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doctrine2/lib/Doctrine/Query/Condition.php

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<?php
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/*
* $Id$
*
* 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_Query_Part');
/**
* Doctrine_Query_Condition
*
* @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_Query_Condition extends Doctrine_Query_Part
{
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/**
* DQL CONDITION PARSER
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* parses the join condition/where/having part of the query string
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*
* @param string $str
* @return string
*/
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final public function parse($str)
{
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$tmp = trim($str);
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$parts = Doctrine_Query::bracketExplode($str, array(' \&\& ', ' AND '), '(', ')');
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if (count($parts) > 1) {
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$ret = array();
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foreach ($parts as $part) {
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$part = Doctrine_Query::bracketTrim($part, '(', ')');
$ret[] = $this->parse($part);
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}
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$r = implode(' AND ',$ret);
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} else {
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$parts = Doctrine_Query::bracketExplode($str, array(' \|\| ', ' OR '), '(', ')');
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if (count($parts) > 1) {
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$ret = array();
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foreach ($parts as $part) {
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$part = Doctrine_Query::bracketTrim($part, '(', ')');
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$ret[] = $this->parse($part);
}
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$r = implode(' OR ', $ret);
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} else {
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if (substr($parts[0],0,1) == '(' && substr($parts[0],-1) == ')') {
return $this->parse(substr($parts[0],1,-1));
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} else {
return $this->load($parts[0]);
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}
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}
}
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return '(' . $r . ')';
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}
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/**
* parses a literal value and returns the parsed value
*
* boolean literals are parsed to integers
* components are parsed to associated table aliases
*
* @param string $value literal value to be parsed
* @return string
*/
public function parseLiteralValue($value)
{
// check that value isn't a string
if (strpos($value, '\'') === false) {
// parse booleans
if ($value == 'true')
$value = 1;
elseif ($value == 'false')
$value = 0;
$a = explode('.', $value);
if (count($a) > 1) {
// either a float or a component..
if ( ! is_numeric($a[0])) {
// a component found
$value = $this->query->getTableAlias($a[0]). '.' . $a[1];
}
}
} else {
// string literal found
}
return $value;
}
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}