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Answer 1

+1 A:

Not sure if this will meet your approval, but this is what I'd do.

Modify you main layout by removing all non-generic stylesheet_link_tag invocations. Replace them with this:

= stylesheet_link_tag 'style_used_in_every_page'
- @stylesheets.each do |css|
  = stylesheet_link_tag css

And in your controller, specify which stylesheets to use for views from that controller:

def UsersController < ApplicationController
  @stylesheets = ['users', 'admin', 'print']
end

Does that make sense? Haven't tested it, but it should get you on the right track.

nfm 2010-10-14 20:52:53

Thanks for your answer nfm!

sscirrus 2010-10-15 01:29:54

Answer 2

A:

layouts/application.erb

<body id="body-<%= content_for :body_name %>">
  ...
</body>

public/stylesheets/combined.css

#header {
  /* styles for all pages */
}

body#body-products {
  /* styles for the products page only */
}

Justice 2010-10-14 20:59:11

Justice, thank you for your answer. I understand that this would select only the styles I want to apply for a particular page. Would I be correct that this would still load a huge stylesheet for each page?

sscirrus 2010-10-14 21:11:46

Yes. But stylesheets typically aren't that big, and the single stylesheet, comparatively small as it is, would be cached by the browser anyway.

Justice 2010-10-14 21:13:42

So it would be fine to have a combined.css sheet of maybe 3-5K rows serving up to 15-20 different discrete stylesheets.

sscirrus 2010-10-14 22:53:25

Yes. Just to be sure, profile how many bytes of transfer it is (the web server should send it down gzipped) and how many milliseconds it takes. But text is highly compressible, and your combined stylesheet, when compressed for transfer, doesn't sound large at all. Also, look into CSS minification, which strips out redundant whitespace and comments. You would develop the combined.css file, and the minification step would produce combined.min.css, which is what your page would reference.

Justice 2010-10-15 00:54:13

Very useful. Thank you.

sscirrus 2010-10-15 01:29:34

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