote' => false, 'join' => ' ', 'column' => 'Collation', 'position' => 'beforeDefault'),
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'comment' => array('value' => 'COMMENT', 'quote' => true, 'join' => ' ', 'column' => 'Comment', 'position' => 'afterDefault')
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);
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/**
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* List of table engine specific parameters used on table creating
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*
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* @var array
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*/
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public $tableParameters = array(
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'charset' => array('value' => 'DEFAULT CHARSET', 'quote' => false, 'join' => '=', 'column' => 'charset'),
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'collate' => array('value' => 'COLLATE', 'quote' => false, 'join' => '=', 'column' => 'Collation'),
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'engine' => array('value' => 'ENGINE', 'quote' => false, 'join' => '=', 'column' => 'Engine')
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);
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/**
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* MySQL column definition
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*
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* @var array
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*/
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public $columns = array(
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'primary_key' => array('name' => 'NOT NULL AUTO_INCREMENT'),
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'string' => array('name' => 'varchar', 'limit' => '255'),
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'text' => array('name' => 'text'),
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'integer' => array('name' => 'int', 'limit' => '11', 'formatter' => 'intval'),
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'float' => array('name' => 'float', 'formatter' => 'floatval'),
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'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
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'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
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'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
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'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
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'binary' => array('name' => 'blob'),
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'boolean' => array('name' => 'tinyint', 'limit' => '1')
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);
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/**
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* Connects to the database using options in the given configuration array.
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*
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* @return boolean True if the database could be connected, else false
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* @throws MissingConnectionException
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*/
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public function connect() {
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$config = $this->config;
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$this->connected = false;
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try {
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$flags = array(
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PDO::ATTR_PERSISTENT => $config['persistent'],
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PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
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);
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if (!empty($config['encoding'])) {
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$flags[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES ' . $config['encoding'];
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}
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if (empty($config['unix_socket'])) {
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$dsn = "mysql:host={$config['host']};port={$config['port']};dbname={$config['database']}";
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} else {
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$dsn = "mysql:unix_socket={$config['unix_socket']};dbname={$config['database']}";
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}
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$this->_connection = new PDO(
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$dsn,
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$config['login'],
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$config['password'],
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$flags
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);
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$this->connected = true;
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} catch (PDOException $e) {
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throw new MissingConnectionException(array(
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'class' => get_class($this),
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'message' => $e->getMessage()
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));
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}
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$this->_useAlias = (bool)version_compare($this->getVersion(), "4.1", ">=");
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return $this->connected;
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}
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/**
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* Check whether the MySQL extension is installed/loaded
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*
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* @return boolean
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*/
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public function enabled() {
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return in_array('mysql', PDO::getAvailableDrivers());
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}
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/**
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* Returns an array of sources (tables) in the database.
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*
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* @param mixed $data
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* @return array Array of table names in the database
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*/
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public function listSources($data = null) {
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$cache = parent::listSources();
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if ($cache != null) {
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return $cache;
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}
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$result = $this->_execute('SHOW TABLES FROM ' . $this->name($this->config['database']));
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if (!$result) {
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$result->closeCursor();
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return array();
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} else {
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$tables = array();
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while ($line = $result->fetch(PDO::FETCH_NUM)) {
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$tables[] = $line[0];
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}
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$result->closeCursor();
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parent::listSources($tables);
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return $tables;
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}
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}
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/**
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* Builds a map of the columns contained in a result
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*
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* @param PDOStatement $results
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* @return void
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*/
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public function resultSet($results) {
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$this->map = array();
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$numFields = $results->columnCount();
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$index = 0;
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while ($numFields-- > 0) {
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$column = $results->getColumnMeta($index);
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if (empty($column['native_type'])) {
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$type = ($column['len'] == 1) ? 'boolean' : 'string';
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} else {
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$type = $column['native_type'];
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}
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if (!empty($column['table']) && strpos($column['name'], $this->virtualFieldSeparator) === false) {
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$this->map[$index++] = array($column['table'], $column['name'], $type);
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} else {
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$this->map[$index++] = array(0, $column['name'], $type);
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}
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}
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}
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/**
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* Fetches the next row from the current result set
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*
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* @return mixed array with results fetched and mapped to column names or false if there is no results left to fetch
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*/
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public function fetchResult() {
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if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
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$resultRow = array();
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foreach ($this->map as $col => $meta) {
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list($table, $column, $type) = $meta;
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$resultRow[$table][$column] = $row[$col];
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if ($type === 'boolean' && $row[$col] !== null) {
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$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]);
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}
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}
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return $resultRow;
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}
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$this->_result->closeCursor();
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return false;
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}
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/**
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* Gets the database encoding
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*
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* @return string The database encoding
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*/
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public function getEncoding() {
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return $this->_execute('SHOW VARIABLES LIKE ?', array('character_set_client'))->fetchObject()->Value;
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}
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/**
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* Query charset by collation
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*
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* @param string $name Collation name
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* @return string Character set name
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*/
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public function getCharsetName($name) {
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if ((bool)version_compare($this->getVersion(), "5", ">=")) {
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$r = $this->_execute('SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME = ?', array($name));
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$cols = $r->fetch(PDO::FETCH_ASSOC);
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if (isset($cols['CHARACTER_SET_NAME'])) {
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return $cols['CHARACTER_SET_NAME'];
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}
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}
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return false;
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}
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/**
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* Returns an array of the fields in given table name.
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*
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* @param Model|string $model Name of database table to inspect or model instance
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* @return array Fields in table. Keys are name and type
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* @throws CakeException
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*/
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public function describe($model) {
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$key = $this->fullTableName($model, false);
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$cache = parent::describe($key);
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if ($cache != null) {
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return $cache;
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}
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$table = $this->fullTableName($model);
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$fields = false;
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$cols = $this->_execute('SHOW FULL COLUMNS FROM ' . $table);
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if (!$cols) {
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throw new CakeException(__d('cake_dev', 'Could not describe table for %s', $table));
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}
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while ($column = $cols->fetch(PDO::FETCH_OBJ)) {
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$fields[$column->Field] = array(
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'type' => $this->column($column->Type),
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'null' => ($column->Null === 'YES' ? true : false),
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'default' => $column->Default,
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'length' => $this->length($column->Type),
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);
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if (!empty($column->Key) && isset($this->index[$column->Key])) {
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$fields[$column->Field]['key'] = $this->index[$column->Key];
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}
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foreach ($this->fieldParameters as $name => $value) {
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if (!empty($column->{$value['column']})) {
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$fields[$column->Field][$name] = $column->{$value['column']};
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}
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}
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if (isset($fields[$column->Field]['collate'])) {
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$charset = $this->getCharsetName($fields[$column->Field]['collate']);
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if ($charset) {
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$fields[$column->Field]['charset'] = $charset;
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}
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}
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}
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$this->_cacheDescription($key, $fields);
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$cols->closeCursor();
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return $fields;
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}
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/**
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* Generates and executes an SQL UPDATE statement for given model, fields, and values.
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*
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* @param Model $model
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* @param array $fields
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* @param array $values
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* @param mixed $conditions
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* @return array
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*/
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public function update(Model $model, $fields = array(), $values = null, $conditions = null) {
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if (!$this->_useAlias) {
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return parent::update($model, $fields, $values, $conditions);
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}
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if ($values == null) {
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$combined = $fields;
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} else {
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$combined = array_combine($fields, $values);
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}
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$alias = $joins = false;
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$fields = $this->_prepareUpdateFields($model, $combined, empty($conditions), !empty($conditions));
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$fields = implode(', ', $fields);
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$table = $this->fullTableName($model);
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if (!empty($conditions)) {
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$alias = $this->name($model->alias);
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if ($model->name == $model->alias) {
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$joins = implode(' ', $this->_getJoins($model));
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}
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}
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$conditions = $this->conditions($this->defaultConditions($model, $conditions, $alias), true, true, $model);
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if ($conditions === false) {
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return false;
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}
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if (!$this->execute($this->renderStatement('update', compact('table', 'alias', 'joins', 'fields', 'conditions')))) {
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$model->onError();
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return false;
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}
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return true;
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}
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/**
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* Generates and executes an SQL DELETE statement for given id/conditions on given model.
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*
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* @param Model $model
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* @param mixed $conditions
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* @return boolean Success
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*/
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public function delete(Model $model, $conditions = null) {
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if (!$this->_useAlias) {
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return parent::delete($model, $conditions);
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}
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$alias = $this->name($model->alias);
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$table = $this->fullTableName($model);
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$joins = implode(' ', $this->_getJoins($model));
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|
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if (empty($conditions)) {
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$alias = $joins = false;
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}
|
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$complexConditions = false;
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foreach ((array)$conditions as $key => $value) {
|
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if (strpos($key, $model->alias) === false) {
|
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$complexConditions = true;
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break;
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}
|
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}
|
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if (!$complexConditions) {
|
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$joins = false;
|
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}
|
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|
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$conditions = $this->conditions($this->defaultConditions($model, $conditions, $alias), true, true, $model);
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if ($conditions === false) {
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return false;
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}
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if ($this->execute($this->renderStatement('delete', compact('alias', 'table', 'joins', 'conditions'))) === false) {
|
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$model->onError();
|
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return false;
|
||||
}
|
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return true;
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}
|
||||
|
||||
/**
|
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* Sets the database encoding
|
||||
*
|
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* @param string $enc Database encoding
|
||||
* @return boolean
|
||||
*/
|
||||
public function setEncoding($enc) {
|
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return $this->_execute('SET NAMES ' . $enc) !== false;
|
||||
}
|
||||
|
||||
/**
|
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* Returns an array of the indexes in given datasource name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
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public function index($model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model);
|
||||
$old = version_compare($this->getVersion(), '4.1', '<=');
|
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if ($table) {
|
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$indices = $this->_execute('SHOW INDEX FROM ' . $table);
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// @codingStandardsIgnoreStart
|
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// MySQL columns don't match the cakephp conventions.
