mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-09-08 02:31:35 +02:00
84 lines
2.2 KiB
PHP
Executable File
84 lines
2.2 KiB
PHP
Executable File
<?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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* Filters by full-text matching on the given field.
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*
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* Full-text indexes are only available with MyISAM tables. The following column types are
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* supported:
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* - Char
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* - Varchar
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* - Text
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*
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* To enable full-text matching on fields, you also need to add an index to the
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* database table, using the {$indexes} hash in your DataObject subclass:
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*
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* <code>
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* private static $indexes = array(
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* 'SearchFields' => 'fulltext(Name, Title, Description)'
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* );
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* </code>
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*
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* @todo Add support for databases besides MySQL
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*/
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class FulltextFilter extends SearchFilter {
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protected function applyOne(DataQuery $query) {
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$this->model = $query->applyRelation($this->relation);
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return $query->where(sprintf(
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"MATCH (%s) AGAINST ('%s')",
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$this->getDbName(),
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Convert::raw2sql($this->getValue())
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));
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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 $query->where(sprintf(
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"NOT MATCH (%s) AGAINST ('%s')",
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$this->getDbName(),
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Convert::raw2sql($this->getValue())
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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 || $this->getValue() === '';
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}
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/**
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* This implementation allows for a list of columns to be passed into MATCH() instead of just one.
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*
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* @example
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* <code>
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* MyDataObject::get()->filter('SearchFields:fulltext', 'search term')
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* </code>
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*
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* @return string
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*/
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public function getDbName() {
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$indexes = Config::inst()->get($this->model, "indexes");
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if(is_array($indexes) && array_key_exists($this->getName(), $indexes)) {
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$index = $indexes[$this->getName()];
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if(is_array($index) && array_key_exists("value", $index)) {
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return $index['value'];
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} else {
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// Parse a fulltext string (eg. fulltext ("ColumnA", "ColumnB")) to figure out which columns
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// we need to search.
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if(preg_match('/^fulltext\s+\((.+)\)$/i', $index, $matches)) {
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return $matches[1];
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} else {
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throw new Exception("Invalid fulltext index format for '" . $this->getName()
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. "' on '" . $this->model . "'");
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}
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}
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}
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return parent::getDbName();
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}
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}
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