How to write right route with Rails about the dot character in the url?

Question

In my config/routes.rb file, I created a nested resource as follows:

resources :tags, only: [] do
  resources :blogs, only: [:index]
end

The problem is, if I create a tag named node.js, when I access the page by:

http://0.0.0.0:3000/tags/node.js/blogs

I get a routing error:

No route matches [GET] "/tags/node.js/blogs"

How do I get routing to work properly for resources with a dot in the name?

Could you rune `bin/rake routes` and find if the route exists, something like `tags/:id/blogs` — Mohammad AbuShady, Dec 25 '14 at 05:13

Rob Wise · Answer 1 · 2014-12-26T18:30:49.457

2

From Rails Routing from the Outside In, section 3.2:

By default, dynamic segments don't accept dots - this is because the dot is used as a separator for formatted routes. If you need to use a dot within a dynamic segment, add a constraint that overrides this – for example, id: /[^/]+/ allows anything except a slash.

Therefore, make your route like this:

resources :tags, only: [], id: /[^\/]+/ do
  resources :blogs, only: [:index], id: /[^\/]+/ 
end

edited Dec 26 '14 at 18:30

answered Dec 25 '14 at 08:24

Rob Wise

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Thank you. But should add `id: /[^\/]+/ ` after `tags` – j-zhang Dec 25 '14 at 08:37

score 1 · Accepted Answer · edited May 23 '17 at 12:06

1

Take a look at this post https://stackoverflow.com/a/5369702

The dot (.) Is normally use to separate

That would for example be:

get "/:user/contributions" => 'users#contributions', :constraints => { :user => /[^\/]+/ }

edited May 23 '17 at 12:06

Community

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answered Dec 25 '14 at 08:12

MZaragoza

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How to write right route with Rails about the dot character in the url?

2 Answers2