pictcode / lib / Cake / Model / Datasource / Database / Sqlserver.php @ 0b1b8047
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<?php
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/**
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* MS SQL Server layer for DBO
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) 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 http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('DboSource', 'Model/Datasource'); |
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/**
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* Dbo layer for Microsoft's official SQLServer driver
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*
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* A Dbo layer for MS SQL Server 2005 and higher. Requires the
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* `pdo_sqlsrv` extension to be enabled.
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*
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* @link http://www.php.net/manual/en/ref.pdo-sqlsrv.php
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*
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* @package Cake.Model.Datasource.Database
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*/
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class Sqlserver extends DboSource { |
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/**
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* Driver description
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*
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* @var string
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*/
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public $description = "SQL Server DBO Driver"; |
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/**
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* Starting quote character for quoted identifiers
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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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/**
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* Ending quote character for quoted identifiers
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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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/**
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* Creates a map between field aliases and numeric indexes. Workaround for the
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* SQL Server driver's 30-character column name limitation.
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*
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* @var array
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*/
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protected $_fieldMappings = array(); |
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|
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/**
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* Storing the last affected value
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*
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* @var mixed
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*/
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protected $_lastAffected = false; |
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|
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/**
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* Base configuration settings for MS SQL 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\SQLEXPRESS', |
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'login' => '', |
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'password' => '', |
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'database' => 'cake', |
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'schema' => '', |
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'flags' => array() |
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); |
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|
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/**
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* MS SQL 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' => 'IDENTITY (1, 1) NOT NULL'), |
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'string' => array('name' => 'nvarchar', 'limit' => '255'), |
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'text' => array('name' => 'nvarchar', 'limit' => 'MAX'), |
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'integer' => array('name' => 'int', 'formatter' => 'intval'), |
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'biginteger' => array('name' => 'bigint'), |
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'numeric' => array('name' => 'decimal', 'formatter' => 'floatval'), |
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'decimal' => array('name' => 'decimal', 'formatter' => 'floatval'), |
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'float' => array('name' => 'float', 'formatter' => 'floatval'), |
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'real' => 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' => 'datetime', 'format' => 'H:i:s', 'formatter' => 'date'), |
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'date' => array('name' => 'datetime', 'format' => 'Y-m-d', 'formatter' => 'date'), |
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'binary' => array('name' => 'varbinary'), |
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'boolean' => array('name' => 'bit') |
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); |
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/**
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* Magic column name used to provide pagination support for SQLServer 2008
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* which lacks proper limit/offset support.
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*
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* @var string
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*/
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const ROW_COUNTER = '_cake_page_rownum_'; |
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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 bool 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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$flags = $config['flags'] + array( |
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PDO::ATTR_PERSISTENT => $config['persistent'], |
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION |
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); |
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if (!empty($config['encoding'])) { |
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$flags[PDO::SQLSRV_ATTR_ENCODING] = $config['encoding']; |
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} |
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try {
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$this->_connection = new PDO( |
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"sqlsrv:server={$config['host']};Database={$config['database']}",
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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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if (!empty($config['settings'])) { |
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foreach ($config['settings'] as $key => $value) { |
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$this->_execute("SET $key $value"); |
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} |
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} |
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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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return $this->connected; |
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} |
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/**
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* Check that PDO SQL Server is installed/loaded
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*
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* @return bool
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*/
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public function enabled() { |
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return in_array('sqlsrv', 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 $data The names
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* @return array Array of table names in the database
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*/
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public function listSources($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 = $this->_execute("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES"); |
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if (!$result) { |
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$result->closeCursor();
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return array(); |
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} |
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$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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* Returns an array of the fields in given table name.
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*
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* @param Model|string $model Model object to describe, or a string table name.
