Set providertype before save (#334)

app/admin/organisations.rb

@@ -17,7 +17,7 @@ ActiveAdmin.register Organisation do
     selectable_column
     id_column
     column :name
-    column "Org type", :providertype
+    column "Org type", :provider_type
     column "Address Line 1", :address_line1
     column "Address Line 2", :address_line2
     column :postcode
@@ -28,4 +28,8 @@ ActiveAdmin.register Organisation do
     column :managing_agents
     actions
   end
+
+  before_save do |org|
+    org.provider_type = params[:organisation][:provider_type]
+  end
 end