|
1
|
|
|
<?php |
|
2
|
|
|
namespace Intraxia\Jaxion\Axolotl; |
|
3
|
|
|
|
|
4
|
|
|
use Countable; |
|
5
|
|
|
use Intraxia\Jaxion\Contract\Axolotl\Serializes; |
|
6
|
|
|
use Iterator; |
|
7
|
|
|
use LogicException; |
|
8
|
|
|
use RuntimeException; |
|
9
|
|
|
|
|
10
|
|
|
/** |
|
11
|
|
|
* Class Collection |
|
12
|
|
|
* |
|
13
|
|
|
* @package Intraxia\Jaxion |
|
14
|
|
|
* @subpackage Axolotl |
|
15
|
|
|
*/ |
|
16
|
|
|
class Collection implements Countable, Iterator, Serializes { |
|
17
|
|
|
/** |
|
18
|
|
|
* Collection elements. |
|
19
|
|
|
* |
|
20
|
|
|
* @var array |
|
21
|
|
|
*/ |
|
22
|
|
|
protected $elements = array(); |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* Models registered to the collection. |
|
26
|
|
|
* |
|
27
|
|
|
* @var string |
|
28
|
|
|
*/ |
|
29
|
|
|
protected $model; |
|
30
|
|
|
|
|
31
|
|
|
/** |
|
32
|
|
|
* Where Collection is in loop. |
|
33
|
|
|
* |
|
34
|
|
|
* @var int |
|
35
|
|
|
*/ |
|
36
|
|
|
protected $position = 0; |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* Collection constructor. |
|
40
|
|
|
* |
|
41
|
|
|
* @param array $elements |
|
42
|
|
|
* @param array $config |
|
43
|
|
|
*/ |
|
44
|
60 |
|
public function __construct( array $elements = array(), array $config = array() ) { |
|
45
|
60 |
|
$this->parse_config( $config ); |
|
46
|
|
|
|
|
47
|
57 |
|
foreach ( $elements as $element ) { |
|
48
|
24 |
|
$this->add( $element ); |
|
49
|
57 |
|
} |
|
50
|
57 |
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* Adds a new element to the Collection. |
|
54
|
|
|
* |
|
55
|
|
|
* @param mixed $element |
|
56
|
|
|
* |
|
57
|
|
|
* @throws RuntimeException |
|
58
|
|
|
*/ |
|
59
|
27 |
|
public function add( $element ) { |
|
60
|
27 |
|
if ( $this->model && is_array( $element ) ) { |
|
61
|
9 |
|
$element = new $this->model( $element ); |
|
62
|
9 |
|
} |
|
63
|
|
|
|
|
64
|
27 |
|
if ( $this->model && ! ( $element instanceof $this->model ) ) { |
|
65
|
3 |
|
throw new RuntimeException; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
24 |
|
$this->elements[] = $element; |
|
69
|
24 |
|
} |
|
70
|
|
|
|
|
71
|
|
|
/** |
|
72
|
|
|
* Fetches the element at the provided index. |
|
73
|
|
|
* |
|
74
|
|
|
* @param int $index |
|
75
|
|
|
* |
|
76
|
|
|
* @return mixed |
|
77
|
|
|
*/ |
|
78
|
12 |
|
public function at( $index ) { |
|
79
|
12 |
|
return isset( $this->elements[ $index ] ) ? $this->elements[ $index ] : null; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
/** |
|
83
|
|
|
* Return the current element. |
|
84
|
|
|
* |
|
85
|
|
|
* @return mixed |
|
86
|
|
|
*/ |
|
87
|
3 |
|
public function current() { |
|
88
|
3 |
|
return $this->at( $this->position ); |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
/** |
|
92
|
|
|
* Move forward to next element. |
|
93
|
|
|
*/ |
|
94
|
3 |
|
public function next() { |
|
95
|
3 |
|
$this->position ++; |
|
96
|
3 |
|
} |
|
97
|
|
|
|
|
98
|
|
|
/** |
|
99
|
|
|
* Return the key of the current element. |
|
100
|
|
|
* |
|
101
|
|
|
* @return mixed |
|
102
|
|
|
*/ |
|
103
|
3 |
|
public function key() { |
|
104
|
3 |
|
return $this->position; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
/** |
|
108
|
|
|
* Checks if current position is valid. |
|
109
|
|
|
* |
|
110
|
|
|
* @return bool |
|
111
|
|
|
*/ |
|
112
|
3 |
|
public function valid() { |
|
113
|
3 |
|
return isset( $this->elements[ $this->position ] ); |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
/** |
|
117
|
|
|
* Rewind the Iterator to the first element. |
|
118
|
|
|
*/ |
|
119
|
3 |
|
public function rewind() { |
|
120
|
3 |
|
$this->position = 0; |
|
121
|
3 |
|
} |
|
122
|
|
|
|
|
123
|
|
|
/** |
|
124
|
|
|
* Count elements of an object. |
|
125
|
|
|
* |
|
126
|
|
|
* @return int |
|
127
|
|
|
*/ |
|
128
|
6 |
|
public function count() { |
|
129
|
6 |
|
return count( $this->elements ); |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* Parses the Collection config to set its properties. |
|
134
|
|
|
* |
|
135
|
|
|
* @param array $config |
|
136
|
|
|
* |
|
137
|
|
|
* @throws LogicException |
|
138
|
|
|
*/ |
|
139
|
60 |
|
protected function parse_config( array $config ) { |
|
140
|
60 |
|
if ( isset( $config['model'] ) ) { |
|
141
|
15 |
|
$model = $config['model']; |
|
142
|
|
|
|
|
143
|
15 |
|
if ( ! is_subclass_of( $model, 'Intraxia\Jaxion\Axolotl\Model' ) ) { |
|
144
|
3 |
|
throw new LogicException; |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
12 |
|
$this->model = $model; |
|
148
|
12 |
|
} |
|
149
|
57 |
|
} |
|
150
|
|
|
|
|
151
|
|
|
/** |
|
152
|
|
|
* {@inheritDoc} |
|
153
|
|
|
* |
|
154
|
|
|
* @return array |
|
155
|
|
|
*/ |
|
156
|
|
|
public function serialize() { |
|
157
|
9 |
|
return array_map(function( $element ) { |
|
158
|
6 |
|
if ( $element instanceof Serializes ) { |
|
159
|
3 |
|
return $element->serialize(); |
|
160
|
|
|
} |
|
161
|
|
|
|
|
162
|
3 |
|
return $element; |
|
163
|
9 |
|
}, $this->elements); |
|
164
|
|
|
} |
|
165
|
|
|
} |
|
166
|
|
|
|
intraxia /
jaxion