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* @return array Fields in table. Keys are name and type
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* @throws CakeException
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*/
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public function describe($model) { |
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$table = $this->fullTableName($model, false, false); |
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$fulltable = $this->fullTableName($model, false, true); |
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$cache = parent::describe($fulltable); |
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if ($cache) { |
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return $cache; |
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} |
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$fields = array(); |
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$schema = is_object($model) ? $model->schemaName : false; |
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$cols = $this->_execute( |
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"SELECT
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COLUMN_NAME as Field,
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DATA_TYPE as Type,
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COL_LENGTH('" . ($schema ? $fulltable : $table) . "', COLUMN_NAME) as Length, |
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IS_NULLABLE As [Null],
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COLUMN_DEFAULT as [Default],
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COLUMNPROPERTY(OBJECT_ID('" . ($schema ? $fulltable : $table) . "'), COLUMN_NAME, 'IsIdentity') as [Key], |
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NUMERIC_SCALE as Size
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_NAME = '" . $table . "'" . ($schema ? " AND TABLE_SCHEMA = '" . $schema . "'" : '') |
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); |
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if (!$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 = $cols->fetch(PDO::FETCH_OBJ)) { |
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$field = $column->Field; |
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$fields[$field] = array( |
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'type' => $this->column($column), |
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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), |
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'key' => ($column->Key == '1') ? 'primary' : false |
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); |
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if ($fields[$field]['default'] === 'null') { |
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$fields[$field]['default'] = null; |
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} |
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if ($fields[$field]['default'] !== null) { |
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$fields[$field]['default'] = preg_replace( |
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"/^[(]{1,2}'?([^')]*)?'?[)]{1,2}$/",
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"$1",
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$fields[$field]['default'] |
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); |
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$this->value($fields[$field]['default'], $fields[$field]['type']); |
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} |
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if ($fields[$field]['key'] !== false && $fields[$field]['type'] === 'integer') { |
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$fields[$field]['length'] = 11; |
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} elseif ($fields[$field]['key'] === false) { |
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unset($fields[$field]['key']); |
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} |
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if (in_array($fields[$field]['type'], array('date', 'time', 'datetime', 'timestamp'))) { |
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$fields[$field]['length'] = null; |
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} |
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if ($fields[$field]['type'] === 'float' && !empty($column->Size)) { |
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$fields[$field]['length'] = $fields[$field]['length'] . ',' . $column->Size; |
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} |
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} |
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$this->_cacheDescription($table, $fields); |
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$cols->closeCursor();
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return $fields; |
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} |
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/**
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* Generates the fields list of an SQL query.
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*
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* @param Model $model The model to get fields for.
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* @param string $alias Alias table name
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* @param array $fields The fields so far.
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* @param bool $quote Whether or not to quote identfiers.
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* @return array
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*/
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public function fields(Model $model, $alias = null, $fields = array(), $quote = true) { |
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if (empty($alias)) { |
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$alias = $model->alias; |
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} |
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$fields = parent::fields($model, $alias, $fields, false); |
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$count = count($fields); |
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if ($count >= 1 && strpos($fields[0], 'COUNT(*)') === false) { |
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$result = array(); |
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for ($i = 0; $i < $count; $i++) { |
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$prepend = ''; |
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if (strpos($fields[$i], 'DISTINCT') !== false && strpos($fields[$i], 'COUNT') === false) { |
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$prepend = 'DISTINCT '; |
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$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i])); |
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} |
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if (!preg_match('/\s+AS\s+/i', $fields[$i])) { |
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if (substr($fields[$i], -1) === '*') { |
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if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') { |
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$build = explode('.', $fields[$i]); |
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$AssociatedModel = $model->{$build[0]}; |
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} else {
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$AssociatedModel = $model; |
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} |
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$_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema())); |
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$result = array_merge($result, $_fields); |
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continue;
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} |
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if (strpos($fields[$i], '.') === false) { |
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$this->_fieldMappings[$alias . '__' . $fields[$i]] = $alias . '.' . $fields[$i]; |
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$fieldName = $this->name($alias . '.' . $fields[$i]); |
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$fieldAlias = $this->name($alias . '__' . $fields[$i]); |
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} else {
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$build = explode('.', $fields[$i]); |
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$build[0] = trim($build[0], '[]'); |
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$build[1] = trim($build[1], '[]'); |
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$name = $build[0] . '.' . $build[1]; |
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$alias = $build[0] . '__' . $build[1]; |
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$this->_fieldMappings[$alias] = $name; |
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$fieldName = $this->name($name); |
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$fieldAlias = $this->name($alias); |
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} |
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if ($model->getColumnType($fields[$i]) === 'datetime') { |
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$fieldName = "CONVERT(VARCHAR(20), {$fieldName}, 20)"; |
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} |
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$fields[$i] = "{$fieldName} AS {$fieldAlias}"; |
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} |
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$result[] = $prepend . $fields[$i]; |
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} |
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return $result; |
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} |
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return $fields; |
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} |
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|
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/**
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* Generates and executes an SQL INSERT statement for given model, fields, and values.
