Module ActionDispatch::Routing::Mapper::Base
In: lib/action_dispatch/routing/mapper.rb

Methods

Public Instance methods

default_url_options(options)

Alias for default_url_options=

When you set up a regular route, you supply a series of symbols that Rails maps to parts of an incoming HTTP request.

  match ':controller/:action/:id/:user_id'

Two of these symbols are special: :controller maps to the name of a controller in your application, and :action maps to the name of an action within that controller. Anything other than :controller or :action will be available to the action as part of params.

Mount a Rack-based application to be used within the application.

  mount SomeRackApp, :at => "some_route"

Alternatively:

  mount(SomeRackApp => "some_route")

All mounted applications come with routing helpers to access them. These are named after the class specified, so for the above example the helper is either some_rack_app_path or some_rack_app_url. To customize this helper‘s name, use the +:as+ option:

  mount(SomeRackApp => "some_route", :as => "exciting")

This will generate the exciting_path and exciting_url helpers which can be used to navigate to this mounted app.

You can specify what Rails should route "/" to with the root method:

  root :to => 'pages#main'

For options, see the match method‘s documentation, as root uses it internally.

You should put the root route at the top of config/routes.rb, because this means it will be matched first. As this is the most popular route of most Rails applications, this is beneficial.

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