How to change layouts based on every action in Rails

How to change layouts based on every action in Rails.

We have more than one layouts for individual action and need to change this based on action or page, how to do that.

Very easy, first you can create layouts in layouts folder as like

about_layout.html.erb
home_layout.html.erb
contact_layout.html.erb
product_layout.html.erb

now in the controller

class PagesController < ApplicationController
   layout :determine_layout

   def home

   end

   def product

   end

   def about

   end

   def contact 

   end

   private
   def determine_layout
      case action_name
      when "home"
        "home_layout"
      when "product"
        "product_layout"
      when "about" #=> or you can use a comma for the same layout in 2 or 3 actions like when "home","contact"
        "about_layout"
      when "contact"
        "contact_layout"
      end
   end
end

class PagesController < ApplicationController

layout :determine_layout

def home

end

def product

end

def about

end

def contact

end

private

def determine_layout

case action_name

when "home"

"home_layout"

when "product"

"product_layout"

when "about" #=> or you can use a comma for the same layout in 2 or 3 actions like when "home","contact"

"about_layout"

when "contact"

"contact_layout"

end

This called action base layout.

How to change layouts based on every action in Rails

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