# Source for file Groupby.php

Documentation is available at Groupby.php

1. <?php
2. /*
3. * $Id: Groupby.php 2238 2007-08-14 20:16:31Z zYne $
4. *
5. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
6. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
7. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
8. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
9. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
10. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
11. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
12. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
13. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
14. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
15. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
16. *
17. * This software consists of voluntary contributions made by many individuals
18. * and is licensed under the LGPL. For more information, see
19. * <http://www.phpdoctrine.com>.
20. */
21. Doctrine::autoload('Doctrine_Query_Part');
22. /**
23. * Doctrine_Query_Groupby
24. *
25. * @package Doctrine
26. * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
27. * @category Object Relational Mapping
28. * @link www.phpdoctrine.com
29. * @since 1.0
30. * @version $Revision: 2238 $
31. * @author Konsta Vesterinen <kvesteri@cc.hut.fi>
32. */
33. class Doctrine_Query_Groupby extends Doctrine_Query_Part
34. {
35. /**
36. * DQL GROUP BY PARSER
37. * parses the group by part of the query string
38. *
39. * @param string $str
40. * @return void
41. */
42. public function parse($str, $append = false)
43. {
44. $r = array();
45. foreach (explode(',', $str) as $reference) {
46. $reference = trim($reference);
47. $e = explode('.', $reference);
49. if (count($e) > 1) {
50. $field = array_pop($e);
51. $ref = implode('.', $e);
52. $this->query->load($ref);
54. $r[] = $this->query->getTableAlias($ref) . '.' . $field;
55. } else {
56. $alias = end($e);
57. $r[] = $this->query->getAggregateAlias($alias);
58. }
59. }
60. return implode(', ', $r);
61. }
62. }