silverstripe-framework/ORM/Queries/SQLDelete.php

89 lines
2.5 KiB
PHP
Raw Normal View History

<?php
namespace SilverStripe\ORM\Queries;
use Injector;
/**
* Object representing a SQL DELETE query.
* The various parts of the SQL query can be manipulated individually.
*
* @package framework
* @subpackage orm
*/
class SQLDelete extends SQLConditionalExpression {
/**
* List of tables to limit the delete to, if multiple tables
* are specified in the condition clause
*
* @see http://dev.mysql.com/doc/refman/5.0/en/delete.html
*
* @var array
*/
protected $delete = array();
/**
* Construct a new SQLDelete.
*
* @param array|string $from An array of Tables (FROM clauses). The first one should be just the table name.
* Each should be ANSI quoted.
* @param array $where An array of WHERE clauses.
* @param array|string $delete The table(s) to delete, if multiple tables are queried from
* @return self Self reference
*/
public static function create($from = array(), $where = array(), $delete = array()) {
return Injector::inst()->createWithArgs(__CLASS__, func_get_args());
}
/**
* Construct a new SQLDelete.
*
* @param array|string $from An array of Tables (FROM clauses). The first one should be just the table name.
* Each should be ANSI quoted.
* @param array $where An array of WHERE clauses.
* @param array|string $delete The table(s) to delete, if multiple tables are queried from
*/
function __construct($from = array(), $where = array(), $delete = array()) {
parent::__construct($from, $where);
$this->setDelete($delete);
}
/**
* List of tables to limit the delete to, if multiple tables
* are specified in the condition clause
*
* @return array
*/
public function getDelete() {
return $this->delete;
}
/**
* Sets the list of tables to limit the delete to, if multiple tables
* are specified in the condition clause
*
* @param string|array $tables Escaped SQL statement, usually an unquoted table name
* @return self Self reference
*/
public function setDelete($tables) {
$this->delete = array();
return $this->addDelete($tables);
}
/**
* Sets the list of tables to limit the delete to, if multiple tables
* are specified in the condition clause
*
* @param string|array $tables Escaped SQL statement, usually an unquoted table name
* @return self Self reference
*/
public function addDelete($tables) {
if(is_array($tables)) {
$this->delete = array_merge($this->delete, $tables);
} elseif(!empty($tables)) {
$this->delete[str_replace(array('"','`'), '', $tables)] = $tables;
}
}
}