# Source for file JoinCondition.php

Documentation is available at JoinCondition.php

1. <?php
2. /*
3. * $Id: JoinCondition.php 2217 2007-08-11 21:53:02Z 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_JoinCondition
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: 2217 $
31. * @author Konsta Vesterinen <kvesteri@cc.hut.fi>
32. */
33. class Doctrine_Query_JoinCondition extends Doctrine_Query_Condition
34. {
35. public function load($condition)
36. {
37. $condition = trim($condition);
39. $e = Doctrine_Tokenizer::sqlExplode($condition);
41. if(count($e) > 2) {
42. $a = explode('.', $e[0]);
43. $field = array_pop($a);
44. $reference = implode('.', $a);
45. $operator = $e[1];
46. $value = $e[2];
48. $alias = $this->query->getTableAlias($reference);
49. $map = $this->query->getAliasDeclaration($reference);
50. $table = $map['table'];
51. // check if value is enumerated value
52. $enumIndex = $table->enumIndex($field, trim($value, "'"));
55. if (substr($value, 0, 1) == '(') {
56. // trim brackets
57. $trimmed = Doctrine_Tokenizer::bracketTrim($value);
59. if (substr($trimmed, 0, 4) == 'FROM' || substr($trimmed, 0, 6) == 'SELECT') {
60. // subquery found
61. $q = $this->query->createSubquery();
62. $value = '(' . $q->parseQuery($trimmed)->getQuery() . ')';
63. } elseif (substr($trimmed, 0, 4) == 'SQL:') {
64. $value = '(' . substr($trimmed, 4) . ')';
65. } else {
66. // simple in expression found
67. $e = Doctrine_Tokenizer::sqlExplode($trimmed, ',');
69. $value = array();
70. foreach ($e as $part) {
71. $index = $table->enumIndex($field, trim($part, "'"));
72. if ($index !== false) {
73. $value[] = $index;
74. } else {
75. $value[] = $this->parseLiteralValue($part);
76. }
77. }
78. $value = '(' . implode(', ', $value) . ')';
79. }
80. } else {
81. if ($enumIndex !== false) {
82. $value = $enumIndex;
83. } else {
84. $value = $this->parseLiteralValue($value);
85. }
86. }
88. switch ($operator) {
89. case '<':
90. case '>':
91. case '=':
92. case '!=':
93. if ($enumIndex !== false) {
94. $value = $enumIndex;
95. }
96. default:
97. $condition = $alias . '.' . $field . ' '
98. . $operator . ' ' . $value;
99. }
101. }
102. return $condition;
103. }
104. }