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<?php
/*
* $Id: Set.php 10831 2013-05-29 19:32:17Z btowles $
*
* 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.doctrine-project.org>.
*/
/**
* Doctrine_Query
*
* @package Doctrine
* @subpackage Query
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 1.0
* @version $Revision: 7490 $
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
class Doctrine_Query_Set extends Doctrine_Query_Part
{
public function parse($dql)
{
$terms = $this->_tokenizer->sqlExplode($dql, ' ');
$termsTranslation = array();
foreach ($terms as $term) {
$termOriginal = $term;
// We need to check for agg functions here
$matches = array();
$hasAggExpression = $this->_processPossibleAggExpression($term, $matches);
$lftExpr = (($hasAggExpression) ? $matches[1] . '(' : '');
$rgtExpr = (($hasAggExpression) ? $matches[3] . ')' : '');
preg_match_all("/^([a-zA-Z0-9_]+[\.[a-zA-Z0-9_]+]*)(\sAS\s[a-zA-Z0-9_]+)?/i", $term, $m, PREG_SET_ORDER);
if (isset($m[0])) {
$processed = array();
foreach ($m as $piece) {
$part = $piece[1];
$e = explode('.', trim($part));
$fieldName = array_pop($e);
$reference = (count($e) > 0) ? implode('.', $e) : $this->query->getRootAlias();
$aliasMap = $this->query->getQueryComponent($reference);
if ($aliasMap['table']->hasField($fieldName)) {
$columnName = $aliasMap['table']->getColumnName($fieldName);
$columnName = $aliasMap['table']->getConnection()->quoteIdentifier($columnName);
$part = $columnName;
}
$processed[] = $part . (isset($piece[2]) ? $piece[2] : '');
}
$termsTranslation[$termOriginal] = $lftExpr . implode(' ', $processed) . $rgtExpr;
}
}
return strtr($dql, $termsTranslation);
}
protected function _processPossibleAggExpression(& $expr, & $matches = array())
{
$hasAggExpr = preg_match('/(.*[^\s\(\=])\(([^\)]*)\)(.*)/', $expr, $matches);
if ($hasAggExpr) {
$expr = $matches[2];
// We need to process possible comma separated items
if (substr(trim($matches[3]), 0, 1) == ',') {
$xplod = $this->_tokenizer->sqlExplode(trim($matches[3], ' )'), ',');
$matches[3] = array();
foreach ($xplod as $part) {
if ($part != '') {
$matches[3][] = $this->parseLiteralValue($part);
}
}
$matches[3] = '), ' . implode(', ', $matches[3]);
}
}
return $hasAggExpr;
}
}