1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* expression-types.php. |
5
|
|
|
* |
6
|
|
|
* |
7
|
|
|
* Copyright (c) 2010-2013, Justin Swanhart |
8
|
|
|
* with contributions by André Rothe <[email protected], [email protected]> |
9
|
|
|
* and David Négrier <[email protected]> |
10
|
|
|
* |
11
|
|
|
* All rights reserved. |
12
|
|
|
* |
13
|
|
|
* Redistribution and use in source and binary forms, with or without modification, |
14
|
|
|
* are permitted provided that the following conditions are met: |
15
|
|
|
* |
16
|
|
|
* * Redistributions of source code must retain the above copyright notice, |
17
|
|
|
* this list of conditions and the following disclaimer. |
18
|
|
|
* * Redistributions in binary form must reproduce the above copyright notice, |
19
|
|
|
* this list of conditions and the following disclaimer in the documentation |
20
|
|
|
* and/or other materials provided with the distribution. |
21
|
|
|
* |
22
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
23
|
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
24
|
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
25
|
|
|
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
26
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
27
|
|
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
28
|
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
29
|
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
30
|
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
31
|
|
|
* DAMAGE. |
32
|
|
|
*/ |
33
|
|
|
namespace SQLParser\Node; |
34
|
|
|
|
35
|
|
|
use Doctrine\DBAL\Connection; |
36
|
|
|
use Mouf\MoufInstanceDescriptor; |
37
|
|
|
use Mouf\MoufManager; |
38
|
|
|
use SQLParser\Node\Traverser\NodeTraverser; |
39
|
|
|
use SQLParser\Node\Traverser\VisitorInterface; |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* This class represents a node that is an SQL expression. |
43
|
|
|
* |
44
|
|
|
* @author David Négrier <[email protected]> |
45
|
|
|
*/ |
46
|
|
|
class Expression implements NodeInterface |
47
|
|
|
{ |
48
|
|
|
private $baseExpression; |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* Returns the base expression (the string that generated this expression). |
52
|
|
|
* |
53
|
|
|
* @return string |
54
|
|
|
*/ |
55
|
|
|
public function getBaseExpression() |
56
|
|
|
{ |
57
|
|
|
return $this->baseExpression; |
58
|
|
|
} |
59
|
|
|
|
60
|
|
|
/** |
61
|
|
|
* Sets the base expression (the string that generated this expression). |
62
|
|
|
* |
63
|
|
|
* @param string $baseExpression |
64
|
|
|
*/ |
65
|
|
|
public function setBaseExpression($baseExpression) |
66
|
|
|
{ |
67
|
|
|
$this->baseExpression = $baseExpression; |
68
|
|
|
} |
69
|
|
|
|
70
|
|
|
private $subTree; |
71
|
|
|
|
72
|
|
|
public function getSubTree() |
73
|
|
|
{ |
74
|
|
|
return $this->subTree; |
75
|
|
|
} |
76
|
|
|
|
77
|
|
|
/** |
78
|
|
|
* Sets the subtree. |
79
|
|
|
* |
80
|
|
|
* @Important |
81
|
|
|
* |
82
|
|
|
* @param array<NodeInterface>|NodeInterface $subTree |
83
|
|
|
*/ |
84
|
|
|
public function setSubTree($subTree) |
85
|
|
|
{ |
86
|
|
|
$this->subTree = $subTree; |
87
|
|
|
$this->subTree = NodeFactory::simplify($this->subTree); |
88
|
|
|
} |
89
|
|
|
|
90
|
|
|
private $alias; |
91
|
|
|
|
92
|
|
|
public function getAlias() |
93
|
|
|
{ |
94
|
|
|
return $this->alias; |
95
|
|
|
} |
96
|
|
|
|
97
|
|
|
/** |
98
|
|
|
* Sets the alias. |
99
|
|
|
* |
100
|
|
|
* @Important |
101
|
|
|
* |
102
|
|
|
* @param string $alias |
103
|
|
|
*/ |
104
|
|
|
public function setAlias($alias) |
105
|
|
|
{ |
106
|
|
|
$this->alias = $alias; |
107
|
|
|
} |
108
|
|
|
|
109
|
|
|
private $direction; |
110
|
|
|
|
111
|
|
|
public function getDiretion() |
112
|
|
|
{ |
113
|
|
|
return $this->direction; |
114
|
|
|
} |
115
|
|
|
|
116
|
|
|
/** |
117
|
|
|
* Sets the direction. |
118
|
|
|
* |
119
|
|
|
* @Important |
120
|
|
|
* |
121
|
|
