CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3routes
goddamnyouryan
goddamnyouryan

Reputation: 6896

rails 3 dynamic routes

An application I am working on in Rails 3 has a City model. Each City has a "name" column. I want this City.name to be the base url.

For example, with the City Name "Los Angeles": http://myapp.com/los-angeles.

If I use 

match '/:name' => "cities#show"
resources :cities

I can get http://myapp.com/Los%20Angeles, but I need it to be 'los-angeles'. I assume I need to change the to_params in the city.rb file.

Additionally, what should my link_to look like when this is working? Right now I am trying 

 <%= link_to "View", city_path(:name => @city.name) %>

And that is giving me this error:

No route matches {:action=>"destroy", :name=>"Los Angeles", :controller=>"cities"}

Finally, you should note that I plan on nesting resources underneath the City in the routes so that I end up with urls like http://myapp.com/los-angeles/messages/message-content-using-to-param

etc..

Any advice you could give would be greatly appreciated!

Upvotes: 0

Views: 1343

Answers (2)

ghoppe
ghoppe

Reputation: 21784

The method described here would be one approach. Overriding to_param is also described in the Rails docs.

Add this to your City model.

def to_param
    "#{self.name_for_url}" 
end

def name_for_url
    self.name.gsub(/^A-Z0-9\-_/i,'')
end

This will cause city_path(@city) to provide /cities/los-angeles

If you want City to be your root controller, in routes.rb:

map.root :controller => 'city'

Now, http://myapp.com/los-angeles should work.

Upvotes: 1

Mike Lewis
Mike Lewis

Reputation: 64137

I personally use Friendly Id to handle pretty URLs with hooks into ActiveRecord(really nice by the way). This gem has nested resource support as well.

Upvotes: 1

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