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  def content_tag(*args)
    if block_given?
      tag = Tag.new(args[0])
      old_buf = @output_buffer
      @output_buffer = ActionView::OutputBuffer.new
      yield(tag)
      content = tag.render(@output_buffer)
      @output_buffer = old_buf
      content
    else

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<%= content_tag :div do |div| %>
  It's a
  <% div.css << 'test' %>
  div
<% end %>

<%= content_tag :div do |div| %>
  <% div.css << :boo %>
  Embedded tag awesomeness!
  <%= content_tag :p do |p| %>

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<%= content_tag :div do |div| %>
  <% div.css << 'test' %>
 
  <%= content_tag :h2 do |h| %>
    <% h.css << :boo %>
    Hi!
  <% end %>
<% end %>

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Everytime a HTML tag has the [as=*] attribute, Shiny will instantiate a Javascript object on the fly. It's not instantiate until it reaches the main Document. So you can manipulate it off screen and the object will only be created once it's appended to the document.


No need to check for document ready or page:load(turbolinks), everything is instantiated as soon as a valid DOM is found. 

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/Users/pothibo/Develop/ecrire/lib/ecrire/app/models/label.rb:9: syntax error, unexpected '\n', expecting =>
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:443:in `load'
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:443:in `block in load_file'
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:633:in `new_constants_in'
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:442:in `load_file'
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:342:in `require_or_load'
	from /usr/local/var/rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/activesupport-4.1.1/lib/active_support/dependencies.rb:480:in `load_missing_constant'
	from /usr/

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ip_address_whitelist:
   - 127.0.0.1
   - 1.2.3.4
   - 5.6.7.8
whitelisted_pages:
   - /assets/.*
   - /
   - /login

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module MyProject
  class Application < Rails::Application
    
    initializer 'configure devise' do |app|
      app.config.devise.somethin = 'blabla'
    end
  end
end

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class MyController < ApplicationController
  
  def create

    params_array_not_supported.each do |offer| # KABOOOM!
       ...
    end 

    offers_params_not_chanaible_with_array.each do |offer_param|
      Offer.new offer_param # ActiveModel::ForbiddenAttributes

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module YouApp 
  class Applcication < Rails::Application
  end
end

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class ThingsController
  def create
    @thing = Thing.new(thing_params)
    thing.creator = current_user
    thing.save!
    Stats.count("Thing Created", 1)
    Thing.delay.send_notifications(thing.id)
  end

  def update