Move default_format_xml to api_controller

app/controllers/api/map_controller.rb

@@ -7,11 +7,6 @@ module Api
 
     before_action :default_format_xml
 
-    # Set format to xml unless client requires a specific format
-    def default_format_xml
-      request.format = "xml" unless params[:format]
-    end
-
     # This is probably the most common call of all. It is used for getting the
     # OSM data for a specified bounding box, usually for editing. First the
     # bounding box (bbox) is checked to make sure that it is sane. All nodes

app/controllers/api/nodes_controller.rb

@@ -15,11 +15,6 @@ module Api
 
     before_action :default_format_xml
 
-    # Set format to xml unless client requires a specific format
-    def default_format_xml
-      request.format = "xml" unless params[:format]
-    end
-
     # Create a node from XML.
     def create
       assert_method :put

app/controllers/api/old_controller.rb

@@ -18,11 +18,6 @@ module Api
 
     before_action :default_format_xml
 
-    # Set format to xml unless client requires a specific format
-    def default_format_xml
-      request.format = "xml" unless params[:format]
-    end
-
     def history
       # the .where() method used in the lookup_old_element_versions
       # call won't throw an error if no records are found, so we have

app/controllers/api/relations_controller.rb

@@ -13,11 +13,6 @@ module Api
 
     before_action :default_format_xml
 
-    # Set format to xml unless client requires a specific format
-    def default_format_xml
-      request.format = "xml" unless params[:format]
-    end
-
     def create
       assert_method :put
 

app/controllers/api/ways_controller.rb

@@ -13,11 +13,6 @@ module Api
 
     before_action :default_format_xml
 
-    # Set format to xml unless client requires a specific format
-    def default_format_xml
-      request.format = "xml" unless params[:format]
-    end
-
     def create
       assert_method :put
 

app/controllers/api_controller.rb

@@ -3,6 +3,11 @@ class ApiController < ApplicationController
 
   private
 
+  # Set format to xml unless client requires a specific format
+  def default_format_xml
+    request.format = "xml" unless params[:format]
+  end
+
   def authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
     # make the current_user object from any auth sources we have
     setup_user_auth