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<?php |
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/** |
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* Linna Filter |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2017, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types = 1); |
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namespace Linna\Filter; |
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use ReflectionClass; |
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/** |
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* Filter. |
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*/ |
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class Filter |
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{ |
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/** |
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* @var array Rules for filtering. |
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*/ |
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private $rules = []; |
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/** |
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* @var array User data. |
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*/ |
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private $data = []; |
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/** |
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* @var array Error messages. |
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*/ |
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private $messages = []; |
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/** |
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* @var int Occurred errors. |
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*/ |
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private $errors = 0; |
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/** |
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* Class constructor. |
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* |
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* @param array $rules |
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* @param array $data |
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*/ |
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public function __construct(array $rules, array $data) |
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{ |
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$this->rules = $rules; |
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$this->data = $data; |
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$this->getRules(); |
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} |
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/** |
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* Return occurred error number. |
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* |
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* @return int |
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*/ |
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public function getErrors(): int |
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{ |
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return $this->errors; |
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} |
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/** |
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* Return error messages. |
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* |
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* @return array |
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*/ |
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public function getMessages(): array |
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{ |
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return $this->messages; |
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} |
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/** |
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* Return passed data. |
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* |
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* @return array |
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*/ |
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public function getData(): array |
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{ |
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return $this->data; |
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} |
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/** |
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* Get parsed rules. |
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*/ |
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private function getRules() |
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{ |
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$rules = $this->rules; |
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foreach ($rules as $rule) { |
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$this->ruleToField((new RuleInterpreter($rule))->get()); |
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} |
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} |
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/** |
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* Apply rules to a field. |
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* |
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* @param array $rules |
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*/ |
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private function ruleToField(array $rules) |
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{ |
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foreach ($rules as $rule) { |
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$field = $rule[0]; |
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$filter = $rule[2][0]; |
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$reflection = new ReflectionClass('Linna\Filter\Rules\\' . $filter); |
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$instance = $reflection->newInstance(); |
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$received = ''; |
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if (isset($this->data[$field])) { |
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$received = $this->data[$field]; |
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} |
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if (call_user_func_array([$instance, 'validate'], $this->getArguments($rule[2][2], $rule[3], $received))) { |
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$this->errors++; |
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$this->messages[$field][$filter] = ['expected' => $rule[3], 'received' => $received]; |
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continue; |
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} |
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if ($reflection->hasMethod('sanitize')) { |
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$instance->sanitize($this->data[$field]); |
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} |
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} |
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} |
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/** |
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* Return arguments for validation. |
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* |
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* @param int $args |
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* @param mixed $expected |
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* @param mixed $received |
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* |
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* @return array |
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*/ |
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private function getArguments(int $args, $expected, $received): array |
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{ |
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if ($args === 0) { |
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return [$received]; |
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} |
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if (is_array($expected)) { |
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array_unshift($expected, $received); |
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return $expected; |
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} |
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return [$received, $expected]; |
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} |
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} |
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linna /
filter
