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<?php |
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/** |
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* @license LGPLv3, http://opensource.org/licenses/LGPL-3.0 |
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* @copyright Metaways Infosystems GmbH, 2011 |
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* @copyright Aimeos (aimeos.org), 2015-2016 |
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* @package MW |
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* @subpackage Common |
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*/ |
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namespace Aimeos\MW\Criteria\Expression\Compare; |
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/** |
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* Abstract class with common methods for comparing objects. |
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* |
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* @package MW |
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* @subpackage Common |
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*/ |
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abstract class Base |
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extends \Aimeos\MW\Criteria\Expression\Base |
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implements \Aimeos\MW\Criteria\Expression\Compare\Iface |
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{ |
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private $operator; |
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private $name; |
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private $value; |
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/** |
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* Initializes the object. |
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* |
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* @param string $operator Operator used for the expression |
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* @param string $name Name of variable or column that should be compared. |
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* @param string|array $value Value that the variable or column should be compared to |
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*/ |
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public function __construct( $operator, $name, $value ) |
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{ |
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$this->operator = $operator; |
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$this->name = $name; |
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$this->value = $value; |
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} |
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/** |
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* Returns the operator used for the expression. |
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* |
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* @return string Operator used for the expression |
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*/ |
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public function getOperator() |
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{ |
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return $this->operator; |
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} |
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/** |
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* Returns the left side of the compare expression. |
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* |
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* @return string Name of variable or column that should be compared |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* Returns the right side of the compare expression. |
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* |
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* @return string|array Value that the variable or column should be compared to |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* Generates a string from the expression objects. |
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* |
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* @param array $types Associative list of variable or column names as keys and their corresponding types |
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* @param array $translations Associative list of variable or column names that should be translated |
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* @param array $plugins Associative list of item names and plugins implementing \Aimeos\MW\Criteria\Plugin\Iface |
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* @return string Expression that evaluates to a boolean result |
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*/ |
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public function toString( array $types, array $translations = array(), array $plugins = array() ) |
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{ |
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$this->setPlugins( $plugins ); |
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$name = $this->name; |
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if( ( $transname = $this->translateName( $name, $translations ) ) === '' ) { |
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$transname = $name; |
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} |
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if( !isset( $types[$name] ) ) { |
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throw new \Aimeos\MW\Common\Exception( sprintf( 'Invalid name "%1$s"', $name ) ); |
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} |
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if( $this->value === null && ( $this->operator === '==' || $this->operator === '!=' ) ) { |
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return $this->createNullTerm( $transname ); |
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} |
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if( is_array( $this->value ) ) { |
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return $this->createListTerm( $transname, $types[$name] ); |
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} |
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return $this->createTerm( $transname, $types[$name], $this->value ); |
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} |
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/** |
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* Creates a term string from the given parameters. |
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* |
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* @param string $name Translated name of variable or column that should be compared |
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* @param integer $type Type constant |
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* @param string $value Value that the variable or column should be compared to |
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* @return string Created term string (name operator value) |
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*/ |
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abstract protected function createTerm( $name, $type, $value ); |
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/** |
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* Creates a term which contains a null value. |
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* |
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* @param string $name Translated name of the variable or column |
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* @return string String that can be inserted into a SQL statement |
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*/ |
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abstract protected function createNullTerm( $name ); |
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/** |
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* Creates a term from a list of values. |
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* |
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* @param string $name Translated name of the variable or column |
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* @param integer $type Type constant |
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* @return string String that can be inserted into a SQL statement |
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*/ |
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abstract protected function createListTerm( $name, $type ); |
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} |
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aimeos /
aimeos-core
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