diff options
Diffstat (limited to 'engine/lib/entities.php')
| -rw-r--r-- | engine/lib/entities.php | 24 |
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"); } |