48 lines
899 B
PHP
48 lines
899 B
PHP
<?php namespace System\Validation\Rules;
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use System\Validation\Rule;
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class With_Callback extends Rule {
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/**
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* The callback that will be used to validate the attribute.
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*
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* @var function
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*/
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public $callback;
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/**
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* Evaluate the validity of an attribute.
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*
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* @param string $attribute
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* @param array $attributes
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* @return void
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*/
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public function check($attribute, $attributes)
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{
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if ( ! array_key_exists($attribute, $attributes))
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{
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return true;
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}
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if ( ! is_callable($this->callback))
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{
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throw new \Exception("The validation callback for the [$attribute] attribute is not callable.");
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}
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return call_user_func($this->callback, $attributes[$attribute]);
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}
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/**
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* Set the validation callback.
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*
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* @param function $callback
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* @return With_Callback
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*/
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public function using($callback)
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{
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$this->callback = $callback;
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return $this;
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}
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} |