search for: shipped_from

I have a Shipment class that is used to ship packages between Branches. However, when I try to have two belongs_to in Shipment called shipped_to and shipped_from I can''t seem to make it work. I can get it to display the form properly but when I select the branches and click save I get the following error... "Branch expected, got String" Any ideas? I have added some code snipplets below for reference. Thanks! shipment.rb: -----------...