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The document discusses implementing a title helper method in Ruby on Rails to dynamically set document titles. It shows how to define a PagesController with title variables for different actions. It then demonstrates rendering the title variable in views and customizing the title output with options like separators, prefixes, and case. Finally, it shows aliasing the title helper method to the shorthand "t".
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Headliner
- 1. Patrick Crowley the.railsi.st
- 2. Headliner <%= title :site => quot;My websitequot; %>
- 3. class PagesController < ApplicationController def about @title = quot;About usquot; end end
- 4. class PagesController < ApplicationController def about @title = quot;About usquot; end end <head> <title> Foo.com<% if @title %>: <%= @title %><% end %> </title> </head>
- 5. class PagesController < ApplicationController def about @title = quot;About usquot; end end <head> <title> Foo.com<% if @title %>: <%= @title %><% end %> </title> </head> <head> <title> Foo.com: About us </title> </head>
- 6. class PagesController < ApplicationController def about @title = quot;About usquot; end def contact @title = quot;Contact usquot; end def faq @title = quot;Frequently asked questionsquot; end def press @title = quot;Press centerquot; end end
- 7. class PagesController < ApplicationController def about @title = quot;About usquot; end def contact @title = quot;Contact usquot; BAD end def faq @title = quot;Frequently asked questionsquot; end def press @title = quot;Press centerquot; end end
- 8. Let’s DRY it up!
- 9. <head> <title> Foo.com<% if @title %>: <%= @title %><% end %> </title> </head> layout
- 10. <head> <%= title :site => quot;Foo.comquot; %> </head> layout
- 11. <h1>About us</h1> <p>This company sucks.</p> view
- 12. <h1><%= title quot;About usquot; %></h1> <p>This company sucks.</p> view
- 13. <html> <head> <title> Foo.com: About us </title> </head> <body> <h1>About us</h1> </body> </html> rendered page
- 15. <%= title :separator => quot;—quot; %> quot;Foo.com — About usquot; <%= title :prefix => false, :separator => quot;:quot; %> quot;Foo.com: About usquot; <%= title :lowercase => true %> quot;foo.com : about usquot; <%= title :reverse => true, :prefix => quot;.:.quot; %> quot;About us .:. Foo.comquot;
- 16. Use the “t” alias
- 17. <html> <head> <%= title :site => quot;Foo.comquot; %> </head> <body> <h1><%= title quot;About usquot;></h1> </body> </html>
- 18. <html> <head> <%= t :site => quot;Foo.comquot; %> </head> <body> <h1><%= t quot;About usquot;></h1> </body> </html>
- 19. Use my method, fool!
- 21. The End