1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\validators;
use Yii;
/**
* RequiredValidator validates that the specified attribute does not have null or empty value.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class RequiredValidator extends Validator
{
/**
* @var boolean whether to skip this validator if the value being validated is empty.
*/
public $skipOnEmpty = false;
/**
* @var mixed the desired value that the attribute must have.
* If this is null, the validator will validate that the specified attribute is not empty.
* If this is set as a value that is not null, the validator will validate that
* the attribute has a value that is the same as this property value.
* Defaults to null.
* @see strict
*/
public $requiredValue;
/**
* @var boolean whether the comparison between the attribute value and [[requiredValue]] is strict.
* When this is true, both the values and types must match.
* Defaults to false, meaning only the values need to match.
* Note that when [[requiredValue]] is null, if this property is true, the validator will check
* if the attribute value is null; If this property is false, the validator will call [[isEmpty]]
* to check if the attribute value is empty.
*/
public $strict = false;
/**
* @var string the user-defined error message. It may contain the following placeholders which
* will be replaced accordingly by the validator:
*
* - `{attribute}`: the label of the attribute being validated
* - `{value}`: the value of the attribute being validated
* - `{requiredValue}`: the value of [[requiredValue]]
*/
public $message;
/**
* @inheritdoc
*/
public function init()
{
parent::init();
if ($this->message === null) {
$this->message = $this->requiredValue === null ? Yii::t('yii', '{attribute} cannot be blank.')
: Yii::t('yii', '{attribute} must be "{requiredValue}".');
}
}
/**
* @inheritdoc
*/
protected function validateValue($value)
{
if ($this->requiredValue === null) {
if ($this->strict && $value !== null || !$this->strict && !$this->isEmpty($value, true)) {
return null;
}
} elseif (!$this->strict && $value == $this->requiredValue || $this->strict && $value === $this->requiredValue) {
return null;
}
if ($this->requiredValue === null) {
return [$this->message, []];
} else {
return [$this->message, [
'requiredValue' => $this->requiredValue,
]];
}
}
/**
* @inheritdoc
*/
public function clientValidateAttribute($object, $attribute, $view)
{
$options = [];
if ($this->requiredValue !== null) {
$options['message'] = Yii::$app->getI18n()->format($this->message, [
'requiredValue' => $this->requiredValue,
], Yii::$app->language);
$options['requiredValue'] = $this->requiredValue;
} else {
$options['message'] = $this->message;
}
if ($this->strict) {
$options['strict'] = 1;
}
$options['message'] = Yii::$app->getI18n()->format($options['message'], [
'attribute' => $object->getAttributeLabel($attribute),
], Yii::$app->language);
ValidationAsset::register($view);
return 'yii.validation.required(value, messages, ' . json_encode($options) . ');';
}
}