Ruby on Rails helpers to add asset links to views. Extracted from merb-assets Merb plugin.
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{RequireAssets::Helpers#require_js require_js} is smart(-er) way to do includes just once per page no matter how many times partial use it.
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{RequireAssets::Helpers#require_css require_css} is like require_js but for CSS.
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{RequireAssets::Helpers#include_required_js include_required_js} generates script tags for previously included files.
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{RequireAssets::Helpers#include_required_css include_required_css} generates link tags for previously included files.
{RequireAssets::Helpers#require_js require_js} and {RequireAssets::Helpers#require_css require_css}, {RequireAssets::Helpers#include_required_js include_required_js} and {RequireAssets::Helpers#include_required_css include_required_css} require assets just once:
In your application layout:
include_required_js
In your controller layout:
require_js 'posts'
The require_js method can be used to require any JavaScript file anywhere in your templates. Regardless of how many times a single script is included with require_js, it will only be included once in the header.
# File: app/views/layouts/application.html.erb
<html>
<head>
<%= include_required_js %>
<%= include_required_css %>
</head>
<body>
<%= yield %>
</body>
</html>
# File: app/views/whatever/index.html.erb
<% require_js 'this' -%>
<% require_css 'that', 'another_one' -%>
# Will generate the following in the final page...
<html>
<head>
<script src="/javascripts/this.js" type="text/javascript"></script>
<link href="/stylesheets/that.css" media="screen" rel="stylesheet" type="text/css"/>
<link href="/stylesheets/another_one.css" media="screen" rel="stylesheet" type="text/css"/>
</head>
.
.
.
</html>