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<?php |
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namespace Happyr\DoctrineSpecification\Filter; |
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use Doctrine\ORM\QueryBuilder; |
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use Doctrine\ORM\Query\Expr\Comparison as DoctrineComparison; |
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use Happyr\DoctrineSpecification\Exception\InvalidArgumentException; |
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use Happyr\DoctrineSpecification\Operand\ArgumentToOperandConverter; |
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use Happyr\DoctrineSpecification\Operand\Operand; |
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/** |
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* Comparison class. |
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* |
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* This is used when you need to compare two values |
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*/ |
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class Comparison implements Filter |
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{ |
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const EQ = '='; |
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const NEQ = '<>'; |
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const LT = '<'; |
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const LTE = '<='; |
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const GT = '>'; |
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const GTE = '>='; |
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/** |
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* @var Operand|string |
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*/ |
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protected $field; |
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/** |
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* @var Operand|string |
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*/ |
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protected $value; |
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/** |
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* @var string |
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*/ |
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protected $dqlAlias; |
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/** |
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* @var array |
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*/ |
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private static $operators = array( |
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self::EQ, self::NEQ, |
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self::LT, self::LTE, |
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self::GT, self::GTE, |
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); |
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/** |
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* @var string |
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*/ |
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private $operator; |
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/** |
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* Make sure the $field has a value equals to $value. |
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* |
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* @param string $operator |
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* @param Operand|string $field |
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* @param Operand|mixed $value |
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* @param string|null $dqlAlias |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct($operator, $field, $value, $dqlAlias = null) |
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{ |
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if (!in_array($operator, self::$operators)) { |
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throw new InvalidArgumentException(sprintf( |
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'"%s" is not a valid comparison operator. Valid operators are: "%s"', |
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$operator, |
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implode(', ', self::$operators) |
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)); |
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} |
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$this->operator = $operator; |
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$this->field = $field; |
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$this->value = $value; |
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$this->dqlAlias = $dqlAlias; |
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} |
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/** |
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* @param QueryBuilder $qb |
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* @param string $dqlAlias |
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* |
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* @return string |
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*/ |
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public function getFilter(QueryBuilder $qb, $dqlAlias) |
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{ |
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if (null !== $this->dqlAlias) { |
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$dqlAlias = $this->dqlAlias; |
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} |
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$field = ArgumentToOperandConverter::toField($this->field); |
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$value = ArgumentToOperandConverter::toValue($this->value); |
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return (string) new DoctrineComparison( |
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$field->transform($qb, $dqlAlias), |
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$this->operator, |
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$value->transform($qb, $dqlAlias) |
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); |
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} |
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} |
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Happyr /
Doctrine-Specification
