|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Zerg\Field; |
|
4
|
|
|
|
|
5
|
|
|
use Zerg\Stream\AbstractStream; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Conditional field can represent one of other given field or field collection depending on value of related field. |
|
9
|
|
|
* |
|
10
|
|
|
* @since 0.1 |
|
11
|
|
|
* @package Zerg\Field |
|
12
|
|
|
*/ |
|
13
|
|
|
class Conditional extends AbstractField |
|
14
|
|
|
{ |
|
15
|
|
|
/** |
|
16
|
|
|
* @var int|string Key of selected declaration. |
|
17
|
|
|
*/ |
|
18
|
|
|
protected $key; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* @var array|AbstractField[] Array of possible declarations. |
|
22
|
|
|
*/ |
|
23
|
|
|
protected $fields; |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* @var array|null|AbstractField Default declaration. |
|
27
|
|
|
*/ |
|
28
|
|
|
protected $default; |
|
29
|
|
|
|
|
30
|
5 |
|
public function __construct($key, array $fields = [], $options = []) |
|
31
|
|
|
{ |
|
32
|
5 |
|
if (is_array($key)) { |
|
33
|
1 |
|
$this->configure($key); |
|
34
|
1 |
|
} else { |
|
35
|
5 |
|
$this->setKey($key); |
|
36
|
5 |
|
$this->setFields($fields); |
|
37
|
5 |
|
$this->configure($options); |
|
38
|
|
|
} |
|
39
|
5 |
|
} |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* Resolve needed field instance and call it's parse method. |
|
43
|
|
|
* |
|
44
|
|
|
* @api |
|
45
|
|
|
* @param AbstractStream $stream Stream from which resolved field reads. |
|
46
|
|
|
* @return mixed Value returned by resolved field. |
|
47
|
|
|
*/ |
|
48
|
2 |
|
public function parse(AbstractStream $stream) |
|
49
|
|
|
{ |
|
50
|
2 |
|
$field = $this->resolveField(); |
|
51
|
|
|
|
|
52
|
1 |
|
return $field->parse($stream); |
|
53
|
|
|
} |
|
54
|
|
|
|
|
55
|
|
|
/** |
|
56
|
|
|
* Resolve value by DataSet path, choose related declaration and return field instance. |
|
57
|
|
|
* |
|
58
|
|
|
* @return AbstractField Field instance created by chosen declaration. |
|
59
|
|
|
* @throws InvalidKeyException If no one declaration is not related to resolved value and |
|
60
|
|
|
* default declaration is not presented. |
|
61
|
|
|
*/ |
|
62
|
3 |
|
public function resolveField() |
|
63
|
|
|
{ |
|
64
|
3 |
|
$field = $this; |
|
65
|
|
|
do { |
|
66
|
3 |
|
$field = $field->resolve(); |
|
67
|
2 |
|
} while ($field instanceof self); |
|
68
|
|
|
|
|
69
|
2 |
|
return $field; |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
3 |
|
private function resolve() |
|
73
|
|
|
{ |
|
74
|
3 |
|
$key = $this->resolveProperty('key'); |
|
75
|
|
|
|
|
76
|
3 |
|
if (isset($this->fields[$key])) { |
|
77
|
2 |
|
$field = $this->fields[$key]; |
|
78
|
3 |
|
} elseif ($this->default !== null) { |
|
79
|
1 |
|
$field = $this->default; |
|
80
|
1 |
|
} else { |
|
81
|
1 |
|
throw new InvalidKeyException( |
|
82
|
1 |
|
"Value '{$key}' does not correspond to a valid conditional key. Presented keys: '" . |
|
83
|
1 |
|
implode("', '", array_keys($this->fields)) . "'" |
|
84
|
1 |
|
); |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
// get form cache |
|
88
|
2 |
|
if ($field instanceof AbstractField) { |
|
89
|
1 |
|
return $field; |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
2 |
|
$field = Factory::get($field); |
|
93
|
2 |
|
$field->setDataSet($this->getDataSet()); |
|
94
|
|
|
|
|
95
|
|
|
// cache field instance |
|
96
|
2 |
|
if (isset($this->fields[$key])) { |
|
97
|
2 |
|
$this->fields[$key] = $field; |
|
98
|
2 |
|
} else { |
|
99
|
1 |
|
$this->default = $field; |
|
100
|
|
|
} |
|
101
|
|
|
|
|
102
|
2 |
|
return $field; |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
/** |
|
106
|
|
|
* @param int|string $key |
|
107
|
|
|
*/ |
|
108
|
5 |
|
public function setKey($key) |
|
109
|
|
|
{ |
|
110
|
5 |
|
$this->key = $key; |
|
111
|
5 |
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* @param array|null|AbstractField $default |
|
115
|
|
|
*/ |
|
116
|
5 |
|
public function setDefault($default) |
|
117
|
|
|
{ |
|
118
|
5 |
|
$this->default = $default; |
|
119
|
5 |
|
} |
|
120
|
|
|
|
|
121
|
|
|
/** |
|
122
|
|
|
* @param array|AbstractField[] $fields |
|
123
|
|
|
*/ |
|
124
|
5 |
|
public function setFields($fields) |
|
125
|
|
|
{ |
|
126
|
5 |
|
$this->fields = $fields; |
|
127
|
|
|
} |
|
128
|
|
|
} |
klermonte /
zerg
