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<?php |
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namespace Kontrolio\Rules; |
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use UnexpectedValueException; |
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/** |
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* Wrapper for callback validation rules. |
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* |
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* @package Kontrolio\Rules |
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*/ |
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class CallableRuleWrapper extends AbstractRule |
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{ |
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/** |
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* Original rule. |
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* |
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* @var callable |
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*/ |
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private $rule; |
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/** |
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* Value that must be validated. |
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* |
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* @var mixed |
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*/ |
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private $value; |
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/** |
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* Validation rule identifier. |
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* |
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* @var string |
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*/ |
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private $name; |
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/** |
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* Valid/invalid state. |
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* |
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* @var bool |
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*/ |
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private $valid = false; |
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/** |
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* Skipping state. |
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* |
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* @var bool |
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*/ |
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private $skip = false; |
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/** |
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* Validation rule constructor. |
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* |
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* @param callable|array $rule |
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* @param mixed $value |
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*/ |
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public function __construct($rule, $value = null) |
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{ |
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is_array($rule) |
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? $this->setDefaultsFromArray($rule) |
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: $this->setDefaults($rule, $value); |
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} |
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/** |
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* Sets default values for wrapper's properties. |
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* |
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* @param callable $rule |
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* @param mixed $value |
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*/ |
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private function setDefaults(callable $rule, $value) |
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{ |
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$this->rule = $rule; |
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$this->value = $value; |
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$this->emptyAllowed = false; |
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$this->skip = false; |
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} |
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/** |
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* Sets properties coming from resulting array of the callback validation rule. |
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* |
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* @param array $attributes |
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* @throws UnexpectedValueException |
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*/ |
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private function setDefaultsFromArray(array $attributes) |
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{ |
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if (!isset($attributes['valid'])) { |
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throw new UnexpectedValueException('Validation check missing.'); |
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} |
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if (isset($attributes['name'])) { |
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$this->name = $attributes['name']; |
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} |
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$this->valid = (bool) $attributes['valid']; |
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$this->emptyAllowed = isset($attributes['empty_allowed']) |
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? (bool) $attributes['empty_allowed'] |
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: false; |
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$this->skip = isset($attributes['skip']) ? (bool) $attributes['skip'] : false; |
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$this->violations = isset($attributes['violations']) ? $attributes['violations'] : []; |
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} |
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/** |
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* Returns validation rule identifier. |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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if (isset($this->name)) { |
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return $this->name; |
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} |
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return uniqid(parent::getName() . '_', true); |
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} |
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/** |
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* Validates input. |
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* |
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* @param mixed $input |
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* |
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* @return bool |
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*/ |
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public function isValid($input = null) |
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{ |
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$rule = $this->rule; |
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return is_callable($rule) ? $rule($this->value) : $this->valid; |
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} |
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/** |
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* When simply true or some conditions return true, informs validator service that validation can be skipped. |
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* |
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* @param mixed $input |
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* |
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* @return bool |
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*/ |
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public function canSkipValidation($input = null) |
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{ |
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return $this->skip; |
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} |
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} |
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franzose /
kontrolio
