Adding a couple of extra functions, deleting the old users module

git-svn-id: https://code.elgg.org/elgg/trunk@224 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 23 insertions, 1 deletions

diff --git a/engine/lib/entities.php b/engine/lib/entities.php
index 5fd16461d..cab9afae6 100644
--- a/engine/lib/entities.php
+++ b/engine/lib/entities.php
@@ -555,6 +555,28 @@
 		$guid_two = (int)$guid_two;
 			
 		return insert_data("INSERT into {$CONFIG->dbprefix}entity_relationships (guid_one, relationship, guid_two) values ($guid_one, 'relationship', $guid_two)");
+	}

+	

+	/**

+	 * Determine whether or not a relationship between two entities exists

+	 *

+	 * @param int $guid_one The GUID of the entity "owning" the relationship

+	 * @param string $relationship The type of relationship

+	 * @param int $guid_two The GUID of the entity the relationship is with

+	 * @return true|false

+	 */

+	function check_entity_relationship($guid_one, $relationship, $guid_two)

+	{

+		global $CONFIG;

+		

+		$guid_one = (int)$guid_one;

+		$relationship = sanitise_string($relationship);

+		$guid_two = (int)$guid_two;

+			

+		if ($row = get_data_row("select guid_one from {$CONFIG->dbprefix}entity_relationships where guid_one=$guid_one and relationship='$relationship' and guid_two=$guid_two limit 1")) {

+			return true;

+		}

+		return false;

 	}
 
 	/**
@@ -572,7 +594,7 @@
 		$relationship = sanitise_string($relationship);
 		$guid_two = (int)$guid_two;
 			
-		return insert_data("DELETE from {$CONFIG->dbprefix}entity_relationships where guid_one=$guid_one and relationship='$relationship' and guid_two=$guid_two");
+		return delete_data("DELETE from {$CONFIG->dbprefix}entity_relationships where guid_one=$guid_one and relationship='$relationship' and guid_two=$guid_two");
 	}