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<?php |
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/** |
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* Created by PhpStorm. |
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* Author: Adrian Dumitru |
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* Date: 4/30/2017 8:26 PM |
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*/ |
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namespace Qpdb\QueryBuilder\Traits; |
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use Qpdb\QueryBuilder\Dependencies\QueryException; |
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use Qpdb\QueryBuilder\Dependencies\QueryHelper; |
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use Qpdb\QueryBuilder\Dependencies\QueryStructure; |
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/** |
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* Trait OrderBy |
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* @package Qpdb\QueryBuilder\Traits |
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* @property QueryStructure $queryStructure |
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*/ |
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trait OrderBy |
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{ |
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/** |
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* @param $column |
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* @param array $allowedColumns |
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* @return $this |
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* @throws QueryException |
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*/ |
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public function orderBy( $column, array $allowedColumns = [] ) |
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{ |
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if ( !$this->validateColumn( $column, $allowedColumns ) ) |
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throw new QueryException( 'Invalid column name in ORDER BY clause', QueryException::QUERY_ERROR_INVALID_COLUMN_NAME ); |
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$column = $this->queryStructure->prepare($column); |
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$this->queryStructure->setElement( QueryStructure::ORDER_BY, $column ); |
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return $this; |
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} |
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/** |
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* @param $column |
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* @param array $allowedColumns |
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* @return $this |
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* @throws QueryException |
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*/ |
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public function orderByDesc( $column, array $allowedColumns = [] ) |
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{ |
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if ( !$this->validateColumn( $column, $allowedColumns ) ) |
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throw new QueryException( 'Invalid column name in ORDER BY clause', QueryException::QUERY_ERROR_INVALID_COLUMN_NAME ); |
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$column = $this->queryStructure->prepare($column); |
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$this->queryStructure->setElement( QueryStructure::ORDER_BY, $column . ' DESC' ); |
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return $this; |
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} |
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/** |
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* @param $expression |
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* @return $this |
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* @throws QueryException |
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*/ |
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public function orderByExpression( $expression ) |
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{ |
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$this->queryStructure->setElement( QueryStructure::ORDER_BY, $expression ); |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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private function getOrderBySyntax() |
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{ |
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if ( count( $this->queryStructure->getElement( QueryStructure::ORDER_BY ) ) ) |
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return 'ORDER BY ' . QueryHelper::implode( $this->queryStructure->getElement( QueryStructure::ORDER_BY ), ', ' ); |
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return ''; |
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} |
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} |
adumitru68 /
QueryBuilder
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