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while ($idx = $indices->fetch(PDO::FETCH_OBJ)) {
|
||||
if ($old) {
|
||||
$idx = (object)current((array)$idx);
|
||||
}
|
||||
if (!isset($index[$idx->Key_name]['column'])) {
|
||||
$col = array();
|
||||
$index[$idx->Key_name]['column'] = $idx->Column_name;
|
||||
$index[$idx->Key_name]['unique'] = intval($idx->Non_unique == 0);
|
||||
} else {
|
||||
if (!empty($index[$idx->Key_name]['column']) && !is_array($index[$idx->Key_name]['column'])) {
|
||||
$col[] = $index[$idx->Key_name]['column'];
|
||||
}
|
||||
$col[] = $idx->Column_name;
|
||||
$index[$idx->Key_name]['column'] = $col;
|
||||
}
|
||||
if (!empty($idx->Sub_part)) {
|
||||
if (!isset($index[$idx->Key_name]['length'])) {
|
||||
$index[$idx->Key_name]['length'] = array();
|
||||
}
|
||||
$index[$idx->Key_name]['length'][$idx->Column_name] = $idx->Sub_part;
|
||||
}
|
||||
}
|
||||
// @codingStandardsIgnoreEnd
|
||||
$indices->closeCursor();
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a MySQL Alter Table syntax for the given Schema comparison
|
||||
*
|
||||
* @param array $compare Result of a CakeSchema::compare()
|
||||
* @param string $table
|
||||
* @return array Array of alter statements to make.
|
||||
*/
|
||||
public function alterSchema($compare, $table = null) {
|
||||
if (!is_array($compare)) {
|
||||
return false;
|
||||
}
|
||||
$out = '';
|
||||
$colList = array();
|
||||
foreach ($compare as $curTable => $types) {
|
||||
$indexes = $tableParameters = $colList = array();
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'ALTER TABLE ' . $this->fullTableName($curTable) . " \n";
|
||||
foreach ($types as $type => $column) {
|
||||
if (isset($column['indexes'])) {
|
||||
$indexes[$type] = $column['indexes'];
|
||||
unset($column['indexes']);
|
||||
}
|
||||
if (isset($column['tableParameters'])) {
|
||||
$tableParameters[$type] = $column['tableParameters'];
|
||||
unset($column['tableParameters']);
|
||||
}
|
||||
switch ($type) {
|
||||
case 'add':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$alter = 'ADD ' . $this->buildColumn($col);
|
||||
if (isset($col['after'])) {
|
||||
$alter .= ' AFTER ' . $this->name($col['after']);
|
||||
}
|
||||
$colList[] = $alter;
|
||||
}
|
||||
break;
|
||||
case 'drop':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$colList[] = 'DROP ' . $this->name($field);
|
||||
}
|
||||
break;
|
||||
case 'change':
|
||||
foreach ($column as $field => $col) {
|
||||
if (!isset($col['name'])) {
|
||||
$col['name'] = $field;
|
||||
}
|
||||
$colList[] = 'CHANGE ' . $this->name($field) . ' ' . $this->buildColumn($col);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
$colList = array_merge($colList, $this->_alterIndexes($curTable, $indexes));
|
||||
$colList = array_merge($colList, $this->_alterTableParameters($curTable, $tableParameters));
|
||||
$out .= "\t" . implode(",\n\t", $colList) . ";\n\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a MySQL "drop table" statement for the given Schema object
|
||||
*
|
||||
* @param CakeSchema $schema An instance of a subclass of CakeSchema
|
||||
* @param string $table Optional. If specified only the table name given will be generated.
|
||||
* Otherwise, all tables defined in the schema are generated.
|
||||
* @return string
|
||||
*/
|
||||
public function dropSchema(CakeSchema $schema, $table = null) {
|
||||
$out = '';
|
||||
foreach ($schema->tables as $curTable => $columns) {
|
||||
if (!$table || $table === $curTable) {
|
||||
$out .= 'DROP TABLE IF EXISTS ' . $this->fullTableName($curTable) . ";\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate MySQL table parameter alteration statements for a table.
|
||||
*
|
||||
* @param string $table Table to alter parameters for.
|
||||
* @param array $parameters Parameters to add & drop.
|
||||
* @return array Array of table property alteration statements.
|
||||
*/
|
||||
protected function _alterTableParameters($table, $parameters) {
|
||||
if (isset($parameters['change'])) {
|
||||
return $this->buildTableParameters($parameters['change']);
|
||||
}
|
||||
return array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Format indexes for create table
|
||||
*
|
||||
* @param array $indexes An array of indexes to generate SQL from
|
||||
* @param string $table Optional table name, not used
|
||||
* @return array An array of SQL statements for indexes
|
||||
* @see DboSource::buildIndex()
|
||||
*/
|
||||
public function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
foreach ($indexes as $name => $value) {
|
||||
$out = '';
|
||||
if ($name === 'PRIMARY') {
|
||||
$out .= 'PRIMARY ';
|
||||
$name = null;
|
||||
} else {
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
$name = $this->startQuote . $name . $this->endQuote;
|
||||
}
|
||||
// length attribute only used for MySQL datasource, for TEXT/BLOB index columns
|
||||
$out .= 'KEY ' . $name . ' (';
|
||||
if (is_array($value['column'])) {
|
||||
if (isset($value['length'])) {
|
||||
$vals = array();
|
||||
foreach ($value['column'] as $column) {
|
||||
$name = $this->name($column);
|
||||
if (isset($value['length'])) {
|
||||
$name .= $this->_buildIndexSubPart($value['length'], $column);
|
||||
}
|
||||
$vals[] = $name;
|
||||
}
|
||||
$out .= implode(', ', $vals);
|
||||
} else {
|
||||
$out .= implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
}
|
||||
} else {
|
||||
$out .= $this->name($value['column']);
|
||||
if (isset($value['length'])) {
|
||||
$out .= $this->_buildIndexSubPart($value['length'], $value['column']);
|
||||
}
|
||||
}
|
||||
$out .= ')';
|
||||
$join[] = $out;
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate MySQL index alteration statements for a table.
|
||||
*
|
||||
* @param string $table Table to alter indexes for
|
||||
* @param array $indexes Indexes to add and drop
|
||||
* @return array Index alteration statements
|
||||
*/
|
||||
protected function _alterIndexes($table, $indexes) {
|
||||
$alter = array();
|
||||
if (isset($indexes['drop'])) {
|
||||
foreach ($indexes['drop'] as $name => $value) {
|
||||
$out = 'DROP ';
|
||||
if ($name == 'PRIMARY') {
|
||||
$out .= 'PRIMARY KEY';
|
||||
} else {
|
||||
$out .= 'KEY ' . $this->startQuote . $name . $this->endQuote;
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['add'])) {
|
||||
$add = $this->buildIndex($indexes['add']);
|
||||
foreach ($add as $index) {
|
||||
$alter[] = 'ADD ' . $index;
|
||||
}
|
||||
}
|
||||
return $alter;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format length for text indexes
|
||||
*
|
||||
* @param array $lengths An array of lengths for a single index
|
||||
* @param string $column The column for which to generate the index length
|
||||
* @return string Formatted length part of an index field
|
||||
*/
|
||||
protected function _buildIndexSubPart($lengths, $column) {
|
||||
if (is_null($lengths)) {
|
||||
return '';
|
||||
}
|
||||
if (!isset($lengths[$column])) {
|
||||
return '';
|
||||
}
|
||||
return '(' . $lengths[$column] . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an detailed array of sources (tables) in the database.
|
||||
*
|
||||
* @param string $name Table name to get parameters
|
||||
* @return array Array of table names in the database
|
||||
*/
|
||||
public function listDetailedSources($name = null) {
|
||||
$condition = '';
|
||||
if (is_string($name)) {
|
||||
$condition = ' WHERE name = ' . $this->value($name);
|
||||
}
|
||||
$result = $this->_connection->query('SHOW TABLE STATUS ' . $condition, PDO::FETCH_ASSOC);
|
||||
|
||||
if (!$result) {
|
||||
$result->closeCursor();
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
foreach ($result as $row) {
|
||||
$tables[$row['Name']] = (array)$row;
|
||||
unset($tables[$row['Name']]['queryString']);
|
||||
if (!empty($row['Collation'])) {
|
||||
$charset = $this->getCharsetName($row['Collation']);
|
||||
if ($charset) {
|
||||
$tables[$row['Name']]['charset'] = $charset;
|
||||
}
|
||||
}
|
||||
}
|
||||
$result->closeCursor();
|
||||
if (is_string($name) && isset($tables[$name])) {
|
||||
return $tables[$name];
|
||||
}
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
public function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '(' . $real['limit'] . ')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = str_replace(')', '', $real);
|
||||
$limit = $this->length($real);
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $vals) = explode('(', $col);
|
||||
}
|
||||
|
||||
if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
|
||||
return $col;
|
||||
}
|
||||
if (($col === 'tinyint' && $limit == 1) || $col === 'boolean') {
|
||||
return 'boolean';
|
||||
}
|
||||
if (strpos($col, 'int') !== false) {
|
||||
return 'integer';
|
||||
}
|
||||
if (strpos($col, 'char') !== false || $col === 'tinytext') {
|
||||
return 'string';
|
||||
}
|
||||
if (strpos($col, 'text') !== false) {
|
||||
return 'text';
|
||||
}
|
||||
if (strpos($col, 'blob') !== false || $col === 'binary') {
|
||||
return 'binary';
|
||||
}
|
||||
if (strpos($col, 'float') !== false || strpos($col, 'double') !== false || strpos($col, 'decimal') !== false) {
|
||||
return 'float';
|
||||
}
|
||||
if (strpos($col, 'enum') !== false) {
|
||||
return "enum($vals)";
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the schema name
|
||||
*
|
||||
* @return string The schema name
|
||||
*/
|
||||
public function getSchemaName() {
|
||||
return $this->config['database'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the server support nested transactions
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function nestedTransactionSupported() {
|
||||
return $this->useNestedTransactions && version_compare($this->getVersion(), '4.1', '>=');
|
||||
}
|
||||
|
||||
}
|
||||
907
lib/Cake/Model/Datasource/Database/Postgres.php
Normal file
907
lib/Cake/Model/Datasource/Database/Postgres.php
Normal file
|
|
@ -0,0 +1,907 @@
|
|||
<?php
|
||||
/**
|
||||
* PostgreSQL layer for DBO.
|
||||
*
|
||||
* PHP 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package Cake.Model.Datasource.Database
|
||||
* @since CakePHP(tm) v 0.9.1.114
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
App::uses('DboSource', 'Model/Datasource');
|
||||
|
||||
/**
|
||||
* PostgreSQL layer for DBO.
|
||||
*
|
||||
* @package Cake.Model.Datasource.Database
|
||||
*/
|
||||
class Postgres extends DboSource {
|
||||
|
||||
/**
|
||||
* Driver description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $description = "PostgreSQL DBO Driver";
|
||||
|
||||
/**
|
||||
* Base driver configuration settings. Merged with user settings.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'host' => 'localhost',
|
||||
'login' => 'root',
|
||||
'password' => '',
|
||||
'database' => 'cake',
|
||||
'schema' => 'public',
|
||||
'port' => 5432,
|
||||
'encoding' => ''
|
||||
);
|
||||
|
||||
/**
|
||||
* Columns
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
public $columns = array(
|
||||
'primary_key' => array('name' => 'serial NOT NULL'),
|
||||
'string' => array('name' => 'varchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'text'),
|
||||
'integer' => array('name' => 'integer', 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'float', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'bytea'),
|
||||
'boolean' => array('name' => 'boolean'),
|
||||
'number' => array('name' => 'numeric'),
|
||||
'inet' => array('name' => 'inet')
|
||||
);
|
||||
|
||||
/**
|
||||
* Starting Quote
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $startQuote = '"';
|
||||
|
||||
/**
|
||||
* Ending Quote
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $endQuote = '"';
|
||||
|
||||
/**
|
||||
* Contains mappings of custom auto-increment sequences, if a table uses a sequence name
|
||||
* other than what is dictated by convention.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_sequenceMap = array();
|
||||
|
||||
/**
|
||||
* Connects to the database using options in the given configuration array.
