116 lines
3.6 KiB
PHP
116 lines
3.6 KiB
PHP
<?php
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/*
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* $Id: Having.php 5798 2009-06-02 15:10:46Z piccoloprincipe $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.org>.
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*/
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/**
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* Doctrine_Query_Having
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*
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* @package Doctrine
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* @subpackage Query
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.phpdoctrine.org
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* @since 1.0
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* @version $Revision: 5798 $
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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*/
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class Doctrine_Query_Having extends Doctrine_Query_Condition
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{
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/**
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* DQL Aggregate Function parser
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*
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* @param string $func
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* @return mixed
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*/
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private function parseAggregateFunction($func)
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{
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$pos = strpos($func, '(');
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if ($pos !== false) {
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$funcs = array();
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$name = substr($func, 0, $pos);
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$func = substr($func, ($pos + 1), -1);
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$params = $this->_tokenizer->bracketExplode($func, ',', '(', ')');
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foreach ($params as $k => $param) {
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$params[$k] = $this->parseAggregateFunction($param);
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}
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$funcs = $name . '(' . implode(', ', $params) . ')';
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return $funcs;
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} else {
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return $this->_parseAliases($func);
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}
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}
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/**
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* _parseAliases
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* Processes part of the query not being an aggregate function
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*
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* @param mixed $value
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* @return string
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*/
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final private function _parseAliases($value)
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{
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if ( ! is_numeric($value)) {
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$a = explode('.', $value);
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if (count($a) > 1) {
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$field = array_pop($a);
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$ref = implode('.', $a);
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$map = $this->query->load($ref, false);
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$field = $map['table']->getColumnName($field);
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$value = $this->query->getConnection()->quoteIdentifier($this->query->getTableAlias($ref) . '.' . $field);
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} else {
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$field = end($a);
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$value = $this->query->getAggregateAlias($field);
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}
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}
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return $value;
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}
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/**
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* load
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* returns the parsed query part
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*
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* @param string $having
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* @return string
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*/
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final public function load($having)
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{
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$tokens = $this->_tokenizer->bracketExplode($having, ' ', '(', ')');
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$part = $this->parseAggregateFunction(array_shift($tokens));
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$operator = array_shift($tokens);
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$value = implode(' ', $tokens);
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// check the RHS for aggregate functions
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if (strpos($value, '(') !== false) {
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$value = $this->parseAggregateFunction($value);
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}
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$part .= ' ' . $operator . ' ' . $value;
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return $part;
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}
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}
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