# Source for file Nest.php

Documentation is available at Nest.php

1. <?php
2. /*
3. * $Id: Self.php 1434 2007-05-22 15:57:17Z 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_Relation_Association');
22. /**
23. * Doctrine_Relation_Association_Self
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: 1434 $
31. * @author Konsta Vesterinen <kvesteri@cc.hut.fi>
32. */
33. class Doctrine_Relation_Nest extends Doctrine_Relation_Association
34. {
35. /**
36. * getRelationDql
37. *
38. * @param integer $count
39. * @return string
40. */
41. public function getRelationDql($count, $context = 'record')
42. {
43. switch ($context) {
44. case 'record':
45. $sub = 'SELECT '.$this->definition['foreign']
46. . ' FROM '.$this->definition['refTable']->getTableName()
47. . ' WHERE '.$this->definition['local']
48. . ' = ?';
50. $sub2 = 'SELECT '.$this->definition['local']
51. . ' FROM '.$this->definition['refTable']->getTableName()
52. . ' WHERE '.$this->definition['foreign']
53. . ' = ?';
55. $dql = 'FROM ' . $this->definition['table']->getComponentName()
56. . '.' . $this->definition['refTable']->getComponentName()
57. . ' WHERE ' . $this->definition['table']->getComponentName()
58. . '.' . $this->definition['table']->getIdentifier()
59. . ' IN (' . $sub . ')'
60. . ' || ' . $this->definition['table']->getComponentName()
61. . '.' . $this->definition['table']->getIdentifier()
62. . ' IN (' . $sub2 . ')';
63. break;
64. case 'collection':
65. $sub = substr(str_repeat('?, ', $count),0,-2);
66. $dql = 'FROM '.$this->definition['refTable']->getComponentName()
67. . '.' . $this->definition['table']->getComponentName()
68. . ' WHERE '.$this->definition['refTable']->getComponentName()
69. . '.' . $this->definition['local'] . ' IN (' . $sub . ')';
70. };
72. return $dql;
73. }
74. /**
75. public function fetchRelatedFor(Doctrine_Record $record)
76. {
77. $id = $record->getIncremented();
79. if (empty($id) || ! $this->definition['table']->getAttribute(Doctrine::ATTR_LOAD_REFERENCES)) {
80. return new Doctrine_Collection($this->getTable());
81. } else {
82. $q = new Doctrine_Query();
84. $c = $this->getTable()->getComponentName();
85. $a = substr($c, 0, 1);
86. $c2 = $this->getAssociationTable()->getComponentName();
87. $a2 = substr($c2, 0, 1);
89. $q->from($c)
90. ->innerJoin($c . '.' . $c2)
92. $sub = 'SELECT ' . $this->getForeign()
93. . ' FROM ' . $c2
94. . ' WHERE ' . $this->getLocal()
95. . ' = ?';
96. }
97. }
98. */
100. public function fetchRelatedFor(Doctrine_Record $record)
101. {
102. $id = $record->getIncremented();
105. if (empty($id) || ! $this->definition['table']->getAttribute(Doctrine::ATTR_LOAD_REFERENCES)) {
106. return new Doctrine_Collection($this->getTable());
107. } else {
108. $q = new Doctrine_RawSql();
110. $assocTable = $this->getAssociationFactory()->getTableName();
111. $tableName = $record->getTable()->getTableName();
112. $identifier = $record->getTable()->getIdentifier();
114. $sub = 'SELECT ' . $this->getForeign()
115. . ' FROM ' . $assocTable
116. . ' WHERE ' . $this->getLocal()
117. . ' = ?';
119. $condition[] = $tableName . '.' . $identifier . ' IN (' . $sub . ')';
120. $joinCondition[] = $tableName . '.' . $identifier . ' = ' . $assocTable . '.' . $this->getForeign();
122. if ($this->definition['equal']) {
123. $sub2 = 'SELECT ' . $this->getLocal()
124. . ' FROM ' . $assocTable
125. . ' WHERE ' . $this->getForeign()
126. . ' = ?';
128. $condition[] = $tableName . '.' . $identifier . ' IN (' . $sub2 . ')';
129. $joinCondition[] = $tableName . '.' . $identifier . ' = ' . $assocTable . '.' . $this->getLocal();
130. }
131. $q->select('{'.$tableName.'.*}, {'.$assocTable.'.*}')
132. ->from($tableName . ' INNER JOIN ' . $assocTable . ' ON ' . implode(' OR ', $joinCondition))
133. ->where(implode(' OR ', $condition));
134. $q->addComponent($tableName, $record->getTable()->getComponentName());
135. $q->addComponent($assocTable, $record->getTable()->getComponentName(). '.' . $this->getAssociationFactory()->getComponentName());
137. $params = ($this->definition['equal']) ? array($id, $id) : array($id);
139. return $q->execute($params);
140. }
141. }
142. }