$joins was not declared in elgg_get_river()

diff --git a/engine/lib/river.php b/engine/lib/river.php
index 1a2be1e5067dd0f66362a4553ea9b5a0f6c6a49f..143ff035f070988c799197c11ffdc36f8044d247 100644 (file)
--- a/engine/lib/river.php
+++ b/engine/lib/river.php
@@ -185,6 +185,9 @@ function elgg_delete_river(array $options = array()) {
 
        $query = "DELETE rv.* FROM {$CONFIG->dbprefix}river rv ";
 
+       // remove identical join clauses
+       $joins = array_unique($options['joins']);
+       
        // add joins
        foreach ($joins as $j) {
                $query .= " $j ";