Rails (3.2+) bindings for Opal Ruby (v0.3.27) engine.
In your Gemfile
gem 'opal-rails'// app/assets/application.js
// The Opal runtime
// = require opal
//
// Dom manipulation
// = require jquery
// = require opal-jqueryand then just use the .rb or .opal extensions:
# app/assets/javascripts/hi-world.js.rb
puts "G'day world!" # check the consoleYou can use it for your views too, it even inherits instance and local variables from actions:
# app/controllers/posts_controller.rb
def create
@post = Post.create!(params[:post])
render type: :js, locals: {comments_html: render_to_string(@post.comments)}
endEach assign is filtered through JSON so it's reduced to basic types:
# app/views/posts/cerate.js.opal
Document['.post .title'].html = @post[:title]
Document['.post .body'].html = @post[:body]
Document['.post .comments'].html = comments_htmlOf course you need to require haml-rails separately since its presence is not assumed
-# app/views/posts/show.html.haml
%article.post
%h1.title= post.title
.body= post.body
%a#show-comments Display Comments!
.comments(style="display:none;")
- post.comments.each do |comment|
.comment= comment.body
:opal
Document.ready? do
Document['#show-comments'].on :click do
Document['.comments'].first.show
false
end
endAdd a spec.js into assets/javascripts to require your specs
// = require_tree ./specand then a spec folder with you specs!
# assets/javascripts/spec/example_spec.js.rb
describe 'a spec' do
it 'has successful examples' do
'I run'.should =~ /run/
end
endThen visit /opal_spec from your app and reload at will.
During eager loading (e.g. in production or test env) Rails loads all .rb files inside app/ thus catching Opal files inside app/assets or app/views, the workaround for this is to add the following code to application.rb
# Don't eager load stuff from app/assets and app/views
config.before_initialize do
config.eager_load_paths = config.eager_load_paths.dup - Dir["#{Rails.root}/app/{assets,views}"]
endNOTE: Rails does not do this on purpose, but the paths system (which states no eager loading for assets/views) is caught in a corner case here. I opened an issue on Rails already.
© 2012 Elia Schito
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.