ruby on rails - How to vary the title of a page when using layouts and partials -


following tutorial (https://www.railstutorial.org/book/rails_flavored_ruby), wish vary title of layout based on controller.

i have page in 4 sections can change @ will. working excpet having hard time changing title.

here layout:

<html> <head>      <%= stylesheet_link_tag "erp" %>      <title><%= yield(:title) %></title>  </head> <body>      <%= render 'header' %>     <%= render "sidebar" %>     <%= render "content" %>     <%= render "footer" %>  </body> </html>

i tried add title in controller did not work:

class viewercontroller < applicationcontroller     def index          provide(:title, "viewer")     end     def update     end  end

i error "undefined method `provide' #". have more apps use same layout, changing sections need to. change title based on app.

anyone know how can use provide function in controller?

i believe you're looking in controller not provide but: 

content_for :title, 'viewer'

api docs content_for v. provide


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