SweetAlert2 for Rails
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nicolasblanco Merge pull request #4 from eterry1388/patch-1
Verify options is a hash before pulling out confirm
Latest commit 4a6c84b Jun 21, 2017



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This library easily integrates the SweetAlert 2 library into a Rails application.

It replaces the boring standard JavaScript alert boxes with nice looking and animated ones.


Using the same Rails markup :

  = link_to 'Delete', item, method: :delete, data: { confirm: 'Are you sure you want to delete this item?' }

It is heavily based on the work from Moises Viloria with SweetAlert. Some cleaning and refactoring were made to make it compatible with SweetAlert 2.

It replaces the browser confirm dialog when using data: { confirm: 'message' } with the link_to helper with a nice looking sweet alert.


Rails >= 4.2, tested with Rails 5


Add the SweetAlert2 and sweet-alert2-rails to your Gemfile:

gem 'rails-assets-sweetalert2', '~> 5.1.1', source: 'https://rails-assets.org'
gem 'sweet-alert2-rails'

Add the following to application.js:

//= require sweetalert2
//= require sweet-alert2-rails

Note : if you're using Rails >= 5.1, you need to inject before this plugin jquery and jquery-ujs because they are not dependencies anymore. Read https://github.com/rails/jquery-rails#installation for more information.

Add the following to application.css:

 *= require sweetalert2

Try it:

  = link_to "Delete", user, method: :delete, data: { confirm: 'Are you sure?' }

Custom options

You may pass options in data:

 data: {
  confirm: 'Are you ready?',
  'confirm-button-text': 'Im ready',
  'cancel-button-text': 'No way',
  'confirm-button-color': '#66CD00',
  'sweet-alert-type': 'info',
  text: 'This is a subtitle',
  'image-url': '/pic.png'

Default options that will be used application wide so it is not necessary to set the option on each link. Put this object inside your app to override default options with the sweetAlertConfirmConfig object.

window.sweetAlertConfirmConfig = {
  title: 'Are you sure?',
  type: 'warning',
  showCancelButton: true,
  confirmButtonColor: '#DD6B55',
  confirmButtonText: 'Ok'


Fork the repo & make a pull request with your fix or feature. Thanks :).