diff options
Diffstat (limited to 'engine/lib/relationships.php')
| -rw-r--r-- | engine/lib/relationships.php | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/engine/lib/relationships.php b/engine/lib/relationships.php index f50c4a485..09d541e22 100644 --- a/engine/lib/relationships.php +++ b/engine/lib/relationships.php @@ -239,6 +239,15 @@ function get_entity_relationships($guid, $inverse_relationship = FALSE) { * Also accepts all options available to elgg_get_entities() and * elgg_get_entities_from_metadata(). * + * To ask for entities that do not have a particulat relationship to an entity, + * use a custom where clause like the following: + * + * $options['wheres'][] = "NOT EXISTS ( + * SELECT 1 FROM {$db_prefix}entity_relationships + * WHERE guid_one = e.guid + * AND relationship = '$relationship' + * )"; + * * @see elgg_get_entities * @see elgg_get_entities_from_metadata * |