lib/perus/server/models/group.rb in perus-0.1.2 vs lib/perus/server/models/group.rb in perus-0.1.3

@@ -6,7 +6,19 @@
         def validate
             super
             validates_presence  :name
             validates_unique    :name
         end
+
+        def after_destroy
+            super
+
+            # rather than deleting all systems in a group, each system in the
+            # group is just removed from the group instead. this is better than
+            # accidentally removing a group and all related system data.
+            systems.each do |system|
+                system.group_id = nil
+                system.save
+            end
+        end
     end
 end