|
||||
*
|
||||
* @return boolean True if successfully connected.
|
||||
* @throws MissingConnectionException
|
||||
*/
|
||||
public function connect() {
|
||||
$config = $this->config;
|
||||
$this->connected = false;
|
||||
try {
|
||||
$flags = array(
|
||||
PDO::ATTR_PERSISTENT => $config['persistent'],
|
||||
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
|
||||
);
|
||||
$this->_connection = new PDO(
|
||||
"pgsql:host={$config['host']};port={$config['port']};dbname={$config['database']}",
|
||||
$config['login'],
|
||||
$config['password'],
|
||||
$flags
|
||||
);
|
||||
|
||||
$this->connected = true;
|
||||
if (!empty($config['encoding'])) {
|
||||
$this->setEncoding($config['encoding']);
|
||||
}
|
||||
if (!empty($config['schema'])) {
|
||||
$this->_execute('SET search_path TO ' . $config['schema']);
|
||||
}
|
||||
} catch (PDOException $e) {
|
||||
throw new MissingConnectionException(array(
|
||||
'class' => get_class($this),
|
||||
'message' => $e->getMessage()
|
||||
));
|
||||
}
|
||||
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if PostgreSQL is enabled/loaded
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function enabled() {
|
||||
return in_array('pgsql', PDO::getAvailableDrivers());
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
|
||||
*
|
||||
* @param mixed $data
|
||||
* @return array Array of table names in the database
|
||||
*/
|
||||
public function listSources($data = null) {
|
||||
$cache = parent::listSources();
|
||||
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
|
||||
$schema = $this->config['schema'];
|
||||
$sql = "SELECT table_name as name FROM INFORMATION_SCHEMA.tables WHERE table_schema = ?";
|
||||
$result = $this->_execute($sql, array($schema));
|
||||
|
||||
if (!$result) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
|
||||
foreach ($result as $item) {
|
||||
$tables[] = $item->name;
|
||||
}
|
||||
|
||||
$result->closeCursor();
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param Model|string $model Name of database table to inspect
|
||||
* @return array Fields in table. Keys are name and type
|
||||
*/
|
||||
public function describe($model) {
|
||||
$table = $this->fullTableName($model, false, false);
|
||||
$fields = parent::describe($table);
|
||||
$this->_sequenceMap[$table] = array();
|
||||
$cols = null;
|
||||
|
||||
if ($fields === null) {
|
||||
$cols = $this->_execute(
|
||||
"SELECT DISTINCT table_schema AS schema, column_name AS name, data_type AS type, is_nullable AS null,
|
||||
column_default AS default, ordinal_position AS position, character_maximum_length AS char_length,
|
||||
character_octet_length AS oct_length FROM information_schema.columns
|
||||
WHERE table_name = ? AND table_schema = ? ORDER BY position",
|
||||
array($table, $this->config['schema'])
|
||||
);
|
||||
|
||||
// @codingStandardsIgnoreStart
|
||||
// Postgres columns don't match the coding standards.
|
||||
foreach ($cols as $c) {
|
||||
$type = $c->type;
|
||||
if (!empty($c->oct_length) && $c->char_length === null) {
|
||||
if ($c->type == 'character varying') {
|
||||
$length = null;
|
||||
$type = 'text';
|
||||
} elseif ($c->type == 'uuid') {
|
||||
$length = 36;
|
||||
} else {
|
||||
$length = intval($c->oct_length);
|
||||
}
|
||||
} elseif (!empty($c->char_length)) {
|
||||
$length = intval($c->char_length);
|
||||
} else {
|
||||
$length = $this->length($c->type);
|
||||
}
|
||||
if (empty($length)) {
|
||||
$length = null;
|
||||
}
|
||||
$fields[$c->name] = array(
|
||||
'type' => $this->column($type),
|
||||
'null' => ($c->null == 'NO' ? false : true),
|
||||
'default' => preg_replace(
|
||||
"/^'(.*)'$/",
|
||||
"$1",
|
||||
preg_replace('/::.*/', '', $c->default)
|
||||
),
|
||||
'length' => $length
|
||||
);
|
||||
if ($model instanceof Model) {
|
||||
if ($c->name == $model->primaryKey) {
|
||||
$fields[$c->name]['key'] = 'primary';
|
||||
if ($fields[$c->name]['type'] !== 'string') {
|
||||
$fields[$c->name]['length'] = 11;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (
|
||||
$fields[$c->name]['default'] == 'NULL' ||
|
||||
preg_match('/nextval\([\'"]?([\w.]+)/', $c->default, $seq)
|
||||
) {
|
||||
$fields[$c->name]['default'] = null;
|
||||
if (!empty($seq) && isset($seq[1])) {
|
||||
if (strpos($seq[1], '.') === false) {
|
||||
$sequenceName = $c->schema . '.' . $seq[1];
|
||||
} else {
|
||||
$sequenceName = $seq[1];
|
||||
}
|
||||
$this->_sequenceMap[$table][$c->name] = $sequenceName;
|
||||
}
|
||||
}
|
||||
if ($fields[$c->name]['type'] == 'boolean' && !empty($fields[$c->name]['default'])) {
|
||||
$fields[$c->name]['default'] = constant($fields[$c->name]['default']);
|
||||
}
|
||||
}
|
||||
$this->_cacheDescription($table, $fields);
|
||||
}
|
||||
// @codingStandardsIgnoreEnd
|
||||
|
||||
if (isset($model->sequence)) {
|
||||
$this->_sequenceMap[$table][$model->primaryKey] = $model->sequence;
|
||||
}
|
||||
|
||||
if ($cols) {
|
||||
$cols->closeCursor();
|
||||
}
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @param string $source Name of the database table
|
||||
* @param string $field Name of the ID database field. Defaults to "id"
|
||||
* @return integer
|
||||
*/
|
||||
public function lastInsertId($source = null, $field = 'id') {
|
||||
$seq = $this->getSequence($source, $field);
|
||||
return $this->_connection->lastInsertId($seq);
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the associated sequence for the given table/field
|
||||
*
|
||||
* @param string|Model $table Either a full table name (with prefix) as a string, or a model object
|
||||
* @param string $field Name of the ID database field. Defaults to "id"
|
||||
* @return string The associated sequence name from the sequence map, defaults to "{$table}_{$field}_seq"
|
||||
*/
|
||||
public function getSequence($table, $field = 'id') {
|
||||
if (is_object($table)) {
|
||||
$table = $this->fullTableName($table, false, false);
|
||||
}
|
||||
if (isset($this->_sequenceMap[$table]) && isset($this->_sequenceMap[$table][$field])) {
|
||||
return $this->_sequenceMap[$table][$field];
|
||||
} else {
|
||||
return "{$table}_{$field}_seq";
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all the records in a table and drops all associated auto-increment sequences
|
||||
*
|
||||
* @param string|Model $table A string or model class representing the table to be truncated
|
||||
* @param boolean $reset true for resetting the sequence, false to leave it as is.
|
||||
* and if 1, sequences are not modified
|
||||
* @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
|
||||
*/
|
||||
public function truncate($table, $reset = false) {
|
||||
$table = $this->fullTableName($table, false, false);
|
||||
if (!isset($this->_sequenceMap[$table])) {
|
||||
$cache = $this->cacheSources;
|
||||
$this->cacheSources = false;
|
||||
$this->describe($table);
|
||||
$this->cacheSources = $cache;
|
||||
}
|
||||
if ($this->execute('DELETE FROM ' . $this->fullTableName($table))) {
|
||||
$schema = $this->config['schema'];
|
||||
if (isset($this->_sequenceMap[$table]) && $reset != true) {
|
||||
foreach ($this->_sequenceMap[$table] as $field => $sequence) {
|
||||
list($schema, $sequence) = explode('.', $sequence);
|
||||
$this->_execute("ALTER SEQUENCE \"{$schema}\".\"{$sequence}\" RESTART WITH 1");
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares field names to be quoted by parent
|
||||
*
|
||||
* @param string $data
|
||||
* @return string SQL field
|
||||
*/
|
||||
public function name($data) {
|
||||
if (is_string($data)) {
|
||||
$data = str_replace('"__"', '__', $data);
|
||||
}
|
||||
return parent::name($data);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates the fields list of an SQL query.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param string $alias Alias table name
|
||||
* @param mixed $fields
|
||||
* @param boolean $quote
|
||||
* @return array
|
||||
*/
|
||||
public function fields(Model $model, $alias = null, $fields = array(), $quote = true) {
|
||||
if (empty($alias)) {
|
||||
$alias = $model->alias;
|
||||
}
|
||||
$fields = parent::fields($model, $alias, $fields, false);
|
||||
|
||||
if (!$quote) {
|
||||
return $fields;
|
||||
}
|
||||
$count = count($fields);
|
||||
|
||||
if ($count >= 1 && !preg_match('/^\s*COUNT\(\*/', $fields[0])) {
|
||||
$result = array();
|
||||
for ($i = 0; $i < $count; $i++) {
|
||||
if (!preg_match('/^.+\\(.*\\)/', $fields[$i]) && !preg_match('/\s+AS\s+/', $fields[$i])) {
|
||||
if (substr($fields[$i], -1) == '*') {
|
||||
if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$AssociatedModel = $model->{$build[0]};
|
||||
} else {
|
||||
$AssociatedModel = $model;
|
||||
}
|
||||
|
||||
$_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
|
||||
$result = array_merge($result, $_fields);
|
||||
continue;
|
||||
}
|
||||
|
||||
$prepend = '';
|
||||
if (strpos($fields[$i], 'DISTINCT') !== false) {
|
||||
$prepend = 'DISTINCT ';
|
||||
$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
|
||||
}
|
||||
|
||||
if (strrpos($fields[$i], '.') === false) {
|
||||
$fields[$i] = $prepend . $this->name($alias) . '.' . $this->name($fields[$i]) . ' AS ' . $this->name($alias . '__' . $fields[$i]);
|
||||
} else {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$fields[$i] = $prepend . $this->name($build[0]) . '.' . $this->name($build[1]) . ' AS ' . $this->name($build[0] . '__' . $build[1]);
|
||||
}
|
||||
} else {
|
||||
$fields[$i] = preg_replace_callback('/\(([\s\.\w]+)\)/', array(&$this, '_quoteFunctionField'), $fields[$i]);
|
||||
}
|
||||
$result[] = $fields[$i];
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Auxiliary function to quote matched `(Model.fields)` from a preg_replace_callback call
|
||||
* Quotes the fields in a function call.
