1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* @link https://www.yiiframework.com/ |
4
|
|
|
* @copyright Copyright (c) 2008 Yii Software LLC |
5
|
|
|
* @license https://www.yiiframework.com/license/ |
6
|
|
|
*/ |
7
|
|
|
|
8
|
|
|
namespace yii\db; |
9
|
|
|
|
10
|
|
|
use Traversable; |
11
|
|
|
use yii\base\InvalidConfigException; |
12
|
|
|
|
13
|
|
|
/** |
14
|
|
|
* Class ArrayExpression represents an array SQL expression. |
15
|
|
|
* |
16
|
|
|
* Expressions of this type can be used in conditions as well: |
17
|
|
|
* |
18
|
|
|
* ```php |
19
|
|
|
* $query->andWhere(['@>', 'items', new ArrayExpression([1, 2, 3], 'integer')]) |
20
|
|
|
* ``` |
21
|
|
|
* |
22
|
|
|
* which, depending on DBMS, will result in a well-prepared condition. For example, in |
23
|
|
|
* PostgreSQL it will be compiled to `WHERE "items" @> ARRAY[1, 2, 3]::integer[]`. |
24
|
|
|
* |
25
|
|
|
* @author Dmytro Naumenko <[email protected]> |
26
|
|
|
* @since 2.0.14 |
27
|
|
|
* @phpcs:disable Squiz.NamingConventions.ValidVariableName.PrivateNoUnderscore |
28
|
|
|
*/ |
29
|
|
|
class ArrayExpression implements ExpressionInterface, \ArrayAccess, \Countable, \IteratorAggregate |
30
|
|
|
{ |
31
|
|
|
/** |
32
|
|
|
* @var string|null the type of the array elements. Defaults to `null` which means the type is |
33
|
|
|
* not explicitly specified. |
34
|
|
|
* |
35
|
|
|
* Note that in case when type is not specified explicitly and DBMS can not guess it from the context, |
36
|
|
|
* SQL error will be raised. |
37
|
|
|
*/ |
38
|
|
|
private $type; |
39
|
|
|
/** |
40
|
|
|
* @var array|QueryInterface the array's content. |
41
|
|
|
* In can be represented as an array of values or a [[Query]] that returns these values. |
42
|
|
|
*/ |
43
|
|
|
private $value; |
44
|
|
|
/** |
45
|
|
|
* @var int the number of indices needed to select an element |
46
|
|
|
*/ |
47
|
|
|
private $dimension; |
48
|
|
|
|
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* ArrayExpression constructor. |
52
|
|
|
* |
53
|
|
|
* @param array|QueryInterface|mixed $value the array content. Either represented as an array of values or a Query that |
54
|
|
|
* returns these values. A single value will be considered as an array containing one element. |
55
|
|
|
* @param string|null $type the type of the array elements. Defaults to `null` which means the type is |
56
|
|
|
* not explicitly specified. In case when type is not specified explicitly and DBMS can not guess it from the context, |
57
|
|
|
* SQL error will be raised. |
58
|
|
|
* @param int $dimension the number of indices needed to select an element |
59
|
|
|
*/ |
60
|
3 |
|
public function __construct($value, $type = null, $dimension = 1) |
61
|
|
|
{ |
62
|
3 |
|
if ($value instanceof self) { |
63
|
|
|
$value = $value->getValue(); |
64
|
|
|
} |
65
|
|
|
|
66
|
3 |
|
$this->value = $value; |
67
|
3 |
|
$this->type = $type; |
68
|
3 |
|
$this->dimension = $dimension; |
69
|
|
|
} |
70
|
|
|
|
71
|
|
|
/** |
72
|
|
|
* @return string|null |
73
|
|
|
*/ |
74
|
|
|
public function getType() |
75
|
|
|
{ |
76
|
|
|
return $this->type; |
77
|
|
|
} |
78
|
|
|
|
79
|
|
|
/** |
80
|
|
|
* @return array|mixed|QueryInterface |
81
|
|
|
*/ |
82
|
3 |
|
public function getValue() |
83
|
|
|
{ |
84
|
3 |
|
return $this->value; |
85
|
|
|
} |
86
|
|
|
|
87
|
|
|
/** |
88
|
|
|
* @return int the number of indices needed to select an element |
89
|
|
|
*/ |
90
|
|
|
public function getDimension() |
91
|
|
|
{ |
92
|
|
|
return $this->dimension; |
93
|
|
|
} |
94
|
|
|
|
95
|
|
|
/** |
96
|
|
|
