3 files changed, 77 insertions, 7 deletions

diff --git a/mod/search/index.php b/mod/search/index.php
index e92eee312..bbdad89e6 100644
--- a/mod/search/index.php
+++ b/mod/search/index.php
@@ -22,13 +22,33 @@ $offset = ($search_type == 'all') ? 0 : get_input('offset', 0);
 $entity_type = get_input('entity_type', NULL);
 $entity_subtype = get_input('entity_subtype', NULL);
 $owner_guid = get_input('owner_guid', NULL);
-$friends = (int)get_input('friends', 0);
+$friends = get_input('friends', 0);
+$sort = get_input('sort');
+switch ($sort) {
+	case 'relevance':
+	case 'created':
+	case 'updated':
+	case 'action_on':
+	case 'alpha':
+		break;
+
+	default:
+		$sort = 'relevance';
+		break;
+}
+
+$order = get_input('sort', 'desc');
+if ($order != 'asc' && $order != 'desc') {
+	$order = 'desc';
+}
 
 // set up search params
 $params = array(
 	'query' => $query,
 	'offset' => $offset,
 	'limit' => $limit,
+	'sort' => $sort,
+	'order' => $order,
 	'search_type' => $search_type,
 	'type' => $entity_type,
 	'subtype' => $entity_subtype,
@@ -147,13 +167,13 @@ if ($search_type == 'all' || $search_type == 'entities') {
 				$current_params['subtype'] = $subtype;
 				$current_params['type'] = $type;
 
-				$entities = trigger_plugin_hook('search', "$type:$subtype", $current_params, NULL);
-				if ($entities === FALSE) {
+				$results = trigger_plugin_hook('search', "$type:$subtype", $current_params, NULL);
+				if ($results === FALSE) {
 					// someone is saying not to display these types in searches.
 					continue;
-				} elseif (is_array($entities) && !count($entities)) {
+				} elseif (is_array($results) && !count($results)) {
 					// no results, but results searched in hook.
-				} elseif (!$entities) {
+				} elseif (!$results) {
 					// no results and not hooked.  use default type search.
 					// don't change the params here, since it's really a different subtype.
 					// Will be passed to elgg_get_entities().
diff --git a/mod/search/search_hooks.php b/mod/search/search_hooks.php
index e56056701..b66a17467 100644
--- a/mod/search/search_hooks.php
+++ b/mod/search/search_hooks.php
@@ -28,8 +28,7 @@ function search_objects_hook($hook, $type, $value, $params) {
 
 	$params['wheres'] = array($where);
 
-	//@todo allow sorting by recent time
-	$params['order_by'] = NULL;
+	$params['order_by'] = search_get_order_by_sql('oe', $params['sort'], $params['order']);
 
 	$entities = elgg_get_entities($params);
 	$params['count'] = TRUE;
diff --git a/mod/search/start.php b/mod/search/start.php
index 8e84a4144..4b3268f6e 100644
--- a/mod/search/start.php
+++ b/mod/search/start.php
@@ -424,6 +424,57 @@ function search_get_where_sql($table, $fields, $params, $use_fulltext = TRUE) {
 	return $where;
 }
 
+
+/**
+ * Returns ORDER BY sql for insertion into elgg_get_entities().
+ *
+ * @param str $entities_table Prefix for entities table.
+ * @param str $type_table Prefix for the type table.
+ * @param str $sort ORDER BY part
+ * @param str $order ASC or DESC
+ * @return str
+ */
+function search_get_order_by_sql($entities_table, $type_table, $sort, $order) {
+
+	$on = NULL;
+
+	switch ($sort) {
+		default:
+		case 'relevance':
+			// default is relevance descending.
+			// acending relevancy is silly and complicated.
+			$on = '';
+			break;
+		case 'created':
+			$on = "$entities_table.time_created";
+			break;
+		case 'updated':
+			$on = "$entities_table.time_updated";
+			break;
+		case 'action_on':
+			// @todo not supported yet in core
+			$on = '';
+			break;
+		case 'alpha':
+			// @todo not support yet because both title
+			// and name columns are used for this depending
+			// on the entity, which we don't always know.  >:O
+			break;
+	}
+
+	$order = strtolower($order);
+	if ($order != 'asc' && $order != 'desc') {
+		$order = 'DESC';
+	}
+
+	if ($on) {
+		$order_by = "ORDER BY $table.$column $dir";
+	} else {
+		$order_by = '';
+	}
+
+	return $ob;
+}
 /** Register init system event **/
 
 register_elgg_event_handler('init','system','search_init');
\ No newline at end of file