|
||||
*
|
||||
* @param string $match matched string
|
||||
* @return string quoted string
|
||||
*/
|
||||
protected function _quoteFunctionField($match) {
|
||||
$prepend = '';
|
||||
if (strpos($match[1], 'DISTINCT') !== false) {
|
||||
$prepend = 'DISTINCT ';
|
||||
$match[1] = trim(str_replace('DISTINCT', '', $match[1]));
|
||||
}
|
||||
$constant = preg_match('/^\d+|NULL|FALSE|TRUE$/i', $match[1]);
|
||||
|
||||
if (!$constant && strpos($match[1], '.') === false) {
|
||||
$match[1] = $this->name($match[1]);
|
||||
} elseif (!$constant) {
|
||||
$parts = explode('.', $match[1]);
|
||||
if (!Hash::numeric($parts)) {
|
||||
$match[1] = $this->name($match[1]);
|
||||
}
|
||||
}
|
||||
return '(' . $prepend . $match[1] . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the indexes in given datasource name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
||||
public function index($model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model, false, false);
|
||||
if ($table) {
|
||||
$indexes = $this->query("SELECT c2.relname, i.indisprimary, i.indisunique, i.indisclustered, i.indisvalid, pg_catalog.pg_get_indexdef(i.indexrelid, 0, true) as statement, c2.reltablespace
|
||||
FROM pg_catalog.pg_class c, pg_catalog.pg_class c2, pg_catalog.pg_index i
|
||||
WHERE c.oid = (
|
||||
SELECT c.oid
|
||||
FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
|
||||
WHERE c.relname ~ '^(" . $table . ")$'
|
||||
AND pg_catalog.pg_table_is_visible(c.oid)
|
||||
AND n.nspname ~ '^(" . $this->config['schema'] . ")$'
|
||||
)
|
||||
AND c.oid = i.indrelid AND i.indexrelid = c2.oid
|
||||
ORDER BY i.indisprimary DESC, i.indisunique DESC, c2.relname", false);
|
||||
foreach ($indexes as $info) {
|
||||
$key = array_pop($info);
|
||||
if ($key['indisprimary']) {
|
||||
$key['relname'] = 'PRIMARY';
|
||||
}
|
||||
preg_match('/\(([^\)]+)\)/', $key['statement'], $indexColumns);
|
||||
$parsedColumn = $indexColumns[1];
|
||||
if (strpos($indexColumns[1], ',') !== false) {
|
||||
$parsedColumn = explode(', ', $indexColumns[1]);
|
||||
}
|
||||
$index[$key['relname']]['unique'] = $key['indisunique'];
|
||||
$index[$key['relname']]['column'] = $parsedColumn;
|
||||
}
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Alter the Schema of a table.
|
||||
*
|
||||
* @param array $compare Results of CakeSchema::compare()
|
||||
* @param string $table name of the table
|
||||
* @return array
|
||||
*/
|
||||
public function alterSchema($compare, $table = null) {
|
||||
if (!is_array($compare)) {
|
||||
return false;
|
||||
}
|
||||
$out = '';
|
||||
$colList = array();
|
||||
foreach ($compare as $curTable => $types) {
|
||||
$indexes = $colList = array();
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'ALTER TABLE ' . $this->fullTableName($curTable) . " \n";
|
||||
foreach ($types as $type => $column) {
|
||||
if (isset($column['indexes'])) {
|
||||
$indexes[$type] = $column['indexes'];
|
||||
unset($column['indexes']);
|
||||
}
|
||||
switch ($type) {
|
||||
case 'add':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$colList[] = 'ADD COLUMN ' . $this->buildColumn($col);
|
||||
}
|
||||
break;
|
||||
case 'drop':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$colList[] = 'DROP COLUMN ' . $this->name($field);
|
||||
}
|
||||
break;
|
||||
case 'change':
|
||||
foreach ($column as $field => $col) {
|
||||
if (!isset($col['name'])) {
|
||||
$col['name'] = $field;
|
||||
}
|
||||
$fieldName = $this->name($field);
|
||||
|
||||
$default = isset($col['default']) ? $col['default'] : null;
|
||||
$nullable = isset($col['null']) ? $col['null'] : null;
|
||||
unset($col['default'], $col['null']);
|
||||
$colList[] = 'ALTER COLUMN ' . $fieldName . ' TYPE ' . str_replace(array($fieldName, 'NOT NULL'), '', $this->buildColumn($col));
|
||||
if (isset($nullable)) {
|
||||
$nullable = ($nullable) ? 'DROP NOT NULL' : 'SET NOT NULL';
|
||||
$colList[] = 'ALTER COLUMN ' . $fieldName . ' ' . $nullable;
|
||||
}
|
||||
|
||||
if (isset($default)) {
|
||||
$colList[] = 'ALTER COLUMN ' . $fieldName . ' SET DEFAULT ' . $this->value($default, $col['type']);
|
||||
} else {
|
||||
$colList[] = 'ALTER COLUMN ' . $fieldName . ' DROP DEFAULT';
|
||||
}
|
||||
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['drop']['PRIMARY'])) {
|
||||
$colList[] = 'DROP CONSTRAINT ' . $curTable . '_pkey';
|
||||
}
|
||||
if (isset($indexes['add']['PRIMARY'])) {
|
||||
$cols = $indexes['add']['PRIMARY']['column'];
|
||||
if (is_array($cols)) {
|
||||
$cols = implode(', ', $cols);
|
||||
}
|
||||
$colList[] = 'ADD PRIMARY KEY (' . $cols . ')';
|
||||
}
|
||||
|
||||
if (!empty($colList)) {
|
||||
$out .= "\t" . implode(",\n\t", $colList) . ";\n\n";
|
||||
} else {
|
||||
$out = '';
|
||||
}
|
||||
$out .= implode(";\n\t", $this->_alterIndexes($curTable, $indexes));
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate PostgreSQL index alteration statements for a table.
|
||||
*
|
||||
* @param string $table Table to alter indexes for
|
||||
* @param array $indexes Indexes to add and drop
|
||||
* @return array Index alteration statements
|
||||
*/
|
||||
protected function _alterIndexes($table, $indexes) {
|
||||
$alter = array();
|
||||
if (isset($indexes['drop'])) {
|
||||
foreach ($indexes['drop'] as $name => $value) {
|
||||
$out = 'DROP ';
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
} else {
|
||||
$out .= 'INDEX ' . $name;
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['add'])) {
|
||||
foreach ($indexes['add'] as $name => $value) {
|
||||
$out = 'CREATE ';
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
} else {
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
$out .= 'INDEX ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$out .= $name . ' ON ' . $table . ' (' . implode(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
|
||||
} else {
|
||||
$out .= $name . ' ON ' . $table . ' (' . $this->name($value['column']) . ')';
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
return $alter;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
public function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
|
||||
$rt = ' LIMIT';
|
||||
}
|
||||
|
||||
$rt .= ' ' . $limit;
|
||||
if ($offset) {
|
||||
$rt .= ' OFFSET ' . $offset;
|
||||
}
|
||||
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
public function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '(' . $real['limit'] . ')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = str_replace(')', '', $real);
|
||||
$limit = null;
|
||||
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
|
||||
$floats = array(
|
||||
'float', 'float4', 'float8', 'double', 'double precision', 'decimal', 'real', 'numeric'
|
||||
);
|
||||
|
||||
switch (true) {
|
||||
case (in_array($col, array('date', 'time', 'inet', 'boolean'))):
|
||||
return $col;
|
||||
case (strpos($col, 'timestamp') !== false):
|
||||
return 'datetime';
|
||||
case (strpos($col, 'time') === 0):
|
||||
return 'time';
|
||||
case (strpos($col, 'int') !== false && $col != 'interval'):
|
||||
return 'integer';
|
||||
case (strpos($col, 'char') !== false || $col == 'uuid'):
|
||||
return 'string';
|
||||
case (strpos($col, 'text') !== false):
|
||||
return 'text';
|
||||
case (strpos($col, 'bytea') !== false):
|
||||
return 'binary';
|
||||
case (in_array($col, $floats)):
|
||||
return 'float';
|
||||
default:
|
||||
return 'text';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the length of a database-native column description, or null if no length
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return integer An integer representing the length of the column
|
||||
*/
|
||||
public function length($real) {
|
||||
$col = str_replace(array(')', 'unsigned'), '', $real);
|
||||
$limit = null;
|
||||
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
if ($col == 'uuid') {
|
||||
return 36;
|
||||
}
|
||||
if ($limit != null) {
|
||||
return intval($limit);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* resultSet method
|
||||
*
|
||||
* @param array $results
|
||||
* @return void
|
||||
*/
|
||||
public function resultSet(&$results) {
|
||||
$this->map = array();
|
||||
$numFields = $results->columnCount();
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
|
||||
while ($j < $numFields) {
|
||||
$column = $results->getColumnMeta($j);
|
||||
if (strpos($column['name'], '__')) {
|
||||
list($table, $name) = explode('__', $column['name']);
|
||||
$this->map[$index++] = array($table, $name, $column['native_type']);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $column['name'], $column['native_type']);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
public function fetchResult() {
|
||||
if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
|
||||
$resultRow = array();
|
||||
|
||||
foreach ($this->map as $index => $meta) {
|
||||
list($table, $column, $type) = $meta;
|
||||
|
||||
switch ($type) {
|
||||
case 'bool':
|
||||
$resultRow[$table][$column] = is_null($row[$index]) ? null : $this->boolean($row[$index]);
|
||||
break;
|
||||
case 'binary':
|
||||
case 'bytea':
|
||||
$resultRow[$table][$column] = is_null($row[$index]) ? null : stream_get_contents($row[$index]);
|
||||
break;
|
||||
default:
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
break;
|
||||
}
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
$this->_result->closeCursor();
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Translates between PHP boolean values and PostgreSQL boolean values
|
||||
*
|
||||
* @param mixed $data Value to be translated
|
||||
* @param boolean $quote true to quote a boolean to be used in a query, false to return the boolean value
|
||||
* @return boolean Converted boolean value
|
||||
*/
|
||||
public function boolean($data, $quote = false) {
|
||||
switch (true) {
|
||||
case ($data === true || $data === false):
|
||||
$result = $data;
|
||||
break;
|
||||
case ($data === 't' || $data === 'f'):
|
||||
$result = ($data === 't');
|
||||
break;
|
||||
case ($data === 'true' || $data === 'false'):
