Allow identifier lookup for scope based find_record implementation

lib/dunlop/ember/api_base_controller.rb

@@ -144,7 +144,11 @@ module Dunlop::Ember::ApiBaseController
   def find_record(options = {})
     scope = record_scope
     scope = scope.includes(*Array.wrap(options[:includes])) if options[:includes]
-    @record = scope.find(params[:id])
+    if record_class.include?(HasUuidIdentifier) and HasUuidIdentifier::UUID_MATCH =~ params[:id].to_s
+      @record = scope.find_by(identifier: params[:id]) or raise ActiveRecord::RecordNotFound # I (Benjamin) don't agree with this (raising) behaviour, but this is the rails standard for raising and rescue
+    else
+      @record = scope.find(params[:id])
+    end
   end
 
   def record_params