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gist: 130373 by freelan... Returning HTML in AJAX call...

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gist: 130420 Download_button fork
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Description:
Returning HTML in AJAX calls for Ruby on Rails.
Public Clone URL: git://gist.github.com/130420.git
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application_controller.rb #
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# Three things to add:
# * before_filter call
# * action_has_layout? method (if you have one, combine them)
# * adjust_for_inline
# 
class ApplicationController < ActionController::Base
  # ...
  
  before_filter :adjust_for_inline
  
  # ...
  
  private
  
  # We don't want no stinking layout if it's an AJAX request.
  def action_has_layout?
    request.format != :inline && super
  end
  
  def adjust_for_inline
    request.format = :inline if request.xhr?
  end
 
  # ...
end
config/initializers/mime_types.rb #
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# Add this line to your existing file.
# Jury's out on the best name for the pseudo-mimetype though.
Mime::Type.register_alias "text/html", :inline
my_controller.rb #
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# A long time ago, in an action far far away
def index
  # ...
  respond_to do |wants|
    wants.inline {
      # ideally use your own view (index.inline.erb)
      render :text => 'success!'
    }
  end
end