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Integrate CKEditor javascript library with Rails asset pipeline

README.md

CKEditor for rails asset pipeline

CKEditor is a library for WYSIWYG editor to be used inside web pages.

The ckeditor_rails gem integrates the CKEditor with the Rails asset pipeline.

And it would work with following environments:

  • ruby 1.9.3+
  • rails 3.0+

Basic Usage

Install ckeditor_rails gem

Include ckeditor_rails in Gemefile

gem 'ckeditor_rails'

Then run bundle install

Include CKEditor javascript assets

Add to your app/assets/javascripts/application.js after //= require jquery_ujs to work with jQuery

//= require ckeditor-jquery

Modify form field for CKEditor

Add ckeditor class to text area tag

<%= f.text_area :content, :class => 'ckeditor' %>

Initialize CKEditor in Javascript file

$('.ckeditor').ckeditor({
  // optional config
});

Deployment

Since version 4.1.3, non-digested assets of ckeditor-rails will simply be copied after digested assets were compiled.

Eric Anderson, thanks.

Advanced Usage

Include customized configuration javascript for CKEditor

Add your app/assets/javascripts/ckeditor/config.js.coffee like

CKEDITOR.editorConfig = (config) ->
  config.language = "zh"
  config.uiColor = "#AADC6E"
  true

Include customized CKEDITOR_BASEPATH setting

Add your app/assets/javascripts/ckeditor/basepath.js.erb like

<%
  base_path = ''
  if ENV['PROJECT'] =~ /editor/i
    base_path << "/#{Rails.root.basename.to_s}/"
  end
  base_path << Rails.application.config.assets.prefix
  base_path << '/ckeditor/'
%>
var CKEDITOR_BASEPATH = '<%= base_path %>';

Include customized stylesheet for contents of CKEditor

Add your app/assets/stylesheets/ckeditor/contents.css.scss like

body {
  font-size: 14px;
  color: gray;
  background-color: yellow;
}
ol,ul,dl {
  *margin-right:0px;
  padding:4 20px;
}

Gem maintenance

Maintain ckeditor_rails gem with Rake commands.

Update origin CKEditor source files.

rake update_ckeditor VERSION=4.3.4

Publish gem.

rake release

Troubleshooting

CKEditor only loading after page refresh

This is due to interference with Turbolinks -

The problem stems from the link itself so in order to resolve this issue you must disable turbolinks in the div containing the link pointing to where CKEditor is.

You can visit the Rails Turbolinks Repo for detailed documentation https://github.com/rails/turbolinks/#opting-out-of-turbolinks

Example

<div class="example" data-no-turbolink>
...
</div>

License

CKEditor use CKEditor license.

Other parts of gem use MIT license.

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