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<?php |
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namespace steevanb\SymfonyValidatorConstraints\Constraints; |
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use Symfony\Component\Validator\Constraint; |
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use Symfony\Component\Validator\ConstraintValidator; |
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class UniqueObjectValidator extends ConstraintValidator |
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{ |
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/** @var array */ |
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protected $traversablesValues = array(); |
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/** |
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* @param mixed $traversable |
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* @param UniqueObject $constraint |
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*/ |
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public function validate($traversable, Constraint $constraint) |
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{ |
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$this |
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->assertIsTraversable($traversable) |
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->defineTraversablesValues($traversable, $constraint); |
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foreach ($traversable as $data) { |
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$this->compare($data, $constraint); |
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} |
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} |
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/** |
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* @param mixed $data |
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* @throws \Exception |
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* @return $this |
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*/ |
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protected function assertIsTraversable($data) |
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{ |
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if (is_array($data) === false && $data instanceof \Traversable === false) { |
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throw new \Exception(gettype($data) . ' is not iterable.'); |
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} |
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return $this; |
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} |
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/** |
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* @param array|\Traversable $traversable |
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* @param UniqueObject $uniqueObject |
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* @return $this |
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*/ |
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protected function defineTraversablesValues($traversable, UniqueObject $uniqueObject) |
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{ |
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foreach ($traversable as $data) { |
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$traversableHash = spl_object_hash($data); |
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$this->traversablesValues[$traversableHash] = array('properties' => array(), 'getters' => array()); |
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foreach ($uniqueObject->getProperties() as $property) { |
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$this->traversablesValues[$traversableHash]['properties'][$property] = |
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$this->getTraversableValue($data->$property); |
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} |
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foreach ($uniqueObject->getGetters() as $getter) { |
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$this->traversablesValues[$traversableHash]['getters'][$getter] = |
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$this->getTraversableValue($data->$getter()); |
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} |
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} |
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return $this; |
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} |
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/** |
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* @param mixed $value |
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* @return string |
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*/ |
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protected function getTraversableValue($value) |
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{ |
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return (is_object($value)) ? spl_object_hash($value) : $value; |
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} |
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/** |
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* @param mixed $data |
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* @param UniqueObject $uniqueObject |
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*/ |
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protected function compare($data, UniqueObject $uniqueObject) |
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{ |
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static $alreadyTested = array(); |
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if (in_array($uniqueObject->getUniqid(), $alreadyTested)) { |
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return; |
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} |
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$dataHash = spl_object_hash($data); |
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$dataValues = $this->traversablesValues[$dataHash]; |
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foreach ($this->traversablesValues as $objectHash => $values) { |
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if ( |
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$objectHash === $dataHash |
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|| ( |
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count($values['properties']) !== count($dataValues['properties']) |
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|| count($values['getters']) !== count($dataValues['getters']) |
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) |
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) { |
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continue; |
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} |
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$isSame = true; |
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foreach (array('properties', 'getters') as $type) { |
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foreach ($dataValues[$type] as $name => $value) { |
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if (array_key_exists($name, $values[$type])) { |
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if ($this->compareValues($values[$type][$name], $value, $uniqueObject->getStrict()) === false) { |
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$isSame = false; |
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break 2; |
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} |
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} else { |
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$isSame = false; |
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break 2; |
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} |
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} |
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} |
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if ($isSame) { |
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$this |
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->context |
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->buildViolation($uniqueObject->getMessage()) |
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->atPath($this->context->getPropertyName()) |
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->addViolation(); |
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$alreadyTested[] = $uniqueObject->getUniqid(); |
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break; |
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} |
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} |
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} |
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/** |
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* @param mixed $value1 |
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* @param mixed $value2 |
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* @param bool $strict |
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* @return bool |
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*/ |
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protected function compareValues($value1, $value2, $strict) |
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{ |
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return ($strict) ? $value1 === $value2 : $value1 == $value2; |
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} |
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} |
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steevanb /
symfony-validator-constraints
