fixes unknown hash index errors when working with unique and overlapp…

…ing foreign keys in postgres
cakephp · May 7, 2016 · 9b57973 · 9b57973
1 parent b01ae5c
commit 9b57973
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/src/Database/Schema/Table.php b/src/Database/Schema/Table.php
@@ -603,10 +603,12 @@ public function addConstraint($name, $attrs)
                     $attrs['columns']
                 ));
 
-                $this->_constraints[$name]['references'][1] = array_unique(array_merge(
-                    (array)$this->_constraints[$name]['references'][1],
-                    [$attrs['references'][1]]
-                ));
+                if (isset($this->_constraints[$name]['references'])) {
+                    $this->_constraints[$name]['references'][1] = array_unique(array_merge(
+                        (array)$this->_constraints[$name]['references'][1],
+                        [$attrs['references'][1]]
+                    ));
+                }
                 return $this;
             }
         } else {