mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-07-12 06:23:47 +02:00
119 lines
2.9 KiB
PHP
119 lines
2.9 KiB
PHP
<?php
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/**
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* @package framework
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* @subpackage search
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*/
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/**
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* Matches textual content with a substring match from the beginning
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* of the string.
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*
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* <code>
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* "abcdefg" => "defg" # false
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* "abcdefg" => "abcd" # true
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* </code>
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*
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* @package framework
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* @subpackage search
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*/
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class StartsWithFilter extends SearchFilter {
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protected function comparison($exclude = false) {
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$modifiers = $this->getModifiers();
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if(($extras = array_diff($modifiers, array('not', 'nocase', 'case'))) != array()) {
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throw new InvalidArgumentException(
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get_class($this) . ' does not accept ' . implode(', ', $extras) . ' as modifiers');
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}
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if(DB::getConn() instanceof PostgreSQLDatabase) {
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if(in_array('case', $modifiers)) {
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$comparison = 'LIKE';
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} else {
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$comparison = 'ILIKE';
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}
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} elseif(in_array('case', $modifiers)) {
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$comparison = 'LIKE BINARY';
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} else {
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$comparison = 'LIKE';
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}
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if($exclude) {
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$comparison = 'NOT ' . $comparison;
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}
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return $comparison;
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}
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/**
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* Applies a match on the starting characters of a field value.
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*
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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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return $query->where(sprintf(
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"%s %s '%s%%'",
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$this->getDbName(),
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$this->comparison(false),
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Convert::raw2sql($this->getValue())
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));
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}
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/**
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* Applies a match on the starting characters of a field value.
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* Matches against one of the many values.
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*
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* @return DataQuery
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*/
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protected function applyMany(DataQuery $query) {
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$this->model = $query->applyRelation($this->relation);
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$connectives = array();
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foreach($this->getValue() as $value) {
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$connectives[] = sprintf(
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"%s %s '%s%%'",
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$this->getDbName(),
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$this->comparison(false),
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Convert::raw2sql($value)
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);
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}
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$whereClause = implode(' OR ', $connectives);
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return $query->where($whereClause);
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}
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/**
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* Excludes a match on the starting characters of a field value.
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*
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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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return $query->where(sprintf(
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"%s %s '%s%%'",
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$this->getDbName(),
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$this->comparison(true),
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Convert::raw2sql($this->getValue())
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));
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}
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/**
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* Excludes a match on the starting characters of a field value.
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* Excludes a field if it matches any of the values.
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*
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* @return DataQuery
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*/
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protected function excludeMany(DataQuery $query) {
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$this->model = $query->applyRelation($this->relation);
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$connectives = array();
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foreach($this->getValue() as $value) {
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$connectives[] = sprintf(
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"%s %s '%s%%'",
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$this->getDbName(),
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$this->comparison(true),
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Convert::raw2sql($value)
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);
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}
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$whereClause = implode(' AND ', $connectives);
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return $query->where($whereClause);
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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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