Seems like content_for, content_for_once embed the HTML tags(especially, javascript_include_tag and stylesheet_link_tag) just only once.
Add this line to your Rails application's Gemfile:
gem 'content_for_once'Prepare some layout file.
-# layout.html.haml
%html
%head
= yield :css
= yield :jsWrite content_for_once block, and write tags that you want to use it only once in the page.
-# sample.html.haml
- content_for_once :css do
= stylesheet_link_tag "sample1"
= render 'sample_mini'
-# _sample_mini.html.haml
- content_for_once :css do
= stylesheet_link_tag "sample1"
= stylesheet_link_tag "sample2"
Then rendered page has unique tags!
<html>
<head>
<link rel='stylesheet' href='sample1.css'>
<link rel='stylesheet' href='sample2.css'>
</head>
<html>After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
Bug reports and pull requests are welcome on GitHub at https://github.com/tanukiti1987/content_for_once.
The gem is available as open source under the terms of the MIT License.
content_for_once is being influenced s21g's article.
Thanks.