|
||||
$result = ($data === 'true');
|
||||
break;
|
||||
case ($data === 'TRUE' || $data === 'FALSE'):
|
||||
$result = ($data === 'TRUE');
|
||||
break;
|
||||
default:
|
||||
$result = (bool)$data;
|
||||
break;
|
||||
}
|
||||
|
||||
if ($quote) {
|
||||
return ($result) ? 'TRUE' : 'FALSE';
|
||||
}
|
||||
return (bool)$result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the database encoding
|
||||
*
|
||||
* @param mixed $enc Database encoding
|
||||
* @return boolean True on success, false on failure
|
||||
*/
|
||||
public function setEncoding($enc) {
|
||||
return $this->_execute('SET NAMES ' . $this->value($enc)) !== false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
public function getEncoding() {
|
||||
$result = $this->_execute('SHOW client_encoding')->fetch();
|
||||
if ($result === false) {
|
||||
return false;
|
||||
}
|
||||
return (isset($result['client_encoding'])) ? $result['client_encoding'] : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a Postgres-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the following:
|
||||
* array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
public function buildColumn($column) {
|
||||
$col = $this->columns[$column['type']];
|
||||
if (!isset($col['length']) && !isset($col['limit'])) {
|
||||
unset($column['length']);
|
||||
}
|
||||
$out = preg_replace('/integer\([0-9]+\)/', 'integer', parent::buildColumn($column));
|
||||
$out = str_replace('integer serial', 'serial', $out);
|
||||
if (strpos($out, 'timestamp DEFAULT')) {
|
||||
if (isset($column['null']) && $column['null']) {
|
||||
$out = str_replace('DEFAULT NULL', '', $out);
|
||||
} else {
|
||||
$out = str_replace('DEFAULT NOT NULL', '', $out);
|
||||
}
|
||||
}
|
||||
if (strpos($out, 'DEFAULT DEFAULT')) {
|
||||
if (isset($column['null']) && $column['null']) {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT NULL', $out);
|
||||
} elseif (in_array($column['type'], array('integer', 'float'))) {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT 0', $out);
|
||||
} elseif ($column['type'] == 'boolean') {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT FALSE', $out);
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format indexes for create table
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
public function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
if (!is_array($indexes)) {
|
||||
return array();
|
||||
}
|
||||
foreach ($indexes as $name => $value) {
|
||||
if ($name == 'PRIMARY') {
|
||||
$out = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
|
||||
} else {
|
||||
$out = 'CREATE ';
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$out .= "INDEX {$name} ON {$table}({$value['column']});";
|
||||
}
|
||||
$join[] = $out;
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::renderStatement to handle schema generation with Postgres-style indexes
|
||||
*
|
||||
* @param string $type
|
||||
* @param array $data
|
||||
* @return string
|
||||
*/
|
||||
public function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'schema':
|
||||
extract($data);
|
||||
|
||||
foreach ($indexes as $i => $index) {
|
||||
if (preg_match('/PRIMARY KEY/', $index)) {
|
||||
unset($indexes[$i]);
|
||||
$columns[] = $index;
|
||||
break;
|
||||
}
|
||||
}
|
||||
$join = array('columns' => ",\n\t", 'indexes' => "\n");
|
||||
|
||||
foreach (array('columns', 'indexes') as $var) {
|
||||
if (is_array(${$var})) {
|
||||
${$var} = implode($join[$var], array_filter(${$var}));
|
||||
}
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n\t{$columns}\n);\n{$indexes}";
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the schema name
|
||||
*
|
||||
* @return string The schema name
|
||||
*/
|
||||
public function getSchemaName() {
|
||||
return $this->config['schema'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the server support nested transactions
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function nestedTransactionSupported() {
|
||||
return $this->useNestedTransactions && version_compare($this->getVersion(), '8.0', '>=');
|
||||
}
|
||||
|
||||
}
|
||||
574
lib/Cake/Model/Datasource/Database/Sqlite.php
Normal file
574
lib/Cake/Model/Datasource/Database/Sqlite.php
Normal file
|
|
@ -0,0 +1,574 @@
|
|||
<?php
|
||||
/**
|
||||
* SQLite layer for DBO
|
||||
*
|
||||
* PHP 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package Cake.Model.Datasource.Database
|
||||
* @since CakePHP(tm) v 0.9.0
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
App::uses('DboSource', 'Model/Datasource');
|
||||
App::uses('String', 'Utility');
|
||||
|
||||
/**
|
||||
* DBO implementation for the SQLite3 DBMS.
|
||||
*
|
||||
* A DboSource adapter for SQLite 3 using PDO
|
||||
*
|
||||
* @package Cake.Model.Datasource.Database
|
||||
*/
|
||||
class Sqlite extends DboSource {
|
||||
|
||||
/**
|
||||
* Datasource Description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $description = "SQLite DBO Driver";
|
||||
|
||||
/**
|
||||
* Quote Start
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $startQuote = '"';
|
||||
|
||||
/**
|
||||
* Quote End
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $endQuote = '"';
|
||||
|
||||
/**
|
||||
* Base configuration settings for SQLite3 driver
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_baseConfig = array(
|
||||
'persistent' => false,
|
||||
'database' => null
|
||||
);
|
||||
|
||||
/**
|
||||
* SQLite3 column definition
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
public $columns = array(
|
||||
'primary_key' => array('name' => 'integer primary key autoincrement'),
|
||||
'string' => array('name' => 'varchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'text'),
|
||||
'integer' => array('name' => 'integer', 'limit' => null, 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'float', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'blob'),
|
||||
'boolean' => array('name' => 'boolean')
|
||||
);
|
||||
|
||||
/**
|
||||
* List of engine specific additional field parameters used on table creating
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
public $fieldParameters = array(
|
||||
'collate' => array(
|
||||
'value' => 'COLLATE',
|
||||
'quote' => false,
|
||||
'join' => ' ',
|
||||
'column' => 'Collate',
|
||||
'position' => 'afterDefault',
|
||||
'options' => array(
|
||||
'BINARY', 'NOCASE', 'RTRIM'
|
||||
)
|
||||
),
|
||||
);
|
||||
|
||||
/**
|
||||
* Connects to the database using config['database'] as a filename.
|
||||
*
|
||||
* @return boolean
|
||||
* @throws MissingConnectionException
|
||||
*/
|
||||
public function connect() {
|
||||
$config = $this->config;
|
||||
$flags = array(
|
||||
PDO::ATTR_PERSISTENT => $config['persistent'],
|
||||
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
|
||||
);
|
||||
try {
|
||||
$this->_connection = new PDO('sqlite:' . $config['database'], null, null, $flags);
|
||||
$this->connected = true;
|
||||
} catch(PDOException $e) {
|
||||
throw new MissingConnectionException(array(
|
||||
'class' => get_class($this),
|
||||
'message' => $e->getMessage()
|
||||
));
|
||||
}
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check whether the SQLite extension is installed/loaded
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function enabled() {
|
||||
return in_array('sqlite', PDO::getAvailableDrivers());
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
|
||||
*
|
||||
* @param mixed $data
|
||||
* @return array Array of table names in the database
|
||||
*/
|
||||
public function listSources($data = null) {
|
||||
$cache = parent::listSources();
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
|
||||
$result = $this->fetchAll("SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;", false);
|
||||
|
||||
if (!$result || empty($result)) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
foreach ($result as $table) {
|
||||
$tables[] = $table[0]['name'];
|
||||
}
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param Model|string $model Either the model or table name you want described.
|
||||
* @return array Fields in table. Keys are name and type
|
||||
*/
|
||||
public function describe($model) {
|
||||
$table = $this->fullTableName($model, false, false);
|
||||
$cache = parent::describe($table);
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$fields = array();
|
||||
$result = $this->_execute(
|
||||
'PRAGMA table_info(' . $this->value($table, 'string') . ')'
|
||||
);
|
||||
|
||||
foreach ($result as $column) {
|
||||
$column = (array)$column;
|
||||
$default = ($column['dflt_value'] === 'NULL') ? null : trim($column['dflt_value'], "'");
|
||||
|
||||
$fields[$column['name']] = array(
|
||||
'type' => $this->column($column['type']),
|
||||
'null' => !$column['notnull'],
|
||||
'default' => $default,
|
||||
'length' => $this->length($column['type'])
|
||||
);
|
||||
if ($column['pk'] == 1) {
|
||||
$fields[$column['name']]['key'] = $this->index['PRI'];
|
||||
$fields[$column['name']]['null'] = false;
|
||||
if (empty($fields[$column['name']]['length'])) {
|
||||
$fields[$column['name']]['length'] = 11;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
$result->closeCursor();
|
||||
$this->_cacheDescription($table, $fields);
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
|
||||
* @return array
|
||||
*/
|
||||
public function update(Model $model, $fields = array(), $values = null, $conditions = null) {
|
||||
if (empty($values) && !empty($fields)) {
|
||||
foreach ($fields as $field => $value) {
|
||||
if (strpos($field, $model->alias . '.') !== false) {
|
||||
unset($fields[$field]);
|
||||
$field = str_replace($model->alias . '.', "", $field);
|
||||
$field = str_replace($model->alias . '.', "", $field);
|
||||
$fields[$field] = $value;
|
||||
}
|
||||
}
|
||||
}
|
||||
return parent::update($model, $fields, $values, $conditions);
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all the records in a table and resets the count of the auto-incrementing
|
||||
* primary key, where applicable.
