Completed
Push — 2.1 ( 481970...56545c )
by
unknown
11:50
created

ArrayExpression::offsetSet()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 2

Importance

Changes 0
Metric Value
dl 0
loc 4
ccs 0
cts 3
cp 0
rs 10
c 0
b 0
f 0
cc 1
eloc 2
nc 1
nop 2
crap 2
1
<?php
2
/**
3
 * @link http://www.yiiframework.com/
4
 * @copyright Copyright (c) 2008 Yii Software LLC
5
 * @license http://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
 */
28
class ArrayExpression implements ExpressionInterface, \ArrayAccess, \Countable, \IteratorAggregate
29
{
30
    /**
31
     * @var null|string the type of the array elements. Defaults to `null` which means the type is
32
     * not explicitly specified.
33
     *
34
     * Note that in case when type is not specified explicitly and DBMS can not guess it from the context,
35
     * SQL error will be raised.
36
     */
37
    private $type;
38
    /**
39
     * @var array|QueryInterface the array's content.
40
     * In can be represented as an array of values or a [[Query]] that returns these values.
41
     */
42
    private $value;
43
    /**
44
     * @var int the number of indices needed to select an element
45
     */
46
    private $dimension;
47
48
49
    /**
50
     * ArrayExpression constructor.
51
     *
52
     * @param array|QueryInterface|mixed $value the array content. Either represented as an array of values or a Query that
53
     * returns these values. A single value will be considered as an array containing one element.
54
     * @param string|null $type the type of the array elements. Defaults to `null` which means the type is
55
     * not explicitly specified. In case when type is not specified explicitly and DBMS can not guess it from the context,
56
     * SQL error will be raised.
57
     * @param int $dimension the number of indices needed to select an element
58
     */
59 14
    public function __construct($value, $type = null, $dimension = 1)
60
    {
61 14
        $this->value = $value;
62 14
        $this->type = $type;
63 14
        $this->dimension = $dimension;
64 14
    }
65
66
    /**
67
     * @return null|string
68
     * @see type
69
     */
70 25
    public function getType()
71
    {
72 25
        return $this->type;
73
    }
74
75
    /**
76
     * @return array|mixed|QueryInterface
77
     * @see value
78
     */
79 28
    public function getValue()
80
    {
81 28
        return $this->value;
82
    }
83
84
    /**
85
     * @return int the number of indices needed to select an element
86
     * @see dimensions
87
     */
88 25
    public function getDimension()
89
    {
90 25
        return $this->dimension;
91
    }
92
93
    /**
94
     * Whether a offset exists
95
     *
96
     * @link http://php.net/manual/en/arrayaccess.offsetexists.php
97
     * @param mixed $offset <p>
98
     * An offset to check for.
99
     * </p>
100
     * @return bool true on success or false on failure.
101
     * </p>
102
     * <p>
103
     * The return value will be casted to boolean if non-boolean was returned.
104
     * @since 2.0.14
105
     */
106
    public function offsetExists($offset)
107
    {
108
        return isset($this->value[$offset]);
109
    }
110
111
    /**
112
     * Offset to retrieve
113
     *
114
     * @link http://php.net/manual/en/arrayaccess.offsetget.php
115
     * @param mixed $offset <p>
116
     * The offset to retrieve.
117
     * </p>
118
     * @return mixed Can return all value types.
119
     * @since 2.0.14
120
     */
121 2
    public function offsetGet($offset)
122
    {
123 2
        return $this->value[$offset];
124
    }
125
126
    /**
127
     * Offset to set
128
     *
129
     * @link http://php.net/manual/en/arrayaccess.offsetset.php
130
     * @param mixed $offset <p>
131
     * The offset to assign the value to.
132
     * </p>
133
     * @param mixed $value <p>
134
     * The value to set.
135
     * </p>
136
     * @return void
137
     * @since 2.0.14
138
     */
139
    public function offsetSet($offset, $value)
140
    {
141
        $this->value[$offset] = $value;
142
    }
143
144
    /**
145
     * Offset to unset
146
     *
147
     * @link http://php.net/manual/en/arrayaccess.offsetunset.php
148
     * @param mixed $offset <p>
149
     * The offset to unset.
150
     * </p>
151
     * @return void
152
     * @since 2.0.14
153
     */
154
    public function offsetUnset($offset)
155
    {
156
        unset($this->value[$offset]);
157
    }
158
159
    /**
160
     * Count elements of an object
161
     *
162
     * @link http://php.net/manual/en/countable.count.php
163
     * @return int The custom count as an integer.
164
     * </p>
165
     * <p>
166
     * The return value is cast to an integer.
167
     * @since 2.0.14
168
     */
169
    public function count()
170
    {
171
        return count($this->value);
172
    }
173
174
    /**
175
     * Retrieve an external iterator
176
     *
177
     * @link http://php.net/manual/en/iteratoraggregate.getiterator.php
178
     * @return Traversable An instance of an object implementing <b>Iterator</b> or
179
     * <b>Traversable</b>
180
     * @since 2.0.14.1
181
     * @throws InvalidConfigException when ArrayExpression contains QueryInterface object
182
     */
183 2
    public function getIterator()
184
    {
185 2
        if ($this->getValue() instanceof QueryInterface) {
186
            throw new InvalidConfigException('The ArrayExpression class can not be iterated when the value is a QueryInterface object');
187
        }
188
189 2
        return new \ArrayIterator($this->getValue());
190
    }
191
}
192