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* Removes Identity (primary key) column from update data before returning to parent, if
|
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* value is empty.
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*
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* @param Model $model The model to insert into.
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* @param array $fields The fields to set.
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* @param array $values The values to set.
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* @return array
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*/
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public function create(Model $model, $fields = null, $values = null) { |
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if (!empty($values)) { |
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$fields = array_combine($fields, $values); |
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} |
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$primaryKey = $this->_getPrimaryKey($model); |
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|
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if (array_key_exists($primaryKey, $fields)) { |
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if (empty($fields[$primaryKey])) { |
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unset($fields[$primaryKey]); |
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} else {
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$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' ON'); |
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} |
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} |
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$result = parent::create($model, array_keys($fields), array_values($fields)); |
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if (array_key_exists($primaryKey, $fields) && !empty($fields[$primaryKey])) { |
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$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' OFF'); |
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} |
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return $result; |
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} |
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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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* Removes Identity (primary key) column from update data before returning to parent.
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*
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* @param Model $model The model to update.
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* @param array $fields The fields to set.
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* @param array $values The values to set.
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* @param mixed $conditions The conditions to use.
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* @return array
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*/
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public function update(Model $model, $fields = array(), $values = null, $conditions = null) { |
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if (!empty($values)) { |
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$fields = array_combine($fields, $values); |
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} |
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if (isset($fields[$model->primaryKey])) { |
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unset($fields[$model->primaryKey]); |
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} |
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if (empty($fields)) { |
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return true; |
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} |
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return parent::update($model, array_keys($fields), array_values($fields), $conditions); |
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} |
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|
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/**
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* Returns a limit statement in the correct format for the particular database.
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*
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* @param int $limit Limit of results returned
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* @param int $offset Offset from which to start results
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* @return string SQL limit/offset statement
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*/
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public function limit($limit, $offset = null) { |
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if ($limit) { |
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$rt = ''; |
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if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) { |
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$rt = ' TOP'; |
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} |
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$rt .= sprintf(' %u', $limit); |
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if (is_int($offset) && $offset > 0) { |
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$rt = sprintf(' OFFSET %u ROWS FETCH FIRST %u ROWS ONLY', $offset, $limit); |
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} |
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return $rt; |
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} |
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return null; |
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} |
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|
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/**
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* Converts database-layer column types to basic types
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*
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* @param mixed $real Either the string value of the fields type.
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* or the Result object from Sqlserver::describe()
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* @return string Abstract column type (i.e. "string")
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*/
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public function column($real) { |
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$limit = null; |
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$col = $real; |
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if (is_object($real) && isset($real->Field)) { |
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$limit = $real->Length; |
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$col = $real->Type; |
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} |
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|
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if ($col === 'datetime2') { |
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return 'datetime'; |
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} |
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if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) { |
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return $col; |
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} |
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if ($col === 'bit') { |
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return 'boolean'; |
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} |
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if (strpos($col, 'bigint') !== false) { |
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return 'biginteger'; |
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} |
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if (strpos($col, 'int') !== false) { |
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return 'integer'; |
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} |
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if (strpos($col, 'char') !== false && $limit == -1) { |
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return 'text'; |
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} |
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if (strpos($col, 'char') !== false) { |
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return 'string'; |
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} |
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if (strpos($col, 'text') !== false) { |
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return 'text'; |
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} |
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if (strpos($col, 'binary') !== false || $col === 'image') { |
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return 'binary'; |
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} |
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if (in_array($col, array('float', 'real'))) { |
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return 'float'; |
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} |
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if (in_array($col, array('decimal', 'numeric'))) { |
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return 'decimal'; |
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} |
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return 'text'; |
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} |
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|
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/**
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* Handle SQLServer specific length properties.
