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<?php |
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namespace Kaliop\eZMigrationBundle\API\Collection; |
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/** |
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* Implements a 'typed array' structure |
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*/ |
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class AbstractCollection extends \ArrayObject |
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{ |
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protected $allowedClass; |
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/** |
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* AbstractCollection constructor. |
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* @param array $input |
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* @param int $flags |
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* @param string $iterator_class |
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*/ |
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public function __construct($input = array(), $flags = 0, $iterator_class = "ArrayIterator") |
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{ |
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foreach ($input as $value) { |
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if (!$this->isValidElement($value)) { |
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$this->throwInvalid($value); |
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} |
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} |
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parent::__construct($input, $flags, $iterator_class); |
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} |
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/** |
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* @param mixed $value |
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*/ |
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public function append($value) |
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{ |
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if (!$this->isValidElement($value)) { |
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$this->throwInvalid($value); |
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} |
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parent::append($value); |
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} |
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/** |
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* @param mixed $input |
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* @return array the old array |
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*/ |
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public function exchangeArray($input) |
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{ |
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foreach ($input as $value) { |
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if (!$this->isValidElement($value)) { |
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$this->throwInvalid($value); |
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} |
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} |
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return parent::exchangeArray($input); |
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} |
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/** |
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* @param mixed $index |
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* @param mixed $value |
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*/ |
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public function offsetSet($index, $value) |
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{ |
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if (!$this->isValidElement($value)) { |
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$this->throwInvalid($value); |
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} |
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parent::offsetSet($index, $value); |
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} |
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protected function isValidElement($value) |
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{ |
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return is_a($value, $this->allowedClass); |
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} |
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protected function throwInvalid($value) |
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{ |
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throw new \InvalidArgumentException("Can not add element of type '" . (is_object($value) ? get_class($value) : gettype($value)) . "' to Collection of type '" . get_class($this) . "'"); |
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} |
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/** |
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* Allow the class to be serialized to php using var_export |
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* @param array $data |
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* @return static |
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*/ |
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public static function __set_state(array $data) |
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{ |
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return new static($data); |
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} |
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} |
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kaliop-uk /
ezmigrationbundle
