Note: This is the Rocket Sensei fork of activeadmin_trumbowyg, providing full ActiveAdmin 4 and Rails 8 support.

An Active Admin plugin to use Trumbowyg as WYSIWYG editor in form inputs.

Features:

• Fast & lightweight rich editor for Active Admin
• Customizable options via data attributes
• Plugin support (image upload, emoji, etc.)
• Dark mode support for ActiveAdmin 4
• Automatic NPM package publishing on new releases

Please ⭐ if you like it.

This version is designed for ActiveAdmin 4.x with modern JavaScript bundlers (esbuild/webpack).

• ActiveAdmin 4.x: Use version 2.x of this gem
• ActiveAdmin 1.x - 3.x: Use version 1.x of this gem

• Ruby >= 3.2
• Rails >= 7.0
• ActiveAdmin ~> 4.0.0.beta
• Modern JavaScript bundler (esbuild or webpack)
• Propshaft for asset management (included in Rails 8, add manually for Rails 7)

Note: This gem is specifically designed for ActiveAdmin 4 with modern JavaScript bundlers. Sprockets is not supported.

Add to your Gemfile:

gem 'rs-activeadmin_trumbowyg', '~> 4.0.3'

# For Rails 7, also add Propshaft (Rails 8 includes it by default):
gem 'propshaft' # Required for Rails 7

Then run bundle install.

ActiveAdmin 4 uses modern JavaScript bundlers. Choose your setup:

1. Install the NPM packages:

npm install @rocket-sensei/activeadmin_trumbowyg jquery trumbowyg

2. Import and configure in your app/javascript/active_admin.js:

// Import jQuery and make it globally available (required by Trumbowyg)
import $ from 'jquery';
window.$ = window.jQuery = $;

// Import Trumbowyg
import 'trumbowyg';

// Import and setup ActiveAdmin Trumbowyg
import { setupAutoInit } from '@rocket-sensei/activeadmin_trumbowyg';

// Optional: Configure the SVG icons path (default is '/icons.svg')
// window.TRUMBOWYG_SVG_PATH = '/assets/icons.svg';

setupAutoInit();

3. Copy Trumbowyg assets (icons and CSS) for Propshaft:

# Add these to your package.json scripts section:
"copy:trumbowyg-icons": "mkdir -p app/assets/builds && cp node_modules/trumbowyg/dist/ui/icons.svg app/assets/builds/icons.svg",
"copy:trumbowyg-css": "cp node_modules/trumbowyg/dist/ui/trumbowyg.min.css app/assets/builds/trumbowyg.css",
"build:assets": "npm run copy:trumbowyg-icons && npm run copy:trumbowyg-css"

# Then run:
npm run build:assets

Note for Rails with Propshaft: The icons.svg file needs to be accessible via HTTP. The default path is /icons.svg but you can configure it by setting window.TRUMBOWYG_SVG_PATH before calling setupAutoInit(). In production, Propshaft will serve files from app/assets/builds/ with digest paths. You may need to configure the path based on your deployment setup.

4. Add Trumbowyg styles to app/assets/stylesheets/active_admin.css:

/* Import Trumbowyg styles - the exact path depends on your asset pipeline setup */
/* For Propshaft/esbuild, the CSS will be in app/assets/builds/ */
@import 'trumbowyg.css';

/* Custom Trumbowyg input styles */
.trumbowyg-box {
  margin: 0;
}

.trumbowyg-editor {
  min-height: 200px;
}

Note: The icons.svg and trumbowyg.css files are copied from the npm package to your assets/builds directory. These files should be added to .gitignore as they're generated during the build process:

# Ignore generated Trumbowyg assets
app/assets/builds/icons.svg
app/assets/builds/trumbowyg.css

Importmap users need manual configuration as it doesn't support NPM packages:

1. Run the installation generator:

rails generate active_admin:trumbowyg:install --bundler=importmap

This will:

• Add pins to your config/importmap.rb
• Copy vendor JavaScript files
• Add Trumbowyg styles to your ActiveAdmin stylesheet

ActiveAdmin.register Article do
  form do |f|
    f.inputs 'Article' do
      f.input :title
      f.input :description, as: :trumbowyg
      f.input :published
    end
    f.actions
  end
end

For production environments, simply deploy as usual. All assets are handled automatically through the NPM package or CDN.

form do |f|
  f.inputs 'Article' do
    f.input :title
    f.input :description, as: :trumbowyg
    f.input :published
  end
  f.actions
end

The data-options attribute allows you to pass Trumbowyg configuration directly. For reference see options list.

f.input :description, as: :trumbowyg, input_html: { 
  data: { 
    options: { 
      btns: [
        ['bold', 'italic'], 
        ['superscript', 'subscript'], 
        ['link'], 
        ['justifyLeft', 'justifyCenter', 'justifyRight', 'justifyFull'], 
        ['unorderedList', 'orderedList'], 
        ['horizontalRule'], 
        ['removeformat']
      ] 
    } 
  } 
}

Plugin reference here.

Add to your JavaScript file (after importing trumbowyg):

import 'trumbowyg/dist/plugins/upload/trumbowyg.upload.js';

Form field config:

unless resource.new_record?
  f.input :description, as: :trumbowyg, input_html: { 
    data: { 
      options: { 
        btns: [['bold', 'italic'], ['link'], ['upload']], 
        plugins: { 
          upload: { 
            serverPath: upload_admin_post_path(resource.id), 
            fileFieldName: 'file_upload' 
          } 
        } 
      } 
    } 
  }
end

Upload action (using ActiveStorage):

member_action :upload, method: [:post] do
  result = { success: resource.images.attach(params[:file_upload]) }
  result[:file] = url_for(resource.images.last) if result[:success]
  render json: result
end

For a complete upload example, see examples/upload_plugin_using_activestorage/.

If upgrading from version 1.x:

1. Update Ruby to >= 3.2 and Rails to >= 7.0
2. Update to ActiveAdmin 4.x
3. Remove old asset pipeline configurations:
   • Remove //= require activeadmin/trumbowyg/trumbowyg from active_admin.js
   • Remove //= require activeadmin/trumbowyg_input from active_admin.js
   • Remove @import 'activeadmin/trumbowyg/trumbowyg'; from active_admin.scss
   • Remove @import 'activeadmin/trumbowyg_input'; from active_admin.scss
4. Install the NPM package and import it (for esbuild/webpack) or run the generator (for importmap) - see Step 2 above

Make sure jQuery and Trumbowyg are loaded before the initialization script. Check your browser console for errors.

Ensure you're using the correct version of Trumbowyg from NPM. Icons are embedded in the CSS from the NPM package.

Ensure you're importing the plugin JavaScript files after the main Trumbowyg library.

The changelog is available here.

Bug reports and pull requests are welcome on GitHub at https://github.com/glebtv/activeadmin_trumbowyg.

For development information please check this document.

The JavaScript portion of this gem is automatically published to NPM as @rocket-sensei/activeadmin_trumbowyg when a new version tag is created. This happens through GitHub Actions CI/CD pipeline.

If you're using the original activeadmin_trumbowyg gem, please see our Migration Guide for detailed upgrade instructions.

If you use this component just star it. A developer is more motivated to improve a project when there is some interest. My other Active Admin components.

Or consider offering me a coffee, it's a small thing but it is greatly appreciated: about me.

The gem is available as open-source under the terms of the MIT.