Ruby-on-rails – Listing ‘rake routes’ for a mountable Rails 3.1 engine

rails-enginesrails-routingroutesruby-on-railsruby-on-rails-3.1

I'm working on a mountable engine for use with Rails 3.1, and I want to list the engine's routes.

I created the engine using:

$ rails plugin new rails_blog_engine --mountable

And edited the 'test/dummy/config/routes' file to read:

Rails.application.routes.draw do
  mount RailsBlogEngine::Engine => "/blog"
end

…and 'config/routes' to read:

RailsBlogEngine::Engine.routes.draw do
  resources :posts
end

I want to list the routes generated for ':posts', but it's not clear how I can do this. When I run 'rake app:routes', I get only the "/blog" route:

$ rake app:routes
rails_blog_engine    /blog    {:to=>RailsBlogEngine::Engine}

When I run 'rake routes', I get an error:

$ rake routes
rake aborted!
Don't know how to build task 'routes'

How can I see the routes for ':posts'? Can I do this without rewriting the relevant rake tasks?

Best Answer

In case people are missing it in the comments, as of Rails 3.2.2, you can now use

$ rake app:routes

Related Solutions

Ruby-on-rails – Testing Rails 3.1 mountable engine with Rspec

I am using RSpec with a Rails engine without issues.

I created my plugin using the following switches: -T --full --dummy-path=spec/dummy.

-T excludes test/unit
--full indicates that the plugin is an engine
--dummy-path is simply so that we don't get a test directory (the default is test/dummy).

From there I used the spec_helper from the "start your engines" article:

# Configure Rails Envinronment
ENV["RAILS_ENV"] = "test"
require File.expand_path("../dummy/config/environment.rb",  __FILE__)

require 'rspec/rails'

ENGINE_RAILS_ROOT=File.join(File.dirname(__FILE__), '../')

# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[File.join(ENGINE_RAILS_ROOT, "spec/support/**/*.rb")].each {|f| require f }

RSpec.configure do |config|
  config.use_transactional_fixtures = true
end

For the generators. I add a config.generators block to my engine.rb file like so:

module MyEngine
  class Engine < Rails::Engine
    config.generators do |g|
      g.test_framework :rspec, :view_specs => false
    end
  end
end

With that, I'm able to get rspec tests when running a generator like the model generator.

As for the DB, is your database.yml file set up correctly? Did you load the test environment, e.g. rake db:test:clone or rake db:migrate RAILS_ENV=test? My guess is that RSpec can't see your tables because there isn't a test database set up.

Ruby-on-rails – How to test routes in a Rails 3.1 mountable engine

Since RSpec 2.14 you can use the following:

describe "test controller routing" do
  routes { Testy::Engine.routes }
  # ...
end

Source: https://github.com/rspec/rspec-rails/pull/668

Best Answer

Related Solutions

Ruby-on-rails – Testing Rails 3.1 mountable engine with Rspec

Ruby-on-rails – How to test routes in a Rails 3.1 mountable engine

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