Файл: framework/search/filters/ComparisonFilter.php
Строк: 76
<?php
/**
* Base class for creating comparison filters, eg; greater than, less than, greater than or equal, etc
*
* If you extend this abstract class, you must implement getOperator() and and getInverseOperator
*
* getOperator() should return a string operator that will be applied to the filter,
* eg; if getOperator() returns "<" then this will be a LessThan filter
*
* getInverseOperator() should return a string operator that evaluates the inverse of getOperator(),
* eg; if getOperator() returns "<", then the inverse should be ">=
*
* @package framework
* @subpackage search
*/
abstract class ComparisonFilter extends SearchFilter {
/**
* Should return an operator to be used for comparisons
*
* @return string Operator
*/
abstract protected function getOperator();
/**
* Should return an inverse operator to be used for comparisons
*
* @return string Inverse operator
*/
abstract protected function getInverseOperator();
/**
* Applies a comparison filter to the query
* Handles SQL escaping for both numeric and string values
*
* @param DataQuery $query
* @return $this|DataQuery
*/
protected function applyOne(DataQuery $query) {
$this->model = $query->applyRelation($this->relation);
$predicate = sprintf("%s %s ?", $this->getDbName(), $this->getOperator());
return $query->where(array(
$predicate => $this->getDbFormattedValue()
));
}
/**
* Applies a exclusion(inverse) filter to the query
* Handles SQL escaping for both numeric and string values
*
* @param DataQuery $query
* @return $this|DataQuery
*/
protected function excludeOne(DataQuery $query) {
$this->model = $query->applyRelation($this->relation);
$predicate = sprintf("%s %s ?", $this->getDbName(), $this->getInverseOperator());
return $query->where(array(
$predicate => $this->getDbFormattedValue()
));
}
public function isEmpty() {
return $this->getValue() === array() || $this->getValue() === null || $this->getValue() === '';
}
}