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<?php |
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/* |
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* This file is part of the CRUDlex package. |
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* |
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* (c) Philip Lehmann-Böhm <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace CRUDlex; |
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use \Valdi\Validator\ValidatorInterface; |
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/** |
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* A validator to check for an unique field. |
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*/ |
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class UniqueValidator implements ValidatorInterface |
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{ |
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/** |
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* Checks whether the unique constraint is valid for a many-to-many field. |
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* |
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* @param array $value |
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* the value to check |
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* @param AbstractData $data |
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* the data to perform the check with |
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* @param Entity $entity |
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* the entity to perform the check on |
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* @param $field |
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* the many field to perform the check on |
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* |
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* @return boolean |
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* true if it is a valid unique many-to-many constraint |
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*/ |
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protected function isValidUniqueMany(array $value, AbstractData $data, Entity $entity, $field) |
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{ |
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return !$data->hasManySet($field, array_column($value, 'id'), $entity->get('id')); |
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} |
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/** |
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* Performs the regular unique validation. |
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* |
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* @param $value |
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* the value to validate |
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* @param $data |
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* the data instance to validate with |
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* @param $entity |
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* the entity of the field |
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* @param $field |
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* the field to validate |
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* @param $type |
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* the type of the field to validate |
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* |
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* @return boolean |
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* true if everything is valid |
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*/ |
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protected function isValidUnique($value, AbstractData $data, Entity $entity, $field, $type) |
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{ |
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$params = [$field => $type === 'reference' ? $value['id'] : $value]; |
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$paramsOperators = [$field => '=']; |
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if ($entity->get('id') !== null) { |
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$params['id'] = $entity->get('id'); |
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$paramsOperators['id'] = '!='; |
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} |
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$amount = intval($data->countBy($data->getDefinition()->getTable(), $params, $paramsOperators, true)); |
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return $amount == 0; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isValid($value, array $parameters) |
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{ |
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if (in_array($value, [null, ''])) { |
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return true; |
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} |
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$data = $parameters[0]; |
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$entity = $parameters[1]; |
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$field = $parameters[2]; |
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$type = $data->getDefinition()->getType($field); |
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if ($type === 'many') { |
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return $this->isValidUniqueMany($value, $data, $entity, $field); |
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} |
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return $this->isValidUnique($value, $data, $entity, $field, $type); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getInvalidDetails() |
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{ |
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return 'unique'; |
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} |
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} |
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philiplb /
CRUDlex
