Rails routes, url and subdomains

Question

My ruby app is divided in different namespaces. like: free(free.domain.com), pro(pro.domain.com), vip(vip.domain.com) In the routes file looks like this: ``` namespace :free do match 'home' => 'free#home', :via => [:get, :post], :as => :home #more routes end namespace :pro do match 'home' => 'pro#home', :via => [:get, :post], :as => :home #more routes end namespace :vip do match 'home' => 'vip#home', :via => [:get, :post], :as => :home #more routes end match '/about' => 'pages#about' match '/team' => 'pages#team' match '/press' => 'pages#press' #more routes ``` I would like that wherever I am in the app when there is a link like pro_home_path, the url be pro.domain.com/home. So basically, is it possible in the routes file to add a subdomain(something like this `namespace :vip, :subdomain => vip do`) to append the subdomain to the corresponding namespace? EDIT: So I have added a `constraint constraints(:subdomain => "newsfeed") do` But the link when I do pro_home_path, I'm getting lvh.…

Accepted Answer

Yes, you can specify a subdomain as a constraint, e.g.

```
get 'photos', constraints: {subdomain: 'admin'}
```

Check out the rails guide on the subject: http://guides.rubyonrails.org/routing.html#request-based-constraints

To link to a specific subdomain, you can specify it in a URL route helper. For example, `home_url(subdomain: 'pro')` might redirect to `http://pro.example.com/home`. Take care to use the `_url` suffixed methods as `home_path` will not redirect to a specific subdomain.

Rails routes, url and subdomains

Solution

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