1 files changed, 57 insertions, 0 deletions
diff --git a/includes/search/SearchDatabase.php b/includes/search/SearchDatabase.php
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+<?php
+/**
+ * Database search engine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Search
+ */
+
+/**
+ * Base search engine base class for database-backed searches
+ * @ingroup Search
+ * @since 1.23
+ */
+class SearchDatabase extends SearchEngine {
+	/**
+	 * @var DatabaseBase Slave database for reading from for results
+	 */
+	protected $db;
+
+	/**
+	 * Constructor
+	 * @param DatabaseBase $db The database to search from
+	 */
+	public function __construct( DatabaseBase $db = null ) {
+		if ( $db ) {
+			$this->db = $db;
+		} else {
+			$this->db = wfGetDB( DB_SLAVE );
+		}
+	}
+
+	/**
+	 * Return a 'cleaned up' search string
+	 *
+	 * @param string $text
+	 * @return string
+	 */
+	protected function filter( $text ) {
+		$lc = $this->legalSearchChars();
+		return trim( preg_replace( "/[^{$lc}]/", " ", $text ) );
+	}
+}