mirror of
https://github.com/silverstripe/silverstripe-framework
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8dd644d25d
Namespace all templates Move difflib and BBCodeParser2 to thirdparty Remove deprecated API marked for removal in 4.0
70 lines
2.0 KiB
PHP
Executable File
70 lines
2.0 KiB
PHP
Executable File
<?php
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namespace SilverStripe\ORM\Filters;
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use SilverStripe\ORM\DataQuery;
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/**
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* Base class for creating comparison filters, eg; greater than, less than, greater than or equal, etc
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*
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* If you extend this abstract class, you must implement getOperator() and and getInverseOperator
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*
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* getOperator() should return a string operator that will be applied to the filter,
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* eg; if getOperator() returns "<" then this will be a LessThan filter
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*
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* getInverseOperator() should return a string operator that evaluates the inverse of getOperator(),
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* eg; if getOperator() returns "<", then the inverse should be ">=
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*/
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abstract class ComparisonFilter extends SearchFilter {
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/**
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* Should return an operator to be used for comparisons
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*
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* @return string Operator
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*/
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abstract protected function getOperator();
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/**
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* Should return an inverse operator to be used for comparisons
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*
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* @return string Inverse operator
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*/
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abstract protected function getInverseOperator();
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/**
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* Applies a comparison filter to the query
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* Handles SQL escaping for both numeric and string values
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*
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* @param DataQuery $query
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* @return DataQuery
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*/
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protected function applyOne(DataQuery $query) {
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$this->model = $query->applyRelation($this->relation);
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$predicate = sprintf("%s %s ?", $this->getDbName(), $this->getOperator());
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return $query->where(array(
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$predicate => $this->getDbFormattedValue()
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));
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}
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/**
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* Applies a exclusion(inverse) filter to the query
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* Handles SQL escaping for both numeric and string values
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*
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* @param DataQuery $query
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* @return DataQuery
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*/
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protected function excludeOne(DataQuery $query) {
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$this->model = $query->applyRelation($this->relation);
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$predicate = sprintf("%s %s ?", $this->getDbName(), $this->getInverseOperator());
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return $query->where(array(
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$predicate => $this->getDbFormattedValue()
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));
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}
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public function isEmpty() {
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return $this->getValue() === array() || $this->getValue() === null || $this->getValue() === '';
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}
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}
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