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* SQLServer handles text types as nvarchar/varchar with a length of -1.
|
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*
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* @param mixed $length Either the length as a string, or a Column descriptor object.
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* @return mixed null|integer with length of column.
|
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*/
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public function length($length) { |
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if (is_object($length) && isset($length->Length)) { |
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if ($length->Length == -1 && strpos($length->Type, 'char') !== false) { |
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return null; |
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} |
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if (in_array($length->Type, array('nchar', 'nvarchar'))) { |
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return floor($length->Length / 2); |
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} |
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if ($length->Type === 'text') { |
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return null; |
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} |
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return $length->Length; |
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} |
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return parent::length($length); |
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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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| 488 |
* @param PDOStatement $results The result to modify.
|
| 489 |
* @return void
|
| 490 |
*/
|
| 491 |
public function resultSet($results) { |
| 492 |
$this->map = array(); |
| 493 |
$numFields = $results->columnCount(); |
| 494 |
$index = 0; |
| 495 |
|
| 496 |
while ($numFields-- > 0) { |
| 497 |
$column = $results->getColumnMeta($index); |
| 498 |
$name = $column['name']; |
| 499 |
|
| 500 |
if (strpos($name, '__')) { |
| 501 |
if (isset($this->_fieldMappings[$name]) && strpos($this->_fieldMappings[$name], '.')) { |
| 502 |
$map = explode('.', $this->_fieldMappings[$name]); |
| 503 |
} elseif (isset($this->_fieldMappings[$name])) { |
| 504 |
$map = array(0, $this->_fieldMappings[$name]); |
| 505 |
} else {
|
| 506 |
$map = array(0, $name); |
| 507 |
} |
| 508 |
} else {
|
| 509 |
$map = array(0, $name); |
| 510 |
} |
| 511 |
$map[] = ($column['sqlsrv:decl_type'] === 'bit') ? 'boolean' : $column['native_type']; |
| 512 |
$this->map[$index++] = $map; |
| 513 |
} |
| 514 |
} |
| 515 |
|
| 516 |
/**
|
| 517 |
* Builds final SQL statement
|
| 518 |
*
|
| 519 |
* @param string $type Query type
|
| 520 |
* @param array $data Query data
|
| 521 |
* @return string
|
| 522 |
*/
|
| 523 |
public function renderStatement($type, $data) { |
| 524 |
switch (strtolower($type)) { |
| 525 |
case 'select': |
| 526 |
extract($data); |
| 527 |
$fields = trim($fields); |
| 528 |
|
| 529 |
if (strpos($limit, 'TOP') !== false && strpos($fields, 'DISTINCT ') === 0) { |
| 530 |
$limit = 'DISTINCT ' . trim($limit); |
| 531 |
$fields = substr($fields, 9); |
| 532 |
} |
| 533 |
|
| 534 |
// hack order as SQLServer requires an order if there is a limit.
|
| 535 |
if ($limit && !$order) { |
| 536 |
$order = 'ORDER BY (SELECT NULL)'; |
| 537 |
} |
| 538 |
|
| 539 |
// For older versions use the subquery version of pagination.
