aboutsummaryrefslogtreecommitdiff
path: root/engine/lib/relationships.php
diff options
context:
space:
mode:
Diffstat (limited to 'engine/lib/relationships.php')
-rw-r--r--engine/lib/relationships.php11
1 files changed, 10 insertions, 1 deletions
diff --git a/engine/lib/relationships.php b/engine/lib/relationships.php
index f50c4a485..01654b1ce 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 = '$relationship'
+ * )";
+ *
* @see elgg_get_entities
* @see elgg_get_entities_from_metadata
*
@@ -407,7 +416,7 @@ function elgg_list_entities_from_relationship_count($options) {
function elgg_register_relationship_url_handler($relationship_type, $function_name) {
global $CONFIG;
- if (!is_callable($function_name)) {
+ if (!is_callable($function_name, true)) {
return false;
}