Hi,
We have a RESTful server application which exposes the following routes using the following rules, but when trying to consume those resources from a client application the routes are not generated correctly. And we are not sure how to get around that.
The routes.rb specifies the following resources:
ActionController::Routing::Routes.draw do |map| map.resources :users do |user| user.resource :blog end
map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' end
Generated routes (only a subset):
POST /users/:user_id/blog {:controller=>"blogs", :action=>"create"} POST /users/:user_id/blog.:format {:controller=>"blogs", :action=>"create"} new_user_blog GET /users/:user_id/blog/new {:controller=>"blogs", :action=>"new"} formatted_new_user_blog GET /users/:user_id/blog/new.:format {:controller=>"blogs", :action=>"new"} edit_user_blog GET /users/:user_id/blog/edit {:controller=>"blogs", :action=>"edit"} formatted_edit_user_blog GET /users/:user_id/blog/edit.:format {:controller=>"blogs", :action=>"edit"} user_blog GET /users/:user_id/blog {:controller=>"blogs", :action=>"show"} formatted_user_blog GET /users/:user_id/blog.:format {:controller=>"blogs", :action=>"show"} PUT /users/:user_id/blog {:controller=>"blogs", :action=>"update"} PUT /users/:user_id/blog.:format {:controller=>"blogs", :action=>"update"} DELETE /users/:user_id/blog {:controller=>"blogs", :action=>"destroy"} DELETE /users/:user_id/blog.:format {:controller=>"blogs", :action=>"destroy"}
The routes are exactly as we would like them. i.e. per user there is only one blog.
The problem starts when trying to consume these resources using active resource from a client application (ie another rails app to consume the REST api resources). Here is a description of the models:
class User < ActiveResource::Base self.site = "http://localhost:3000/" end
class Blog < ActiveResource::Base self.site = "http://localhost:3001/users/:user_id/" end
CRUD operations for the User model work fine. No problem there. But on inspection of the collection and element paths for the Blog model the following urls are generated:
Blog.collection_path(:user_id => 1) => "/users/1/blogs.xml"
Blog.element_path(1, :user_id => 1) => "/users/1/blogs/1.xml"
On trying to create a blog for a specific user:
b = Blog.new(:params => {:user_id => 1})
b.save
ActiveResource::ResourceNotFound: Failed with 404 Not Found
the client application gets a 404 because the generated url is incorrect and the REST API application throws an ActionController::UnknownAction exception because the generated route is routed to the wrong controller and action, in this case:
/users/1/blogs.xml
gets routed to the users controller and tries to execute the 1 action. So, this cannot work, since the REST api cannot resolve these urls to routes since we have specified a singular resource i.e. "blog".
Can anyone help us with specifying how the consuming active resource models generate the correct urls for a singular nested resource? As we don't want to change the api specification as it is proper and concise.
Thanks in advance for your time.