Fixes #42: Object full text search on description

git-svn-id: https://code.elgg.org/elgg/trunk@969 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 44 insertions, 0 deletions

diff --git a/engine/lib/objects.php b/engine/lib/objects.php
index 7c14e8cee..efe7f6dec 100644
--- a/engine/lib/objects.php
+++ b/engine/lib/objects.php
@@ -289,6 +289,50 @@
 		}

 

 		return false;

+	}
+	
+	/**
+	 * Searches for an object based on a complete or partial title or description using full text searching.
+	 * 
+	 * IMPORTANT NOTE: With MySQL's default setup:
+	 * 1) $criteria must be 4 or more characters long
+	 * 2) If $criteria matches greater than 50% of results NO RESULTS ARE RETURNED!
+	 *
+	 * @param string $criteria The partial or full name or username.
+	 * @param int $limit Limit of the search.
+	 * @param int $offset Offset.
+	 * @param string $order_by The order.
+	 * @param boolean $count Whether to return the count of results or just the results. 
+	 */
+	function search_for_object($criteria, $limit = 10, $offset = 0, $order_by = "", $count = false)
+	{
+		global $CONFIG;
+		
+		$criteria = sanitise_string($criteria);
+		$limit = (int)$limit;
+		$offset = (int)$offset;
+		$order_by = sanitise_string($order_by);
+		
+		$access = get_access_sql_suffix("e");
+		
+		if ($order_by == "") $order_by = "e.time_created desc";
+		
+		if ($count) {
+			$query = "SELECT count(e.guid) as total ";
+		} else {
+			$query = "SELECT e.* "; 
+		}
+		$query .= "from {$CONFIG->dbprefix}entities e join {$CONFIG->dbprefix}objects_entity o on e.guid=o.guid where match(o.title,o.description) against ('$criteria') and $access";
+		
+		if (!$count) {
+			$query .= " order by $order_by limit $offset, $limit"; // Add order and limit
+			return get_data($query, "entity_row_to_elggstar");
+		} else {
+			if ($count = get_data_row($query)) {
+				return $count->total;
+			}
+		}
+		return false;
 	}

 

 	/**