mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
107 lines
3.5 KiB
PHP
107 lines
3.5 KiB
PHP
<?php
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use SilverStripe\ORM\Connect\MySQLSchemaManager;
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use SilverStripe\ORM\DataExtension;
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/**
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* Provides a simple search engine for your site based on the MySQL FULLTEXT index.
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* Adds the {@link FulltextSearchable} extension to data classes,
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* as well as the {@link ContentControllerSearchExtension} to {@link ContentController}
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* (if the 'cms' module is available as well).
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* (this means you can use $SearchForm in your template without changing your own implementation).
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*
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* CAUTION: Will make all files in your /assets folder searchable by file name
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* unless "File" is excluded from FulltextSearchable::enable().
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*
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* @see http://doc.silverstripe.org/framework/en/tutorials/4-site-search
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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 FulltextSearchable extends DataExtension {
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/**
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* @var String Comma-separated list of database column names
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* that can be searched on. Used for generation of the database index defintions.
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*/
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protected $searchFields;
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/**
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* @var Array List of class names
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*/
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protected static $searchable_classes;
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/**
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* Enable the default configuration of MySQL full-text searching on the given data classes.
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* It can be used to limit the searched classes, but not to add your own classes.
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* For this purpose, please use {@link Object::add_extension()} directly:
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* <code>
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* MyObject::add_extension("FulltextSearchable('MySearchableField,MyOtherField')");
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* </code>
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*
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* Caution: This is a wrapper method that should only be used in _config.php,
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* and only be called once in your code.
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*
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* @param Array $searchableClasses The extension will be applied to all DataObject subclasses
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* listed here. Default: {@link SiteTree} and {@link File}.
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*/
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public static function enable($searchableClasses = array('SiteTree', 'File')) {
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$defaultColumns = array(
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'SiteTree' => '"Title","MenuTitle","Content","MetaDescription"',
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'File' => '"Name","Title"'
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);
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if(!is_array($searchableClasses)) $searchableClasses = array($searchableClasses);
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foreach($searchableClasses as $class) {
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if(!class_exists($class)) continue;
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if(isset($defaultColumns[$class])) {
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Config::inst()->update(
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$class, 'create_table_options', array(MySQLSchemaManager::ID => 'ENGINE=MyISAM')
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);
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$class::add_extension("FulltextSearchable('{$defaultColumns[$class]}')");
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} else {
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throw new Exception(
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"FulltextSearchable::enable() I don't know the default search columns for class '$class'"
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);
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}
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}
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self::$searchable_classes = $searchableClasses;
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if(class_exists("ContentController")){
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ContentController::add_extension("ContentControllerSearchExtension");
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}
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}
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/**
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* @param Array|String $searchFields Comma-separated list (or array) of database column names
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* that can be searched on. Used for generation of the database index defintions.
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*/
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public function __construct($searchFields = array()) {
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if(is_array($searchFields)) $this->searchFields = '"'.implode('","', $searchFields).'"';
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else $this->searchFields = $searchFields;
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parent::__construct();
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}
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public static function get_extra_config($class, $extensionClass, $args) {
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return array(
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'indexes' => array(
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'SearchFields' => array(
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'type' => 'fulltext',
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'name' => 'SearchFields',
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'value' => $args[0]
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)
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)
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);
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}
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/**
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* Shows all classes that had the {@link FulltextSearchable} extension applied through {@link enable()}.
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*
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* @return Array
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*/
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public static function get_searchable_classes() {
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return self::$searchable_classes;
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}
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}
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