40 lines
1.3 KiB
PHP
40 lines
1.3 KiB
PHP
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<?php
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/**
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* CSqliteCommandBuilder class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright Copyright © 2008-2011 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CSqliteCommandBuilder provides basic methods to create query commands for SQLite tables.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.db.schema.sqlite
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* @since 1.0
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*/
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class CSqliteCommandBuilder extends CDbCommandBuilder
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{
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/**
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* Generates the expression for selecting rows with specified composite key values.
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* This method is overridden because SQLite does not support the default
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* IN expression with composite columns.
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* @param CDbTableSchema $table the table schema
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* @param array $values list of primary key values to be selected within
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* @param string $prefix column prefix (ended with dot)
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* @return string the expression for selection
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*/
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protected function createCompositeInCondition($table,$values,$prefix)
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{
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$keyNames=array();
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foreach(array_keys($values[0]) as $name)
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$keyNames[]=$prefix.$table->columns[$name]->rawName;
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$vs=array();
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foreach($values as $value)
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$vs[]=implode("||','||",$value);
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return implode("||','||",$keyNames).' IN ('.implode(', ',$vs).')';
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}
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}
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