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<?php |
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|
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namespace Rakit\Validation\Rules; |
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|
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use Rakit\Validation\Rule; |
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use InvalidArgumentException; |
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use Closure; |
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|
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class Callback extends Rule |
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{ |
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|
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/** @var string */ |
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protected $message = "The :attribute is not valid"; |
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|
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/** @var array */ |
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protected $fillableParams = ['callback']; |
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|
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/** |
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* Set the Callback closure |
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* |
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* @param Closure $callback |
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* @return self |
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*/ |
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public function setCallback(Closure $callback): Rule |
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{ |
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return $this->setParameter('callback', $callback); |
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} |
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|
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/** |
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* Check the $value is valid |
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* |
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* @param mixed $value |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function check($value): bool |
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{ |
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$this->requireParameters($this->fillableParams); |
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|
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$callback = $this->parameter('callback'); |
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if (false === $callback instanceof Closure) { |
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$key = $this->attribute->getKey(); |
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throw new InvalidArgumentException("Callback rule for '{$key}' is not callable."); |
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} |
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|
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$callback = $callback->bindTo($this); |
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$invalidMessage = $callback($value); |
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|
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if (is_string($invalidMessage)) { |
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$this->setMessage($invalidMessage); |
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return false; |
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} elseif (false === $invalidMessage) { |
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return false; |
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} |
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|
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return true; |
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} |
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} |
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|
