Marcus Povey <marcus@dushka.co.uk>

* Added metadata/metastrings tag stuff. Lorks.

git-svn-id: https://code.elgg.org/elgg/trunk@151 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 34 insertions, 0 deletions

diff --git a/engine/lib/metastrings.php b/engine/lib/metastrings.php
new file mode 100644
index 000000000..17c9a751b
--- /dev/null
+++ b/engine/lib/metastrings.php
@@ -0,0 +1,34 @@
+<?php
+	/**
+	 * Elgg metastrngs
+	 * Functions to manage object metastrings.
+	 * 
+	 * @package Elgg
+	 * @subpackage Core
+	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+	 * @author Marcus Povey <marcus@dushka.co.uk>
+	 * @copyright Curverider Ltd 2008
+	 * @link http://elgg.org/
+	 */
+
+
+	/**
+	 * Add a metastring.
+	 * It returns the id of the tag, whether by creating it or updating it.
+	 * 
+	 * @param string $tag The value (whatever that is) to be stored
+	 * @return mixed Integer tag or false.
+	 */
+	function add_metastring($tag)
+	{
+		global $CONFIG;
+		
+		$tag = sanitise_string($tag);
+		
+		$row = get_data_row("SELECT * from {$CONFIG->dbprefix}metastrings where tag='$tag' limit 1");
+		if ($row)
+			return $row->id;
+		
+		return insert_data("INSERT into {$CONFIG->dbprefix}metastrings (tag) values ('$tag')");
+	}
+?>
\ No newline at end of file