Ruby on Rails Tutorial => Views and Layouts

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Example

When a controller action is rendered, Rails will attempt to find a matching layout and view based on the name of the controller.

Views and layouts are placed in the app/views directory.

Given a request to the PeopleController#index action, Rails will search for:

the layout called people in app/views/layouts/ (or application if no match is found)
a view called index.html.erb in app/views/people/ by default
if you wish to render other file called index_new.html.erb you have to write code for that in PeopleController#index action like render 'index_new'
we can set different layouts for every action by writing render 'index_new', layout: 'your_layout_name'

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