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<?php |
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/** |
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* Trait Enumerable |
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* |
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* @filesource Enumerable.php |
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* @created 30.05.2017 |
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* @package chillerlan\Database\Traits |
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* @author Smiley <[email protected]> |
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* @copyright 2017 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\Database\Traits; |
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use chillerlan\Database\DBException; |
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/** |
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* @link http://api.prototypejs.org/language/Enumerable/ |
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*/ |
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trait Enumerable{ |
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/** |
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* @var array |
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*/ |
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protected $array = []; |
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/** |
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* @var int |
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*/ |
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protected $offset = 0; |
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/************* |
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* prototype * |
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*************/ |
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/** |
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* @link http://api.prototypejs.org/language/Enumerable/prototype/toArray/ |
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* |
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* @return array |
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*/ |
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public function __toArray():array { |
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return $this->array; |
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} |
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/** |
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* @link http://api.prototypejs.org/language/Enumerable/prototype/each/ |
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* |
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* @param callable $callback |
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* |
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* @return $this |
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*/ |
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public function __each($callback){ |
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$this->__map($callback); |
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return $this; |
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} |
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/** |
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* @link http://api.prototypejs.org/language/Enumerable/prototype/collect/ |
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* @link http://api.prototypejs.org/language/Enumerable/prototype/map/ |
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* |
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* @param callable $callback |
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* |
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* @return array |
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* @throws \Exception |
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*/ |
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public function __map($callback):array { |
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if(!is_callable($callback)){ |
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throw new DBException('invalid callback'); |
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} |
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$return = []; |
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foreach($this->array as $index => $element){ |
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$return[$index] = call_user_func_array($callback, [$element, $index]); |
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} |
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return $return; |
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} |
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/** |
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* @link http://api.prototypejs.org/language/Enumerable/prototype/pluck/ |
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* |
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* @param string $property |
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* |
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* @return array |
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*/ |
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public function __pluck(string $property):array { |
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return array_column($this->array, $property); |
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} |
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/** |
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* @link http://api.prototypejs.org/language/Array/prototype/reverse/ |
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* |
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* @return $this |
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*/ |
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public function __reverse(){ |
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$this->array = array_reverse($this->array); |
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$this->offset = 0; |
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return $this; |
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} |
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} |
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chillerlan /
php-database
