Rails 3 View

Helpers are intended to generate complicated markup for use in the associated views.

Layouts

• The default layout for the entire application is app/views/layouts/application.html.erb.
• If controller-specific layouts are found, they are used instead.
• You can use the layout directive at the class level in any controller (that is, not inside an action) to set the layout for the entire controller:

layout 'my_layout'

• You can include a layout for a specific action with an explicit call to render inside the action:

render :layout => 'my_layout'

• Sometimes, you want to render an action without a layout. In that case, you can pass false in place of the layout name:

render :layout => false