90 lines
2.9 KiB
PHP
90 lines
2.9 KiB
PHP
<?php
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/*
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* $Id$
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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.com>.
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*/
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Doctrine::autoload("Doctrine_Query_Part");
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/**
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* Doctrine_Query_From
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*
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* @package Doctrine
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @category Object Relational Mapping
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* @link www.phpdoctrine.com
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* @since 1.0
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* @version $Revision$
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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*/
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class Doctrine_Query_From extends Doctrine_Query_Part {
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/**
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* DQL FROM PARSER
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* parses the from part of the query string
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* @param string $str
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* @return void
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*/
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final public function parse($str) {
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$str = trim($str);
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$parts = Doctrine_Query::bracketExplode($str, 'JOIN');
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$operator = false;
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switch(trim($parts[0])) {
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case 'INNER':
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$operator = ':';
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case 'LEFT':
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array_shift($parts);
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}
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$last = '';
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foreach($parts as $k => $part) {
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$part = trim($part);
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if(empty($part)) {
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continue;
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}
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$e = explode(' ', $part);
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if(end($e) == 'INNER' || end($e) == 'LEFT')
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$last = array_pop($e);
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$part = implode(' ', $e);
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foreach(Doctrine_Query::bracketExplode($part, ',') as $reference) {
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$reference = trim($reference);
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$e = explode('.', $reference);
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if($operator) {
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$reference = array_shift($e) . $operator . implode('.', $e);
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}
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$table = $this->query->load($reference);
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}
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$operator = ($last == 'INNER') ? ':' : '.';
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}
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}
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public function __toString() {
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return ( ! empty($this->parts))?implode(", ", $this->parts):'';
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}
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}
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