Forum: Ruby on Rails best practice for modifying html header in templates

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Ball, Donald A Jr (Library) (Guest)
on 2007-04-18 23:25
(Received via mailing list)
In my rails app, I have a few resources whose header needs differ from
the rest of the resources - they need extra javascript libraries, or
different css stylesheets, or link to an RSS feed to which I'd also like
to link in the html header. All pages share a standard layout template,
of course. I'm wondering what the best practice is for adding extra
stuff to the html header for individual pages. Currently, I populate
@extra_javascripts and @extra_stylesheets variables in the page
templates that require extra love, and check for the existence of those
variables in the master layout and add the links as necessary. I could
do this again for my rss feed, but this strikes me as a bit smelly. Has
anyone tackled a better approach to this?

- donald
Philip H. (Guest)
on 2007-04-18 23:58
(Received via mailing list)
> anyone tackled a better approach to this?
In your views do something like this:

<% content_for("page_header") do -%>
   <%= javascript_include_tag 'my_special_js' %>
<% end -%>

Then in your layout do this:

<%= yield "page_header" %>

We do this and it works quite well.  Another nice one is
"page_ending_javascript" for those odd cases where the javascript has to
go at the end of the page just before the closing </body>.

Ball, Donald A Jr (Library) (Guest)
on 2007-04-19 00:20
(Received via mailing list)
> <head>
> ...
> <%= yield "page_header" %>
> ...
> </head>

That's _exactly_ the elegant solution I was hoping existed. Many thanks.

- donald
Jodi S. (Guest)
on 2007-04-19 04:13
(Received via mailing list)
On 18-Apr-07, at 4:18 PM, Ball, Donald A Jr ((Library)) wrote:

>> ...
That's a really cool solution Philip. Learn something new very other

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