Declare api node ways as nested resources

app/abilities/api_ability.rb

@@ -15,8 +15,7 @@ class ApiAbility
       can [:read, :download], Changeset
       can :read, Tracepoint
       can :read, User
-      can :read, Node
-      can [:read, :ways_for_node], Way
+      can :read, [Node, Way]
       can [:read, :relations_for_node, :relations_for_way, :relations_for_relation], Relation
       can [:history, :read], [OldNode, OldWay, OldRelation]
       can :read, UserBlock

app/controllers/api/nodes/ways_controller.rb

@@ -0,0 +1,25 @@
+module Api
+  module Nodes
+    class WaysController < ApiController
+      authorize_resource
+
+      before_action :set_request_formats
+
+      ##
+      # returns all the ways which are currently using the node given in the
+      # :node_id parameter. note that this used to return deleted ways as well, but
+      # this seemed not to be the expected behaviour, so it was removed.
+      def index
+        way_ids = WayNode.where(:node_id => params[:node_id]).collect { |ws| ws.id[0] }.uniq
+
+        @ways = Way.where(:id => way_ids, :visible => true)
+
+        # Render the result
+        respond_to do |format|
+          format.xml
+          format.json
+        end
+      end
+    end
+  end
+end

app/controllers/api/ways_controller.rb

@@ -80,21 +80,5 @@ module Api
         head :bad_request
       end
     end
-
-    ##
-    # returns all the ways which are currently using the node given in the
-    # :id parameter. note that this used to return deleted ways as well, but
-    # this seemed not to be the expected behaviour, so it was removed.
-    def ways_for_node
-      wayids = WayNode.where(:node_id => params[:id]).collect { |ws| ws.id[0] }.uniq
-
-      @ways = Way.where(:id => wayids, :visible => true)
-
-      # Render the result
-      respond_to do |format|
-        format.xml
-        format.json
-      end
-    end
   end
 end

app/views/api/nodes/ways/index.json.jbuilder

@@ -0,0 +1,5 @@
+json.partial! "api/root_attributes"
+
+json.elements do
+  json.array! @ways, :partial => "api/ways/way", :as => :way
+end

app/views/api/nodes/ways/index.xml.builder

@@ -0,0 +1,5 @@
+xml.instruct!
+
+xml.osm(OSM::API.new.xml_root_attributes) do |osm|
+  osm << (render(:partial => "api/ways/way", :collection => @ways) || "")
+end

app/views/api/ways/ways_for_node.json.jbuilder

@@ -1,5 +0,0 @@
-json.partial! "api/root_attributes"
-
-json.elements do
-  json.array! @ways, :partial => "way", :as => :way
-end

app/views/api/ways/ways_for_node.xml.builder

@@ -1,5 +0,0 @@
-xml.instruct!
-
-xml.osm(OSM::API.new.xml_root_attributes) do |osm|
-  osm << (render(@ways) || "")
-end