|
| 540 |
if (version_compare($this->getVersion(), '11', '<') && preg_match('/FETCH\sFIRST\s+([0-9]+)/i', $limit, $offset)) { |
| 541 |
preg_match('/OFFSET\s*(\d+)\s*.*?(\d+)\s*ROWS/', $limit, $limitOffset); |
| 542 |
|
| 543 |
$limit = 'TOP ' . (int)$limitOffset[2]; |
| 544 |
$page = (int)($limitOffset[1] / $limitOffset[2]); |
| 545 |
$offset = (int)($limitOffset[2] * $page); |
| 546 |
|
| 547 |
$rowCounter = static::ROW_COUNTER; |
| 548 |
$sql = "SELECT {$limit} * FROM ( |
| 549 |
SELECT {$fields}, ROW_NUMBER() OVER ({$order}) AS {$rowCounter}
|
| 550 |
FROM {$table} {$alias} {$joins} {$conditions} {$group}
|
| 551 |
) AS _cake_paging_
|
| 552 |
WHERE _cake_paging_.{$rowCounter} > {$offset}
|
| 553 |
ORDER BY _cake_paging_.{$rowCounter}
|
| 554 |
";
|
| 555 |
return trim($sql); |
| 556 |
} |
| 557 |
if (strpos($limit, 'FETCH') !== false) { |
| 558 |
return trim("SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}"); |
| 559 |
} |
| 560 |
return trim("SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order}"); |
| 561 |
case "schema": |
| 562 |
extract($data); |
| 563 |
|
| 564 |
foreach ($indexes as $i => $index) { |
| 565 |
if (preg_match('/PRIMARY KEY/', $index)) { |
| 566 |
unset($indexes[$i]); |
| 567 |
break;
|
| 568 |
} |
| 569 |
} |
| 570 |
|
| 571 |
foreach (array('columns', 'indexes') as $var) { |
| 572 |
if (is_array(${$var})) { |
| 573 |
${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
|
| 574 |
} |
| 575 |
} |
| 576 |
return trim("CREATE TABLE {$table} (\n{$columns});\n{$indexes}"); |
| 577 |
default:
|
| 578 |
return parent::renderStatement($type, $data); |
| 579 |
} |
| 580 |
} |
| 581 |
|
| 582 |
/**
|
| 583 |
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
| 584 |
*
|
| 585 |
* @param string $data String to be prepared for use in an SQL statement
|
| 586 |
* @param string $column The column into which this data will be inserted
|
| 587 |
* @param bool $null Column allows NULL values
|
| 588 |
* @return string Quoted and escaped data
|
| 589 |
*/
|
| 590 |
public function value($data, $column = null, $null = true) { |
| 591 |
if ($data === null || is_array($data) || is_object($data)) { |
| 592 |
return parent::value($data, $column, $null); |
| 593 |
} |
| 594 |
if (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) { |
| 595 |
return $data; |
| 596 |
} |
| 597 |
|
| 598 |
if (empty($column)) { |
| 599 |
$column = $this->introspectType($data); |
| 600 |
} |
| 601 |
|
| 602 |
switch ($column) { |
| 603 |
case 'string': |
| 604 |
case 'text': |
| 605 |
return 'N' . $this->_connection->quote($data, PDO::PARAM_STR); |
| 606 |
default:
|
| 607 |
return parent::value($data, $column, $null); |
| 608 |
} |
| 609 |
} |
| 610 |
|
| 611 |
/**
|
| 612 |
* Returns an array of all result rows for a given SQL query.
|
| 613 |
* Returns false if no rows matched.
|
| 614 |
*
|
| 615 |
* @param Model $model The model to read from
|
| 616 |
* @param array $queryData The query data
|
| 617 |
* @param int $recursive How many layers to go.
|
| 618 |
* @return array|false Array of resultset rows, or false if no rows matched
|
| 619 |
*/
|
| 620 |
public function read(Model $model, $queryData = array(), $recursive = null) { |
| 621 |
$results = parent::read($model, $queryData, $recursive); |
| 622 |
$this->_fieldMappings = array(); |
| 623 |
return $results; |
| 624 |
} |
| 625 |
|
| 626 |
/**
|
| 627 |
* Fetches the next row from the current result set.
|
| 628 |
* Eats the magic ROW_COUNTER variable.
|
| 629 |
*
|
| 630 |
* @return mixed
|
| 631 |
*/
|
| 632 |
public function fetchResult() { |
| 633 |
if ($row = $this->_result->fetch(PDO::FETCH_NUM)) { |
| 634 |
$resultRow = array(); |
| 635 |
foreach ($this->map as $col => $meta) { |
| 636 |
list($table, $column, $type) = $meta; |
| 637 |
if ($table === 0 && $column === static::ROW_COUNTER) { |
| 638 |
continue;
|
| 639 |
} |
| 640 |
$resultRow[$table][$column] = $row[$col]; |
| 641 |
if ($type === 'boolean' && $row[$col] !== null) { |
| 642 |
$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]); |
| 643 |
} |
| 644 |
} |
| 645 |
return $resultRow; |
| 646 |
} |
| 647 |
$this->_result->closeCursor();
|
| 648 |
return false; |
| 649 |
} |
| 650 |
|
| 651 |
/**
|
| 652 |
* Inserts multiple values into a table
|
| 653 |
*
|
| 654 |
* @param string $table The table to insert into.
