CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-5
Chiara Ani
Chiara Ani

Reputation: 1083

How can I make my custom url helpers in rails?

I'd like this custom url helper to be accessible from controllers, views, tests... Ending with both _url and _path. Also it should have the possibility to add parameters at the end as a url helper.

def reviews(reviewable)
  "/reviews/#{reviewable.class}/#{reviewable.id}"
end
reviews_url Book.find(1) # /reviews/Book/1
reviews_path Film.find(3) # /reviews/Film/3

Review.reviewable is polymorphic.

config/routes

get "reviews/:reviewable_type/:reviewable_id" => "reviews#index"

Upvotes: 1

Views: 1618

Answers (2)

Chiara Ani
Chiara Ani

Reputation: 1083

Even though my question has been answered a long time ago, I want to add another answer according to the title of the question. So if you actually want to create custom url and path helpers, here's the answer with an example: Generating a full resourceful path giving only the last resource to the routes helper

Rails docs: https://api.rubyonrails.org/classes/ActionDispatch/Routing/Mapper/CustomUrls.html#method-i-direct

Upvotes: 0

max
max

Reputation: 101811

I would just define the routes as:

resources :books do
  resources :reviews, only: [:new, :create, :index]
end

resources :films do
  resources :reviews, only: [:new, :create, :index]
end

This will create the routes as:

books/:book_id/reviews
films/:film_id/reviews

This is the conventional RESTful way to define nested resources. And more importantly it works with the Rails polymorphic route helpers.

You can use routing concerns to DRY it if needed.

concern :reviewable do
  resources :reviews, only: [:new, :create, :index]
end

resources :books, concerns: :reviewable
resources :films, concerns: :reviewable

It gives you the named route helpers book_reviews_path(@book) and film_reviews_path(@film). You can also use the polymorphic route helpers:

<%= link_to "Reviews for #{@reviewable.title}" [@reviewable, :reviews] %>
...
<%= form_for([@reviewable, @reviewable.review.new]) do %>
...
redirect_to [@reviewable, :reviews], notice: 'Review created'

Upvotes: 4

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