[英]How to customise the Regex validation messages in a Zend\Form keeping them reusable?
正則Regex
的默認驗證錯誤消息是
"The input does not match against pattern '%pattern%'"
我可以用一個自定義的替代它
"Please make an input according to the pattern '%pattern%'"
但是隨后,我仍然收到一個帶有內部正則表達式的不太友好的消息。 我也可以寫
"Only capital letters are allowed"
但是在這種情況下,我需要為每個正則表達式字段編寫一條新消息。
是否可能/如何創建自己的但仍然靈活/可重用/可參數化的消息?
我想要的一個例子:
public function getInputFilterSpecification()
{
return [
'foo' => [
'validators' => [
[
'name' => 'Regex',
'options' => [
'pattern' => '/^[A-Z0-9:]*$/',
'pattern_user_friendly' => 'capital letters, numbers, and colons',
'message' => 'The input may only contain the following characters: %pattern_user_friendly%.'
]
],
]
],
'bar' => [
'validators' => [
[
'name' => 'Regex',
'options' => [
// new pattern
'pattern' => '/^[A-Z~:\\\\]*$/',
// new user friendly pattern description
'pattern_user_friendly' => 'capital letters, tildes, colons, and backslashes',
// still the same message
'message' => 'The input may only contain the following characters: %pattern_user_friendly%.'
]
],
]
],
];
}
解決方案是創建一個自定義的Validator
(擴展Regex
),在其中擴展messageVariables
列表,並添加用於將值設置為屬性的邏輯:
class Regex extends ZendRegex
{
protected $patternUserFriendly;
public function __construct($pattern)
{
// s. https://github.com/zendframework/zend-validator/blob/master/src/Regex.php#L34-L36
$this->messageVariables['patternUserFriendly'] = 'patternUserFriendly';
$this->messageTemplates[self::NOT_MATCH] =
'The input may only contain the following characters: %patternUserFriendly%.'
;
parent::__construct($pattern);
if (array_key_exists('patternUserFriendly', $pattern)) {
$this->patternUserFriendly = $pattern['patternUserFriendly'];
}
}
}
class MyFieldset extends ZendFieldset implements InputFilterProviderInterface
{
...
public function init()
{
parent::init();
$this->add(
[
'type' => 'text',
'name' => 'foo',
'options' => [
'label' => _('foo')
]
]);
$this->add(
[
'type' => 'text',
'name' => 'bar',
'options' => [
'label' => _('bar')
]
]);
}
public function getInputFilterSpecification()
{
return [
'bar' => [
'validators' => [
[
'name' => 'MyNamespace\Validator\Regex',
'options' => [
'pattern' => '/^[a-zA-z]*$/',
'patternUserFriendly' => '"a-z", "A-Z"'
]
]
]
]
];
}
}
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