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<?php |
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/** |
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* File containing the DoctrineDatabase base field value Handler class. |
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* |
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* @copyright Copyright (C) eZ Systems AS. All rights reserved. |
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* @license For full copyright and license information view LICENSE file distributed with this source code. |
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*/ |
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namespace eZ\Publish\Core\Search\Legacy\Content\Common\Gateway\CriterionHandler\FieldValue; |
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use eZ\Publish\Core\Persistence\Database\DatabaseHandler; |
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use eZ\Publish\API\Repository\Values\Content\Query\Criterion; |
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use eZ\Publish\API\Repository\Values\Content\Query\Criterion\Operator as CriterionOperator; |
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use eZ\Publish\Core\Persistence\Database\SelectQuery; |
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use eZ\Publish\Core\Persistence\TransformationProcessor; |
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use RuntimeException; |
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/** |
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* Content locator gateway implementation using the DoctrineDatabase. |
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*/ |
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abstract class Handler |
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{ |
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/** |
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* DB handler to fetch additional field information. |
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* |
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* @var \eZ\Publish\Core\Persistence\Database\DatabaseHandler |
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*/ |
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protected $dbHandler; |
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/** |
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* Map of criterion operators to the respective function names |
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* in the DoctrineDatabase DBAL. |
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* |
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* @var array |
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*/ |
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protected $comparatorMap = array( |
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CriterionOperator::EQ => 'eq', |
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CriterionOperator::GT => 'gt', |
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CriterionOperator::GTE => 'gte', |
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CriterionOperator::LT => 'lt', |
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CriterionOperator::LTE => 'lte', |
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CriterionOperator::LIKE => 'like', |
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); |
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/** |
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* Transformation processor. |
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* |
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* @var \eZ\Publish\Core\Persistence\TransformationProcessor |
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*/ |
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protected $transformationProcessor; |
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/** |
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* Creates a new criterion handler. |
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* |
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* @param \eZ\Publish\Core\Persistence\Database\DatabaseHandler $dbHandler |
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* @param \eZ\Publish\Core\Persistence\TransformationProcessor $transformationProcessor |
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*/ |
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public function __construct(DatabaseHandler $dbHandler, TransformationProcessor $transformationProcessor) |
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{ |
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$this->dbHandler = $dbHandler; |
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$this->transformationProcessor = $transformationProcessor; |
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} |
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/** |
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* Generates query expression for operator and value of a Field Criterion. |
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* |
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* @throws \RuntimeException If operator is not handled. |
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* |
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* @param \eZ\Publish\Core\Persistence\Database\SelectQuery $query |
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* @param \eZ\Publish\API\Repository\Values\Content\Query\Criterion $criterion |
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* @param string $column |
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* |
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* @return \eZ\Publish\Core\Persistence\Database\Expression |
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*/ |
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public function handle(SelectQuery $query, Criterion $criterion, $column) |
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{ |
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$column = $this->dbHandler->quoteColumn($column); |
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switch ($criterion->operator) { |
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case Criterion\Operator::IN: |
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$filter = $query->expr->in( |
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$column, |
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array_map(array($this, 'lowercase'), $criterion->value) |
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); |
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break; |
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case Criterion\Operator::BETWEEN: |
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$filter = $query->expr->between( |
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$column, |
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$query->bindValue($this->lowercase($criterion->value[0])), |
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$query->bindValue($this->lowercase($criterion->value[1])) |
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); |
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break; |
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case Criterion\Operator::EQ: |
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case Criterion\Operator::GT: |
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case Criterion\Operator::GTE: |
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case Criterion\Operator::LT: |
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case Criterion\Operator::LTE: |
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case Criterion\Operator::LIKE: |
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$operatorFunction = $this->comparatorMap[$criterion->operator]; |
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$filter = $query->expr->$operatorFunction( |
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$column, |
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$query->bindValue($this->lowercase($criterion->value)) |
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); |
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break; |
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case Criterion\Operator::CONTAINS: |
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$filter = $query->expr->like( |
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$column, |
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$query->bindValue( |
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'%' . $this->prepareLikeString($criterion->value) . '%' |
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) |
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); |
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break; |
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default: |
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throw new RuntimeException("Unknown operator '{$criterion->operator}' for Field criterion handler."); |
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} |
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return $filter; |
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} |
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/** |
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* Returns the given $string prepared for use in SQL LIKE clause. |
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* |
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* LIKE clause wildcards '%' and '_' contained in the given $string will be escaped. |
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* |
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* @param $string |
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* |
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* @return string |
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*/ |
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protected function prepareLikeString($string) |
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{ |
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return addcslashes($this->lowercase($string), '%_'); |
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} |
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/** |
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* Downcases a given string using string transformation processor. |
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* |
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* @param string $string |
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* |
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* @return string |
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*/ |
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protected function lowerCase($string) |
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{ |
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return $this->transformationProcessor->transformByGroup($string, 'lowercase'); |
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} |
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} |
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ezsystems /
ezpublish-kernel
