CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3rails-routing
Petr Šuška
Petr Šuška

Reputation: 275

Rails 3 - new controller action route

I have an app with online trainings and every online training has several chapters. I don't want to create next controller just for training chapters. I want to have new action in TrainingsController which might be called chapter. Then I want URL like this:

/trainings/1/chapter/3

(/controller/id of training/action/id of chapter)

Could you please help me how can I set routes.rb to achieve this behaviour? I tried lot of things, but it's still broken.

Thank you in advance!

Petr

Upvotes: 1

Views: 51

Answers (2)

Raghvendra Parashar
Raghvendra Parashar

Reputation: 4053

I think here is what you are looking for:

match '/trainings/:training_id/chapter/:chapter_id' => 'trainings#chapter', :as => 'chapter_training'

app/controllers/trainings_controller.rb

def chapter
end

Upvotes: 1

vee
vee

Reputation: 38645

You could define the route as: 

resources :trainings do 
  get 'chapter/:chapter_id', action: :chapter, as: :training_chapter, constraints: { chapter_id: /\d+/ }
end

Then in your trainings_controller.rb: 

def chapter
  # params[:chapter_id]
  ...
end

The line get 'chapter/:chapter_id', action: :chapter, as: training_chapter, constraints: { chapter_id: /\d+/ }, defines a get route of format training/:id/chapter/:chapter_id which executes the chapter action in TrainingController.

The name of this route is training_chapter defined by as: :training_chapter, so you can use the named route helpers such as training_chapter_trainings_path.

The final option constraints: /\d+/ is restricting the values that chapter_id can hold, based on which this route gets executed. So, a get request to /trainings/1/chapter/1 executes the chapter action, whereas /trainings/1/chapter/a does not because the value a for chapter_id is non-digit.

Upvotes: 3

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