|
||||
*
|
||||
* @param string|Model $table A string or model class representing the table to be truncated
|
||||
* @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
|
||||
*/
|
||||
public function truncate($table) {
|
||||
$this->_execute('DELETE FROM sqlite_sequence where name=' . $this->startQuote . $this->fullTableName($table, false, false) . $this->endQuote);
|
||||
return $this->execute('DELETE FROM ' . $this->fullTableName($table));
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
public function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '(' . $real['limit'] . ')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = strtolower(str_replace(')', '', $real));
|
||||
$limit = null;
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
|
||||
if (in_array($col, array('text', 'integer', 'float', 'boolean', 'timestamp', 'date', 'datetime', 'time'))) {
|
||||
return $col;
|
||||
}
|
||||
if (strpos($col, 'char') !== false) {
|
||||
return 'string';
|
||||
}
|
||||
if (in_array($col, array('blob', 'clob'))) {
|
||||
return 'binary';
|
||||
}
|
||||
if (strpos($col, 'numeric') !== false || strpos($col, 'decimal') !== false) {
|
||||
return 'float';
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate ResultSet
|
||||
*
|
||||
* @param mixed $results
|
||||
* @return void
|
||||
*/
|
||||
public function resultSet($results) {
|
||||
$this->results = $results;
|
||||
$this->map = array();
|
||||
$numFields = $results->columnCount();
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
|
||||
//PDO::getColumnMeta is experimental and does not work with sqlite3,
|
||||
// so try to figure it out based on the querystring
|
||||
$querystring = $results->queryString;
|
||||
if (stripos($querystring, 'SELECT') === 0) {
|
||||
$last = strripos($querystring, 'FROM');
|
||||
if ($last !== false) {
|
||||
$selectpart = substr($querystring, 7, $last - 8);
|
||||
$selects = String::tokenize($selectpart, ',', '(', ')');
|
||||
}
|
||||
} elseif (strpos($querystring, 'PRAGMA table_info') === 0) {
|
||||
$selects = array('cid', 'name', 'type', 'notnull', 'dflt_value', 'pk');
|
||||
} elseif (strpos($querystring, 'PRAGMA index_list') === 0) {
|
||||
$selects = array('seq', 'name', 'unique');
|
||||
} elseif (strpos($querystring, 'PRAGMA index_info') === 0) {
|
||||
$selects = array('seqno', 'cid', 'name');
|
||||
}
|
||||
while ($j < $numFields) {
|
||||
if (!isset($selects[$j])) {
|
||||
$j++;
|
||||
continue;
|
||||
}
|
||||
if (preg_match('/\bAS\s+(.*)/i', $selects[$j], $matches)) {
|
||||
$columnName = trim($matches[1], '"');
|
||||
} else {
|
||||
$columnName = trim(str_replace('"', '', $selects[$j]));
|
||||
}
|
||||
|
||||
if (strpos($selects[$j], 'DISTINCT') === 0) {
|
||||
$columnName = str_ireplace('DISTINCT', '', $columnName);
|
||||
}
|
||||
|
||||
$metaType = false;
|
||||
try {
|
||||
$metaData = (array)$results->getColumnMeta($j);
|
||||
if (!empty($metaData['sqlite:decl_type'])) {
|
||||
$metaType = trim($metaData['sqlite:decl_type']);
|
||||
}
|
||||
} catch (Exception $e) {
|
||||
}
|
||||
|
||||
if (strpos($columnName, '.')) {
|
||||
$parts = explode('.', $columnName);
|
||||
$this->map[$index++] = array(trim($parts[0]), trim($parts[1]), $metaType);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $columnName, $metaType);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return mixed array with results fetched and mapped to column names or false if there is no results left to fetch
|
||||
*/
|
||||
public function fetchResult() {
|
||||
if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
|
||||
$resultRow = array();
|
||||
foreach ($this->map as $col => $meta) {
|
||||
list($table, $column, $type) = $meta;
|
||||
$resultRow[$table][$column] = $row[$col];
|
||||
if ($type == 'boolean' && !is_null($row[$col])) {
|
||||
$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]);
|
||||
}
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
$this->_result->closeCursor();
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
public function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
|
||||
$rt = ' LIMIT';
|
||||
}
|
||||
$rt .= ' ' . $limit;
|
||||
if ($offset) {
|
||||
$rt .= ' OFFSET ' . $offset;
|
||||
}
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a database-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
public function buildColumn($column) {
|
||||
$name = $type = null;
|
||||
$column = array_merge(array('null' => true), $column);
|
||||
extract($column);
|
||||
|
||||
if (empty($name) || empty($type)) {
|
||||
trigger_error(__d('cake_dev', 'Column name or type not defined in schema'), E_USER_WARNING);
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!isset($this->columns[$type])) {
|
||||
trigger_error(__d('cake_dev', 'Column type %s does not exist', $type), E_USER_WARNING);
|
||||
return null;
|
||||
}
|
||||
|
||||
if (isset($column['key']) && $column['key'] == 'primary' && $type == 'integer') {
|
||||
return $this->name($name) . ' ' . $this->columns['primary_key']['name'];
|
||||
}
|
||||
return parent::buildColumn($column);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the database encoding
|
||||
*
|
||||
* @param string $enc Database encoding
|
||||
* @return boolean
|
||||
*/
|
||||
public function setEncoding($enc) {
|
||||
if (!in_array($enc, array("UTF-8", "UTF-16", "UTF-16le", "UTF-16be"))) {
|
||||
return false;
|
||||
}
|
||||
return $this->_execute("PRAGMA encoding = \"{$enc}\"") !== false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
public function getEncoding() {
|
||||
return $this->fetchRow('PRAGMA encoding');
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes redundant primary key indexes, as they are handled in the column def of the key.
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
public function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
|
||||
$table = str_replace('"', '', $table);
|
||||
list($dbname, $table) = explode('.', $table);
|
||||
$dbname = $this->name($dbname);
|
||||
|
||||
foreach ($indexes as $name => $value) {
|
||||
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
}
|
||||
$out = 'CREATE ';
|
||||
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = join(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$t = trim($table, '"');
|
||||
$indexname = $this->name($t . '_' . $name);
|
||||
$table = $this->name($table);
|
||||
$out .= "INDEX {$dbname}.{$indexname} ON {$table}({$value['column']});";
|
||||
$join[] = $out;
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::index to handle SQLite index introspection
|
||||
* Returns an array of the indexes in given table name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
||||
public function index($model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model, false, false);
|
||||
if ($table) {
|
||||
$indexes = $this->query('PRAGMA index_list(' . $table . ')');
|
||||
|
||||
if (is_bool($indexes)) {
|
||||
return array();
|
||||
}
|
||||
foreach ($indexes as $info) {
|
||||
$key = array_pop($info);
|
||||
$keyInfo = $this->query('PRAGMA index_info("' . $key['name'] . '")');
|
||||
foreach ($keyInfo as $keyCol) {
|
||||
if (!isset($index[$key['name']])) {
|
||||
$col = array();
|
||||
if (preg_match('/autoindex/', $key['name'])) {
|
||||
$key['name'] = 'PRIMARY';
|
||||
}
|
||||
$index[$key['name']]['column'] = $keyCol[0]['name'];
|
||||
$index[$key['name']]['unique'] = intval($key['unique'] == 1);
|
||||
} else {
|
||||
if (!is_array($index[$key['name']]['column'])) {
|
||||
$col[] = $index[$key['name']]['column'];
|
||||
}
|
||||
$col[] = $keyCol[0]['name'];
|
||||
$index[$key['name']]['column'] = $col;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::renderStatement to handle schema generation with SQLite-style indexes
|
||||
*
|
||||
* @param string $type
|
||||
* @param array $data
|
||||
* @return string
|
||||
*/
|
||||
public function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'schema':
|
||||
extract($data);
|
||||
if (is_array($columns)) {
|
||||
$columns = "\t" . join(",\n\t", array_filter($columns));
|
||||
}
|
||||
if (is_array($indexes)) {
|
||||
$indexes = "\t" . join("\n\t", array_filter($indexes));
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}";
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* PDO deals in objects, not resources, so overload accordingly.
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function hasResult() {
|
||||
return is_object($this->_result);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a "drop table" statement for the given Schema object
|
||||
*
|
||||
* @param CakeSchema $schema An instance of a subclass of CakeSchema
|
||||
* @param string $table Optional. If specified only the table name given will be generated.
|
||||
* Otherwise, all tables defined in the schema are generated.
|
||||
* @return string
|
||||
*/
|
||||
public function dropSchema(CakeSchema $schema, $table = null) {
|
||||
$out = '';
|
||||
foreach ($schema->tables as $curTable => $columns) {
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'DROP TABLE IF EXISTS ' . $this->fullTableName($curTable) . ";\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the schema name
|
||||
*
|
||||
* @return string The schema name
|
||||
*/
|
||||
public function getSchemaName() {
|
||||
return "main"; // Sqlite Datasource does not support multidb
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the server support nested transactions
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function nestedTransactionSupported() {
|
||||
return $this->useNestedTransactions && version_compare($this->getVersion(), '3.6.8', '>=');
|
||||
}
|
||||
|
||||
}
|
||||
789
lib/Cake/Model/Datasource/Database/Sqlserver.php
Normal file
789
lib/Cake/Model/Datasource/Database/Sqlserver.php
Normal file
|
|
@ -0,0 +1,789 @@
|
|||
<?php
|
||||
/**
|
||||
* MS SQL Server layer for DBO
|
||||
*
|
||||
* PHP 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package Cake.Model.Datasource.Database
|
||||
* @since CakePHP(tm) v 0.10.5.1790
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
App::uses('DboSource', 'Model/Datasource');
|
||||
|
||||
/**
|
||||
* Dbo driver for SQLServer
|
||||
*
|
||||
* A Dbo driver for SQLServer 2008 and higher. Requires the `sqlsrv`
|
||||
* and `pdo_sqlsrv` extensions to be enabled.
|
||||
*
|
||||
* @package Cake.Model.Datasource.Database
|
||||
*/
|
||||
class Sqlserver extends DboSource {
|
||||
|
||||
/**
|
||||
* Driver description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $description = "SQL Server DBO Driver";
|
||||
|
||||
/**
|
||||
* Starting quote character for quoted identifiers
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $startQuote = "[";
|
||||
|
||||
/**
|
||||
* Ending quote character for quoted identifiers
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
public $endQuote = "]";
|
||||
|
||||
/**
|
||||
* Creates a map between field aliases and numeric indexes. Workaround for the
|
||||
* SQL Server driver's 30-character column name limitation.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_fieldMappings = array();
|
||||
|
||||
/**
|
||||
* Storing the last affected value
|
||||
*
|
||||
* @var mixed
|
||||
*/
|
||||
protected $_lastAffected = false;
|
||||
|
||||
/**
|
||||
* Base configuration settings for MS SQL driver
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'host' => 'localhost\SQLEXPRESS',
|
||||
'login' => '',
|
||||
'password' => '',
|
||||
'database' => 'cake',
|
||||
'schema' => '',
|
||||
);
|
||||
|
||||
/**
|
||||
* MS SQL column definition
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
public $columns = array(
|
||||
'primary_key' => array('name' => 'IDENTITY (1, 1) NOT NULL'),
|
||||
'string' => array('name' => 'nvarchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'nvarchar', 'limit' => 'MAX'),
|
||||
'integer' => array('name' => 'int', 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'numeric', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'datetime', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'datetime', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'varbinary'),
|
||||
'boolean' => array('name' => 'bit')
|
||||
);
|
||||
|
||||
/**
|
||||
* Magic column name used to provide pagination support for SQLServer 2008
|
||||
* which lacks proper limit/offset support.
|
||||
*/
|
||||
const ROW_COUNTER = '_cake_page_rownum_';
|
||||
|
||||
/**
|
||||
* Connects to the database using options in the given configuration array.
