Rails: Modifying <head> to include various metas and title tags

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October 16th, 2010, 11:47 PM

orvn

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Rails: Modifying <head> to include various metas and title tags

Hello,

I've been learning Ruby these past few days and I'm really liking it. I'm still sort of confused by rails.

I'm trying to integrate a block of meta tags (along with one title tag) into the header of each one of my pages.
The tags & title for every page are different.

Based on the ERB template mechanism that's already running on this site, the path:
...WEBSITE/stable/app/views/main
contains ERB's of all my html files: index.html.erb, about.html.erb, contact.html.erb, etc.

...WEBSITE/stable/app/views/layouts, I find a file named application.html.erb containing the following:

PHP Code:


		
			
<%= yield :extra_header_tags %>     

<%= stylesheet_link_tag 'jquery.lightbox-0.5' %>     

<%= stylesheet_link_tag 'style.css' %> 

    <%= yield :stylesheets %>       

<%= javascript_include_tag ['jquery', 'jquery.lightbox-0.5', 'java.js'] %>     <%= yield :javascripts %>    

<%= yield %>

What is this <%= yield :extra_header_tags %>?
And how do I integrate my meta's in such a way that they're different for every page?
I guess I'm supposed to define some variables and then point them to someplace but I'm not sure how, any help would be very welcome.
Thanks!

(sorry for being such a n00b)

November 14th, 2010, 07:50 PM

krenovkid

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The yield :extra_header_tags tells Ruby to yield to that block when the page is parsed. What you want to do in each template is add the following:
<% content_for :extra_header_tags do %>
enter your custom title, etc here...
<% end %>

What Ruby will do is when it finds that content_for block it will inject it's contents into the matching yield mentioned above

November 24th, 2010, 10:59 AM

robert_head

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Title tag

You could drop this in your layout.

html Code:

Original - html Code
<title><%= page_title %></title>

<title><%= page_title %></title>

And then define the page title in a method in application_helper.rb

Or like this:

html Code:

Original - html Code
<title><%= @page_title %></title>

<title><%= @page_title %></title>

In which case, you'd set @page_title in every controller.

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