|
* @param string $direction |
122
|
|
|
*/ |
123
|
|
|
public function setDirection($direction) |
124
|
|
|
{ |
125
|
|
|
$this->direction = $direction; |
126
|
|
|
} |
127
|
|
|
|
128
|
|
|
private $brackets = false; |
129
|
|
|
|
130
|
|
|
/** |
131
|
|
|
* Returns true if the expression is between brackets. |
132
|
|
|
* |
133
|
|
|
* @return bool |
134
|
|
|
*/ |
135
|
|
|
public function hasBrackets() |
136
|
|
|
{ |
137
|
|
|
return $this->brackets; |
138
|
|
|
} |
139
|
|
|
|
140
|
|
|
/** |
141
|
|
|
* Sets to true if the expression is between brackets. |
142
|
|
|
* |
143
|
|
|
* @Important |
144
|
|
|
* |
145
|
|
|
* @param bool $brackets |
146
|
|
|
*/ |
147
|
|
|
public function setBrackets($brackets) |
148
|
|
|
{ |
149
|
|
|
$this->brackets = $brackets; |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
/** |
153
|
|
|
* Returns a Mouf instance descriptor describing this object. |
154
|
|
|
* |
155
|
|
|
* @param MoufManager $moufManager |
156
|
|
|
* |
157
|
|
|
* @return MoufInstanceDescriptor |
158
|
|
|
*/ |
159
|
|
|
public function toInstanceDescriptor(MoufManager $moufManager) |
160
|
|
|
{ |
161
|
|
|
$instanceDescriptor = $moufManager->createInstance(get_called_class()); |
162
|
|
|
$instanceDescriptor->getProperty('baseExpression')->setValue(NodeFactory::nodeToInstanceDescriptor($this->baseExpression, $moufManager)); |
163
|
|
|
$instanceDescriptor->getProperty('subTree')->setValue(NodeFactory::nodeToInstanceDescriptor($this->subTree, $moufManager)); |
164
|
|
|
$instanceDescriptor->getProperty('alias')->setValue(NodeFactory::nodeToInstanceDescriptor($this->alias, $moufManager)); |
165
|
|
|
$instanceDescriptor->getProperty('direction')->setValue(NodeFactory::nodeToInstanceDescriptor($this->direction, $moufManager)); |
166
|
|
|
$instanceDescriptor->getProperty('brackets')->setValue(NodeFactory::nodeToInstanceDescriptor($this->brackets, $moufManager)); |
167
|
|
|
|
168
|
|
|
return $instanceDescriptor; |
169
|
|
|
} |
170
|
|
|
|
171
|
|
|
/** |
172
|
|
|
* Renders the object as a SQL string. |
173
|
|
|
* |
174
|
|
|
* @param Connection $dbConnection |
175
|
|
|
* @param array $parameters |
176
|
|
|
* @param number $indent |
177
|
|
|
* @param int $conditionsMode |
178
|
|
|
* |
179
|
|
|
* @return string |
180
|
|
|
*/ |
181
|
|
|
public function toSql(array $parameters = array(), Connection $dbConnection = null, $indent = 0, $conditionsMode = self::CONDITION_APPLY) |
182
|
|
|
{ |
183
|
|
|
$sql = NodeFactory::toSql($this->subTree, $dbConnection, $parameters, ' ', false, $indent, $conditionsMode); |
184
|
|
|
|
185
|
|
|
if ($this->alias) { |
186
|
|
|
$sql .= ' AS '.$this->alias; |
187
|
|
|
} |
188
|
|
|
if ($this->direction) { |
189
|
|
|
$sql .= ' '.$this->direction; |
190
|
|
|
} |
191
|
|
|
if ($this->brackets) { |
192
|
|
|
$sql = '('.$sql.')'; |
193
|
|
|
} |
194
|
|
|
|
195
|
|
|
return $sql; |
196
|
|
|
} |
197
|
|
|
|
198
|
|
|
/** |
199
|
|
|
* Walks the tree of nodes, calling the visitor passed in parameter. |
200
|
|
|
* |
201
|
|
|
* @param VisitorInterface $visitor |
202
|
|
|
*/ |
203
|
|
|
public function walk(VisitorInterface $visitor) |
204
|
|
|
{ |
205
|
|
|
$node = $this; |
206
|
|
|
$result = $visitor->enterNode($node); |
207
|
|
|
if ($result instanceof NodeInterface) { |
208
|
|
|
$node = $result; |
209
|
|
|
} |
210
|
|
|
if ($result !== NodeTraverser::DONT_TRAVERSE_CHILDREN) { |
211
|
|
|
foreach ($this->subTree as $key => $operand) { |
|
|
|
|
212
|
|
|
$result2 = $operand->walk($visitor); |
213
|
|
|
if ($result2 === NodeTraverser::REMOVE_NODE) { |
214
|
|
|
unset($this->subTree[$key]); |
215
|
|
|
} elseif ($result2 instanceof NodeInterface) { |
216
|
|
|
$this->subTree[$key] = $result2; |
217
|
|
|
} |
218
|
|
|
} |
219
|
|
|
} |
220
|
|
|
|
221
|
|
|
return $visitor->leaveNode($node); |
222
|
|
|
} |
223
|
|
|
} |
224
|
|
|
|
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.