|
| 655 |
* @param string $fields The fields to set.
|
| 656 |
* @param array $values The values to set.
|
| 657 |
* @return void
|
| 658 |
*/
|
| 659 |
public function insertMulti($table, $fields, $values) { |
| 660 |
$primaryKey = $this->_getPrimaryKey($table); |
| 661 |
$hasPrimaryKey = $primaryKey && ( |
| 662 |
(is_array($fields) && in_array($primaryKey, $fields) |
| 663 |
|| (is_string($fields) && strpos($fields, $this->startQuote . $primaryKey . $this->endQuote) !== false)) |
| 664 |
); |
| 665 |
|
| 666 |
if ($hasPrimaryKey) { |
| 667 |
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' ON'); |
| 668 |
} |
| 669 |
|
| 670 |
parent::insertMulti($table, $fields, $values); |
| 671 |
|
| 672 |
if ($hasPrimaryKey) { |
| 673 |
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' OFF'); |
| 674 |
} |
| 675 |
} |
| 676 |
|
| 677 |
/**
|
| 678 |
* Generate a database-native column schema string
|
| 679 |
*
|
| 680 |
* @param array $column An array structured like the
|
| 681 |
* following: array('name'=>'value', 'type'=>'value'[, options]),
|
| 682 |
* where options can be 'default', 'length', or 'key'.
|
| 683 |
* @return string
|
| 684 |
*/
|
| 685 |
public function buildColumn($column) { |
| 686 |
$result = parent::buildColumn($column); |
| 687 |
$result = preg_replace('/(bigint|int|integer)\([0-9]+\)/i', '$1', $result); |
| 688 |
$result = preg_replace('/(bit)\([0-9]+\)/i', '$1', $result); |
| 689 |
if (strpos($result, 'DEFAULT NULL') !== false) { |
| 690 |
if (isset($column['default']) && $column['default'] === '') { |
| 691 |
$result = str_replace('DEFAULT NULL', "DEFAULT ''", $result); |
| 692 |
} else {
|
| 693 |
$result = str_replace('DEFAULT NULL', 'NULL', $result); |
| 694 |
} |
| 695 |
} elseif (array_keys($column) === array('type', 'name')) { |
| 696 |
$result .= ' NULL'; |
| 697 |
} elseif (strpos($result, "DEFAULT N'")) { |
| 698 |
$result = str_replace("DEFAULT N'", "DEFAULT '", $result); |
| 699 |
} |
| 700 |
return $result; |
| 701 |
} |
| 702 |
|
| 703 |
/**
|
| 704 |
* Format indexes for create table
|
| 705 |
*
|
| 706 |
* @param array $indexes The indexes to build
|
| 707 |
* @param string $table The table to make indexes for.
