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doctrine2/lib/Doctrine/Hook/Parser/Complex.php

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<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
Doctrine::autoload('Doctrine_Hook_Parser');
/**
* Doctrine_Hook_Parser_Complex
*
* @package Doctrine
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
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abstract class Doctrine_Hook_Parser_Complex extends Doctrine_Hook_Parser
{
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/**
* parse
* Parses given field and field value to DQL condition
* and parameters. This method should always return
* prepared statement conditions (conditions that use
* placeholders instead of literal values).
*
* @param string $alias component alias
* @param string $field the field name
* @param mixed $value the value of the field
* @return void
*/
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public function parse($alias, $field, $value)
{
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$this->condition = $this->parseClause($alias, $field, $value);
}
/**
* parseClause
*
* @param string $alias component alias
* @param string $field the field name
* @param mixed $value the value of the field
* @return void
*/
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public function parseClause($alias, $field, $value)
{
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$parts = Doctrine_Tokenizer::quoteExplode($value, ' AND ');
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if (count($parts) > 1) {
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$ret = array();
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foreach ($parts as $part) {
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$ret[] = $this->parseSingle($alias, $field, $part);
}
$r = implode(' AND ', $ret);
} else {
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$parts = Doctrine_Tokenizer::quoteExplode($value, ' OR ');
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if (count($parts) > 1) {
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$ret = array();
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foreach ($parts as $part) {
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$ret[] = $this->parseClause($alias, $field, $part);
}
$r = implode(' OR ', $ret);
} else {
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$ret = $this->parseSingle($alias, $field, $parts[0]);
return $ret;
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}
}
return '(' . $r . ')';
}
/**
* parseSingle
*
* @param string $alias component alias
* @param string $field the field name
* @param mixed $value the value of the field
* @return void
*/
abstract public function parseSingle($alias, $field, $value);
}