You no longer need to add javascript libraries as gems (which are managed by the bundler). Instead, you add them with yarn and they are managed by webpack (which is enabled by adding the webpacker gem to the Gemfile).
The following steps worked for me to get jquery-ui working in Rails 6:
- On the terminal, inside your application type:
yarn add jquery-ui-dist
- Your
config/webpack/environment.js
needs to look as follows:
const { environment } = require('@rails/webpacker')
const webpack = require('webpack')
environment.plugins.prepend('Provide',
new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery'
})
);
const aliasConfig = {
'jquery': 'jquery-ui-dist/external/jquery/jquery.js',
'jquery-ui': 'jquery-ui-dist/jquery-ui.js'
};
environment.config.set('resolve.alias', aliasConfig);
module.exports = environment
Restart your rails server
In the application.html.erb
, include the jquery-ui
theme:
<!DOCTYPE html>
<html>
<head>
<title>Jquery UI Test</title>
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= stylesheet_link_tag '//ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/le-frog/jquery-ui.min.css' %>
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
</head>
<body>
<%= yield %>
</body>
</html>
- Now, in your
app/javascript/packs/application.js
, you can use jquery-ui
:
NOTE: If you would like to use jQuery inside your views
folder, make it available globally
require("@rails/ujs").start()
require("turbolinks").start()
require("@rails/activestorage").start()
require("channels")
// THIS IS MAKING jQuery AVAILABLE EVEN INSIDE Views FOLDER
global.$ = require("jquery")
require("jquery") // Don't really need to require this...
require("jquery-ui")
$(function(){
// Plain jquery
$('#fadeMe').fadeOut(5000);
// jquery-ui
const availableCities = ['Baltimore', 'New York'];
$('#cityField').autocomplete( { source: availableCities } );
$('#calendarField').datepicker( { dateFormat: 'yy-mm-dd' } );
})
This will work for a page that looks as follows:
<div id='fadeMe'>I will fade</div>
City: <input type='text' id='cityField' />
Calendar: <input type='text' id='calendarField' />