|
| 708 |
* @return string
|
| 709 |
*/
|
| 710 |
public function buildIndex($indexes, $table = null) { |
| 711 |
$join = array(); |
| 712 |
|
| 713 |
foreach ($indexes as $name => $value) { |
| 714 |
if ($name === 'PRIMARY') { |
| 715 |
$join[] = 'PRIMARY KEY (' . $this->name($value['column']) . ')'; |
| 716 |
} elseif (isset($value['unique']) && $value['unique']) { |
| 717 |
$out = "ALTER TABLE {$table} ADD CONSTRAINT {$name} UNIQUE"; |
| 718 |
|
| 719 |
if (is_array($value['column'])) { |
| 720 |
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column'])); |
| 721 |
} else {
|
| 722 |
$value['column'] = $this->name($value['column']); |
| 723 |
} |
| 724 |
$out .= "({$value['column']});"; |
| 725 |
$join[] = $out; |
| 726 |
} |
| 727 |
} |
| 728 |
return $join; |
| 729 |
} |
| 730 |
|
| 731 |
/**
|
| 732 |
* Makes sure it will return the primary key
|
| 733 |
*
|
| 734 |
* @param Model|string $model Model instance of table name
|
| 735 |
* @return string
|
| 736 |
*/
|
| 737 |
protected function _getPrimaryKey($model) { |
| 738 |
$schema = $this->describe($model); |
| 739 |
foreach ($schema as $field => $props) { |
| 740 |
if (isset($props['key']) && $props['key'] === 'primary') { |
| 741 |
return $field; |
| 742 |
} |
| 743 |
} |
| 744 |
return null; |
| 745 |
} |
| 746 |
|
| 747 |
/**
|
| 748 |
* Returns number of affected rows in previous database operation. If no previous operation exists,
|
| 749 |
* this returns false.
|
| 750 |
*
|
| 751 |
* @param mixed $source Unused
|
| 752 |
* @return int Number of affected rows
|
| 753 |
*/
|
| 754 |
public function lastAffected($source = null) { |
| 755 |
$affected = parent::lastAffected(); |
| 756 |
if ($affected === null && $this->_lastAffected !== false) { |
| 757 |
return $this->_lastAffected; |
| 758 |
} |
| 759 |
return $affected; |
| 760 |
} |
| 761 |
|
| 762 |
/**
|
| 763 |
* Executes given SQL statement.
|
| 764 |
*
|
| 765 |
* @param string $sql SQL statement
|
| 766 |
* @param array $params list of params to be bound to query (supported only in select)
|
| 767 |
* @param array $prepareOptions Options to be used in the prepare statement
|
| 768 |
* @return mixed PDOStatement if query executes with no problem, true as the result of a successful, false on error
|
| 769 |
* query returning no rows, such as a CREATE statement, false otherwise
|
| 770 |
* @throws PDOException
|
| 771 |
*/
|
| 772 |
protected function _execute($sql, $params = array(), $prepareOptions = array()) { |
| 773 |
$this->_lastAffected = false; |
| 774 |
$sql = trim($sql); |
| 775 |
if (strncasecmp($sql, 'SELECT', 6) === 0 || preg_match('/^EXEC(?:UTE)?\s/mi', $sql) > 0) { |
| 776 |
$prepareOptions += array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL); |
| 777 |
return parent::_execute($sql, $params, $prepareOptions); |
| 778 |
} |
| 779 |
try {
|
| 780 |
$this->_lastAffected = $this->_connection->exec($sql); |
| 781 |
if ($this->_lastAffected === false) { |
| 782 |
$this->_results = null; |
| 783 |
$error = $this->_connection->errorInfo(); |
| 784 |
$this->error = $error[2]; |
| 785 |
return false; |
| 786 |
} |
| 787 |
return true; |
| 788 |
} catch (PDOException $e) { |
| 789 |
if (isset($query->queryString)) { |
| 790 |
$e->queryString = $query->queryString; |
| 791 |
} else {
|
| 792 |
$e->queryString = $sql; |
| 793 |
} |
| 794 |
throw $e; |
| 795 |
} |
| 796 |
} |
| 797 |
|
| 798 |
/**
|
| 799 |
* Generate a "drop table" statement for the given table
|
| 800 |
*
|
| 801 |
* @param type $table Name of the table to drop
|
| 802 |
* @return string Drop table SQL statement
|
| 803 |
*/
|
| 804 |
protected function _dropTable($table) { |
| 805 |
return "IF OBJECT_ID('" . $this->fullTableName($table, false) . "', 'U') IS NOT NULL DROP TABLE " . $this->fullTableName($table) . ";"; |
| 806 |
} |
| 807 |
|
| 808 |
/**
|
| 809 |
* Gets the schema name
|
| 810 |
*
|
| 811 |
* @return string The schema name
|
| 812 |
*/
|
| 813 |
public function getSchemaName() { |
| 814 |
return $this->config['schema']; |
| 815 |
} |
| 816 |
|
| 817 |
} |