* Whether a offset exists |
97
|
|
|
* |
98
|
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetexists.php |
99
|
|
|
* @param mixed $offset <p> |
100
|
|
|
* An offset to check for. |
101
|
|
|
* </p> |
102
|
|
|
* @return bool true on success or false on failure. |
103
|
|
|
* </p> |
104
|
|
|
* <p> |
105
|
|
|
* The return value will be casted to boolean if non-boolean was returned. |
106
|
|
|
* @since 2.0.14 |
107
|
|
|
*/ |
108
|
|
|
#[\ReturnTypeWillChange] |
109
|
|
|
public function offsetExists($offset) |
110
|
|
|
{ |
111
|
|
|
return isset($this->value[$offset]); |
112
|
|
|
} |
113
|
|
|
|
114
|
|
|
/** |
115
|
|
|
* Offset to retrieve |
116
|
|
|
* |
117
|
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetget.php |
118
|
|
|
* @param mixed $offset <p> |
119
|
|
|
* The offset to retrieve. |
120
|
|
|
* </p> |
121
|
|
|
* @return mixed Can return all value types. |
122
|
|
|
* @since 2.0.14 |
123
|
|
|
*/ |
124
|
|
|
#[\ReturnTypeWillChange] |
125
|
|
|
public function offsetGet($offset) |
126
|
|
|
{ |
127
|
|
|
return $this->value[$offset]; |
128
|
|
|
} |
129
|
|
|
|
130
|
|
|
/** |
131
|
|
|
* Offset to set |
132
|
|
|
* |
133
|
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetset.php |
134
|
|
|
* @param mixed $offset <p> |
135
|
|
|
* The offset to assign the value to. |
136
|
|
|
* </p> |
137
|
|
|
* @param mixed $value <p> |
138
|
|
|
* The value to set. |
139
|
|
|
* </p> |
140
|
|
|
* @return void |
141
|
|
|
* @since 2.0.14 |
142
|
|
|
*/ |
143
|
|
|
#[\ReturnTypeWillChange] |
144
|
|
|
public function offsetSet($offset, $value) |
145
|
|
|
{ |
146
|
|
|
$this->value[$offset] = $value; |
147
|
|
|
} |
148
|
|
|
|
149
|
|
|
/** |
150
|
|
|
* Offset to unset |
151
|
|
|
* |
152
|
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetunset.php |
153
|
|
|
* @param mixed $offset <p> |
154
|
|
|
* The offset to unset. |
155
|
|
|
* </p> |
156
|
|
|
* @return void |
157
|
|
|
* @since 2.0.14 |
158
|
|
|
*/ |
159
|
|
|
#[\ReturnTypeWillChange] |
160
|
|
|
public function offsetUnset($offset) |
161
|
|
|
{ |
162
|
|
|
unset($this->value[$offset]); |
163
|
|
|
} |
164
|
|
|
|
165
|
|
|
/** |
166
|
|
|
* Count elements of an object |
167
|
|
|
* |
168
|
|
|
* @link https://www.php.net/manual/en/countable.count.php |
169
|
|
|
* @return int The custom count as an integer. |
170
|
|
|
* </p> |
171
|
|
|
* <p> |
172
|
|
|
* The return value is cast to an integer. |
173
|
|
|
* @since 2.0.14 |
174
|
|
|
*/ |
175
|
|
|
#[\ReturnTypeWillChange] |
176
|
|
|
public function count() |
177
|
|
|
{ |
178
|
|
|
return count($this->value); |
|
|
|
|
179
|
|
|
} |
180
|
|
|
|
181
|
|
|
/** |
182
|
|
|
* Retrieve an external iterator |
183
|
|
|
* |
184
|
|
|
* @link https://www.php.net/manual/en/iteratoraggregate.getiterator.php |
185
|
|
|
* @return Traversable An instance of an object implementing <b>Iterator</b> or |
186
|
|
|
* <b>Traversable</b> |
187
|
|
|
* @since 2.0.14.1 |
188
|
|
|
* @throws InvalidConfigException when ArrayExpression contains QueryInterface object |
189
|
|
|
*/ |
190
|
3 |
|
#[\ReturnTypeWillChange] |
191
|
|
|
public function getIterator() |
192
|
|
|
{ |
193
|
3 |
|
$value = $this->getValue(); |
194
|
3 |
|
if ($value instanceof QueryInterface) { |
195
|
|
|
throw new InvalidConfigException('The ArrayExpression class can not be iterated when the value is a QueryInterface object'); |
196
|
|
|
} |
197
|
3 |
|
if ($value === null) { |
|
|
|
|
198
|
|
|
$value = []; |
199
|
|
|
} |
200
|
|
|
|
201
|
3 |
|
return new \ArrayIterator($value); |
202
|
|
|
} |
203
|
|
|
} |
204
|
|
|
|