|
||||
*
|
||||
* @return boolean True if the database could be connected, else false
|
||||
* @throws MissingConnectionException
|
||||
*/
|
||||
public function connect() {
|
||||
$config = $this->config;
|
||||
$this->connected = false;
|
||||
try {
|
||||
$flags = array(
|
||||
PDO::ATTR_PERSISTENT => $config['persistent'],
|
||||
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
|
||||
);
|
||||
if (!empty($config['encoding'])) {
|
||||
$flags[PDO::SQLSRV_ATTR_ENCODING] = $config['encoding'];
|
||||
}
|
||||
$this->_connection = new PDO(
|
||||
"sqlsrv:server={$config['host']};Database={$config['database']}",
|
||||
$config['login'],
|
||||
$config['password'],
|
||||
$flags
|
||||
);
|
||||
$this->connected = true;
|
||||
} catch (PDOException $e) {
|
||||
throw new MissingConnectionException(array(
|
||||
'class' => get_class($this),
|
||||
'message' => $e->getMessage()
|
||||
));
|
||||
}
|
||||
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check that PDO SQL Server is installed/loaded
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
public function enabled() {
|
||||
return in_array('sqlsrv', PDO::getAvailableDrivers());
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of sources (tables) in the database.
|
||||
*
|
||||
* @param mixed $data
|
||||
* @return array Array of table names in the database
|
||||
*/
|
||||
public function listSources($data = null) {
|
||||
$cache = parent::listSources();
|
||||
if ($cache !== null) {
|
||||
return $cache;
|
||||
}
|
||||
$result = $this->_execute("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES");
|
||||
|
||||
if (!$result) {
|
||||
$result->closeCursor();
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
|
||||
while ($line = $result->fetch(PDO::FETCH_NUM)) {
|
||||
$tables[] = $line[0];
|
||||
}
|
||||
|
||||
$result->closeCursor();
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param Model|string $model Model object to describe, or a string table name.
|
||||
* @return array Fields in table. Keys are name and type
|
||||
* @throws CakeException
|
||||
*/
|
||||
public function describe($model) {
|
||||
$table = $this->fullTableName($model, false);
|
||||
$cache = parent::describe($table);
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$fields = array();
|
||||
$table = $this->fullTableName($model, false);
|
||||
$cols = $this->_execute(
|
||||
"SELECT
|
||||
COLUMN_NAME as Field,
|
||||
DATA_TYPE as Type,
|
||||
COL_LENGTH('" . $table . "', COLUMN_NAME) as Length,
|
||||
IS_NULLABLE As [Null],
|
||||
COLUMN_DEFAULT as [Default],
|
||||
COLUMNPROPERTY(OBJECT_ID('" . $table . "'), COLUMN_NAME, 'IsIdentity') as [Key],
|
||||
NUMERIC_SCALE as Size
|
||||
FROM INFORMATION_SCHEMA.COLUMNS
|
||||
WHERE TABLE_NAME = '" . $table . "'"
|
||||
);
|
||||
if (!$cols) {
|
||||
throw new CakeException(__d('cake_dev', 'Could not describe table for %s', $table));
|
||||
}
|
||||
|
||||
while ($column = $cols->fetch(PDO::FETCH_OBJ)) {
|
||||
$field = $column->Field;
|
||||
$fields[$field] = array(
|
||||
'type' => $this->column($column),
|
||||
'null' => ($column->Null === 'YES' ? true : false),
|
||||
'default' => preg_replace("/^[(]{1,2}'?([^')]*)?'?[)]{1,2}$/", "$1", $column->Default),
|
||||
'length' => $this->length($column),
|
||||
'key' => ($column->Key == '1') ? 'primary' : false
|
||||
);
|
||||
|
||||
if ($fields[$field]['default'] === 'null') {
|
||||
$fields[$field]['default'] = null;
|
||||
} else {
|
||||
$this->value($fields[$field]['default'], $fields[$field]['type']);
|
||||
}
|
||||
|
||||
if ($fields[$field]['key'] !== false && $fields[$field]['type'] == 'integer') {
|
||||
$fields[$field]['length'] = 11;
|
||||
} elseif ($fields[$field]['key'] === false) {
|
||||
unset($fields[$field]['key']);
|
||||
}
|
||||
if (in_array($fields[$field]['type'], array('date', 'time', 'datetime', 'timestamp'))) {
|
||||
$fields[$field]['length'] = null;
|
||||
}
|
||||
if ($fields[$field]['type'] == 'float' && !empty($column->Size)) {
|
||||
$fields[$field]['length'] = $fields[$field]['length'] . ',' . $column->Size;
|
||||
}
|
||||
}
|
||||
$this->_cacheDescription($table, $fields);
|
||||
$cols->closeCursor();
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates the fields list of an SQL query.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param string $alias Alias table name
|
||||
* @param array $fields
|
||||
* @param boolean $quote
|
||||
* @return array
|
||||
*/
|
||||
public function fields(Model $model, $alias = null, $fields = array(), $quote = true) {
|
||||
if (empty($alias)) {
|
||||
$alias = $model->alias;
|
||||
}
|
||||
$fields = parent::fields($model, $alias, $fields, false);
|
||||
$count = count($fields);
|
||||
|
||||
if ($count >= 1 && strpos($fields[0], 'COUNT(*)') === false) {
|
||||
$result = array();
|
||||
for ($i = 0; $i < $count; $i++) {
|
||||
$prepend = '';
|
||||
|
||||
if (strpos($fields[$i], 'DISTINCT') !== false) {
|
||||
$prepend = 'DISTINCT ';
|
||||
$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
|
||||
}
|
||||
|
||||
if (!preg_match('/\s+AS\s+/i', $fields[$i])) {
|
||||
if (substr($fields[$i], -1) == '*') {
|
||||
if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$AssociatedModel = $model->{$build[0]};
|
||||
} else {
|
||||
$AssociatedModel = $model;
|
||||
}
|
||||
|
||||
$_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
|
||||
$result = array_merge($result, $_fields);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (strpos($fields[$i], '.') === false) {
|
||||
$this->_fieldMappings[$alias . '__' . $fields[$i]] = $alias . '.' . $fields[$i];
|
||||
$fieldName = $this->name($alias . '.' . $fields[$i]);
|
||||
$fieldAlias = $this->name($alias . '__' . $fields[$i]);
|
||||
} else {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$build[0] = trim($build[0], '[]');
|
||||
$build[1] = trim($build[1], '[]');
|
||||
$name = $build[0] . '.' . $build[1];
|
||||
$alias = $build[0] . '__' . $build[1];
|
||||
|
||||
$this->_fieldMappings[$alias] = $name;
|
||||
$fieldName = $this->name($name);
|
||||
$fieldAlias = $this->name($alias);
|
||||
}
|
||||
if ($model->getColumnType($fields[$i]) == 'datetime') {
|
||||
$fieldName = "CONVERT(VARCHAR(20), {$fieldName}, 20)";
|
||||
}
|
||||
$fields[$i] = "{$fieldName} AS {$fieldAlias}";
|
||||
}
|
||||
$result[] = $prepend . $fields[$i];
|
||||
}
|
||||
return $result;
|
||||
} else {
|
||||
return $fields;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL INSERT statement for given model, fields, and values.
|
||||
* Removes Identity (primary key) column from update data before returning to parent, if
|
||||
* value is empty.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @return array
|
||||
*/
|
||||
public function create(Model $model, $fields = null, $values = null) {
|
||||
if (!empty($values)) {
|
||||
$fields = array_combine($fields, $values);
|
||||
}
|
||||
$primaryKey = $this->_getPrimaryKey($model);
|
||||
|
||||
if (array_key_exists($primaryKey, $fields)) {
|
||||
if (empty($fields[$primaryKey])) {
|
||||
unset($fields[$primaryKey]);
|
||||
} else {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' ON');
|
||||
}
|
||||
}
|
||||
$result = parent::create($model, array_keys($fields), array_values($fields));
|
||||
if (array_key_exists($primaryKey, $fields) && !empty($fields[$primaryKey])) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' OFF');
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
||||
* Removes Identity (primary key) column from update data before returning to parent.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
|
||||
* @return array
|
||||
*/
|
||||
public function update(Model $model, $fields = array(), $values = null, $conditions = null) {
|
||||
if (!empty($values)) {
|
||||
$fields = array_combine($fields, $values);
|
||||
}
|
||||
if (isset($fields[$model->primaryKey])) {
|
||||
unset($fields[$model->primaryKey]);
|
||||
}
|
||||
if (empty($fields)) {
|
||||
return true;
|
||||
}
|
||||
return parent::update($model, array_keys($fields), array_values($fields), $conditions);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
public function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) {
|
||||
$rt = ' TOP';
|
||||
}
|
||||
$rt .= ' ' . $limit;
|
||||
if (is_int($offset) && $offset > 0) {
|
||||
$rt = ' OFFSET ' . intval($offset) . ' ROWS FETCH FIRST ' . intval($limit) . ' ROWS ONLY';
|
||||
}
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param mixed $real Either the string value of the fields type.
|
||||
* or the Result object from Sqlserver::describe()
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
public function column($real) {
|
||||
$limit = null;
|
||||
$col = $real;
|
||||
if (is_object($real) && isset($real->Field)) {
|
||||
$limit = $real->Length;
|
||||
$col = $real->Type;
|
||||
}
|
||||
|
||||
if ($col == 'datetime2') {
|
||||
return 'datetime';
|
||||
}
|
||||
if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
|
||||
return $col;
|
||||
}
|
||||
if ($col == 'bit') {
|
||||
return 'boolean';
|
||||
}
|
||||
if (strpos($col, 'int') !== false) {
|
||||
return 'integer';
|
||||
}
|
||||
if (strpos($col, 'char') !== false && $limit == -1) {
|
||||
return 'text';
|
||||
}
|
||||
if (strpos($col, 'char') !== false) {
|
||||
return 'string';
|
||||
}
|
||||
if (strpos($col, 'text') !== false) {
|
||||
return 'text';
|
||||
}
|
||||
if (strpos($col, 'binary') !== false || $col == 'image') {
|
||||
return 'binary';
|
||||
}
|
||||
if (in_array($col, array('float', 'real', 'decimal', 'numeric'))) {
|
||||
return 'float';
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle SQLServer specific length properties.
|
||||
* SQLServer handles text types as nvarchar/varchar with a length of -1.
|
||||
*
|
||||
* @param mixed $length Either the length as a string, or a Column descriptor object.
|
||||
* @return mixed null|integer with length of column.
