diff --git a/app/models/application_model.rb b/app/models/application_model.rb
index 8b8b82018..97743f156 100644
--- a/app/models/application_model.rb
+++ b/app/models/application_model.rb
@@ -89,8 +89,12 @@ returns
     self.class.reflect_on_all_associations.map { |assoc|
       real_key = assoc.name.to_s[0,assoc.name.to_s.length-1] + '_ids'
       if params.has_key?( real_key.to_sym )
+        list_of_items = params[ real_key.to_sym ]
+        if params[ real_key.to_sym ].class != Array
+          list_of_items = [ params[ real_key.to_sym ] ]
+        end
         list = []
-        params[ real_key.to_sym ].each {|item|
+        list_of_items.each {|item|
           list.push( assoc.klass.find(item) )
         }
         self.send( assoc.name.to_s + '=', list )