|
||||
*/
|
||||
public function length($length) {
|
||||
if (is_object($length) && isset($length->Length)) {
|
||||
if ($length->Length == -1 && strpos($length->Type, 'char') !== false) {
|
||||
return null;
|
||||
}
|
||||
if (in_array($length->Type, array('nchar', 'nvarchar'))) {
|
||||
return floor($length->Length / 2);
|
||||
}
|
||||
return $length->Length;
|
||||
}
|
||||
return parent::length($length);
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds a map of the columns contained in a result
|
||||
*
|
||||
* @param PDOStatement $results
|
||||
* @return void
|
||||
*/
|
||||
public function resultSet($results) {
|
||||
$this->map = array();
|
||||
$numFields = $results->columnCount();
|
||||
$index = 0;
|
||||
|
||||
while ($numFields-- > 0) {
|
||||
$column = $results->getColumnMeta($index);
|
||||
$name = $column['name'];
|
||||
|
||||
if (strpos($name, '__')) {
|
||||
if (isset($this->_fieldMappings[$name]) && strpos($this->_fieldMappings[$name], '.')) {
|
||||
$map = explode('.', $this->_fieldMappings[$name]);
|
||||
} elseif (isset($this->_fieldMappings[$name])) {
|
||||
$map = array(0, $this->_fieldMappings[$name]);
|
||||
} else {
|
||||
$map = array(0, $name);
|
||||
}
|
||||
} else {
|
||||
$map = array(0, $name);
|
||||
}
|
||||
$map[] = ($column['sqlsrv:decl_type'] == 'bit') ? 'boolean' : $column['native_type'];
|
||||
$this->map[$index++] = $map;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds final SQL statement
|
||||
*
|
||||
* @param string $type Query type
|
||||
* @param array $data Query data
|
||||
* @return string
|
||||
*/
|
||||
public function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'select':
|
||||
extract($data);
|
||||
$fields = trim($fields);
|
||||
|
||||
if (strpos($limit, 'TOP') !== false && strpos($fields, 'DISTINCT ') === 0) {
|
||||
$limit = 'DISTINCT ' . trim($limit);
|
||||
$fields = substr($fields, 9);
|
||||
}
|
||||
|
||||
// hack order as SQLServer requires an order if there is a limit.
|
||||
if ($limit && !$order) {
|
||||
$order = 'ORDER BY (SELECT NULL)';
|
||||
}
|
||||
|
||||
// For older versions use the subquery version of pagination.
|
||||
if (version_compare($this->getVersion(), '11', '<') && preg_match('/FETCH\sFIRST\s+([0-9]+)/i', $limit, $offset)) {
|
||||
preg_match('/OFFSET\s*(\d+)\s*.*?(\d+)\s*ROWS/', $limit, $limitOffset);
|
||||
|
||||
$limit = 'TOP ' . intval($limitOffset[2]);
|
||||
$page = intval($limitOffset[1] / $limitOffset[2]);
|
||||
$offset = intval($limitOffset[2] * $page);
|
||||
|
||||
$rowCounter = self::ROW_COUNTER;
|
||||
return "
|
||||
SELECT {$limit} * FROM (
|
||||
SELECT {$fields}, ROW_NUMBER() OVER ({$order}) AS {$rowCounter}
|
||||
FROM {$table} {$alias} {$joins} {$conditions} {$group}
|
||||
) AS _cake_paging_
|
||||
WHERE _cake_paging_.{$rowCounter} > {$offset}
|
||||
ORDER BY _cake_paging_.{$rowCounter}
|
||||
";
|
||||
} elseif (strpos($limit, 'FETCH') !== false) {
|
||||
return "SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}";
|
||||
} else {
|
||||
return "SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order}";
|
||||
}
|
||||
break;
|
||||
case "schema":
|
||||
extract($data);
|
||||
|
||||
foreach ($indexes as $i => $index) {
|
||||
if (preg_match('/PRIMARY KEY/', $index)) {
|
||||
unset($indexes[$i]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
foreach (array('columns', 'indexes') as $var) {
|
||||
if (is_array(${$var})) {
|
||||
${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
|
||||
}
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}";
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
||||
*
|
||||
* @param string $data String to be prepared for use in an SQL statement
|
||||
* @param string $column The column into which this data will be inserted
|
||||
* @return string Quoted and escaped data
|
||||
*/
|
||||
public function value($data, $column = null) {
|
||||
if (is_array($data) || is_object($data)) {
|
||||
return parent::value($data, $column);
|
||||
} elseif (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) {
|
||||
return $data;
|
||||
}
|
||||
|
||||
if (empty($column)) {
|
||||
$column = $this->introspectType($data);
|
||||
}
|
||||
|
||||
switch ($column) {
|
||||
case 'string':
|
||||
case 'text':
|
||||
return 'N' . $this->_connection->quote($data, PDO::PARAM_STR);
|
||||
default:
|
||||
return parent::value($data, $column);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of all result rows for a given SQL query.
|
||||
* Returns false if no rows matched.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $queryData
|
||||
* @param integer $recursive
|
||||
* @return array Array of resultset rows, or false if no rows matched
|
||||
*/
|
||||
public function read(Model $model, $queryData = array(), $recursive = null) {
|
||||
$results = parent::read($model, $queryData, $recursive);
|
||||
$this->_fieldMappings = array();
|
||||
return $results;
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set.
|
||||
* Eats the magic ROW_COUNTER variable.
|
||||
*
|
||||
* @return mixed
|
||||
*/
|
||||
public function fetchResult() {
|
||||
if ($row = $this->_result->fetch(PDO::FETCH_NUM)) {
|
||||
$resultRow = array();
|
||||
foreach ($this->map as $col => $meta) {
|
||||
list($table, $column, $type) = $meta;
|
||||
if ($table === 0 && $column === self::ROW_COUNTER) {
|
||||
continue;
|
||||
}
|
||||
$resultRow[$table][$column] = $row[$col];
|
||||
if ($type === 'boolean' && !is_null($row[$col])) {
|
||||
$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]);
|
||||
}
|
||||
}
|
||||
return $resultRow;
|
||||
}
|
||||
$this->_result->closeCursor();
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Inserts multiple values into a table
|
||||
*
|
||||
* @param string $table
|
||||
* @param string $fields
|
||||
* @param array $values
|
||||
* @return void
|
||||
*/
|
||||
public function insertMulti($table, $fields, $values) {
|
||||
$primaryKey = $this->_getPrimaryKey($table);
|
||||
$hasPrimaryKey = $primaryKey != null && (
|
||||
(is_array($fields) && in_array($primaryKey, $fields)
|
||||
|| (is_string($fields) && strpos($fields, $this->startQuote . $primaryKey . $this->endQuote) !== false))
|
||||
);
|
||||
|
||||
if ($hasPrimaryKey) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' ON');
|
||||
}
|
||||
|
||||
parent::insertMulti($table, $fields, $values);
|
||||
|
||||
if ($hasPrimaryKey) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' OFF');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a database-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the
|
||||
* following: array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
public function buildColumn($column) {
|
||||
$result = parent::buildColumn($column);
|
||||
$result = preg_replace('/(int|integer)\([0-9]+\)/i', '$1', $result);
|
||||
$result = preg_replace('/(bit)\([0-9]+\)/i', '$1', $result);
|
||||
if (strpos($result, 'DEFAULT NULL') !== false) {
|
||||
if (isset($column['default']) && $column['default'] === '') {
|
||||
$result = str_replace('DEFAULT NULL', "DEFAULT ''", $result);
|
||||
} else {
|
||||
$result = str_replace('DEFAULT NULL', 'NULL', $result);
|
||||
}
|
||||
} elseif (array_keys($column) == array('type', 'name')) {
|
||||
$result .= ' NULL';
|
||||
} elseif (strpos($result, "DEFAULT N'")) {
|
||||
$result = str_replace("DEFAULT N'", "DEFAULT '", $result);
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format indexes for create table
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
public function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
|
||||
foreach ($indexes as $name => $value) {
|
||||
if ($name == 'PRIMARY') {
|
||||
$join[] = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
|
||||
} elseif (isset($value['unique']) && $value['unique']) {
|
||||
$out = "ALTER TABLE {$table} ADD CONSTRAINT {$name} UNIQUE";
|
||||
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$out .= "({$value['column']});";
|
||||
$join[] = $out;
|
||||
}
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes sure it will return the primary key
|
||||
*
|
||||
* @param Model|string $model Model instance of table name
|
||||
* @return string
|
||||
*/
|
||||
protected function _getPrimaryKey($model) {
|
||||
$schema = $this->describe($model);
|
||||
foreach ($schema as $field => $props) {
|
||||
if (isset($props['key']) && $props['key'] == 'primary') {
|
||||
return $field;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @param mixed $source
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
public function lastAffected($source = null) {
|
||||
$affected = parent::lastAffected();
|
||||
if ($affected === null && $this->_lastAffected !== false) {
|
||||
return $this->_lastAffected;
|
||||
}
|
||||
return $affected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @param array $params list of params to be bound to query (supported only in select)
|
||||
* @param array $prepareOptions Options to be used in the prepare statement
|
||||
* @return mixed PDOStatement if query executes with no problem, true as the result of a successful, false on error
|
||||
* query returning no rows, such as a CREATE statement, false otherwise
|
||||
* @throws PDOException
|
||||
*/
|
||||
protected function _execute($sql, $params = array(), $prepareOptions = array()) {
|
||||
$this->_lastAffected = false;
|
||||
if (strncasecmp($sql, 'SELECT', 6) == 0 || preg_match('/^EXEC(?:UTE)?\s/mi', $sql) > 0) {
|
||||
$prepareOptions += array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL);
|
||||
return parent::_execute($sql, $params, $prepareOptions);
|
||||
}
|
||||
try {
|
||||
$this->_lastAffected = $this->_connection->exec($sql);
|
||||
if ($this->_lastAffected === false) {
|
||||
$this->_results = null;
|
||||
$error = $this->_connection->errorInfo();
|
||||
$this->error = $error[2];
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
} catch (PDOException $e) {
|
||||
if (isset($query->queryString)) {
|
||||
$e->queryString = $query->queryString;
|
||||
} else {
|
||||
$e->queryString = $sql;
|
||||
}
|
||||
throw $e;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a "drop table" statement for the given Schema object
|
||||
*
|
||||
* @param CakeSchema $schema An instance of a subclass of CakeSchema
|
||||
* @param string $table Optional. If specified only the table name given will be generated.
|
||||
* Otherwise, all tables defined in the schema are generated.
|
||||
* @return string
|
||||
*/
|
||||
public function dropSchema(CakeSchema $schema, $table = null) {
|
||||
$out = '';
|
||||
foreach ($schema->tables as $curTable => $columns) {
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= "IF OBJECT_ID('" . $this->fullTableName($curTable, false) . "', 'U') IS NOT NULL DROP TABLE " . $this->fullTableName($curTable) . ";\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the schema name
|
||||
*
|
||||
* @return string The schema name
|
||||
*/
|
||||
public function getSchemaName() {
|
||||
return $this->config['schema'];
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue