Facebook Feed Dialog Helper for Rails

gistfile1.rb

# app/helpers/application_helper.rb

# In your View, simply call fb_share with options. app_id and redirect_uri are mandatory.
# For more details, please see http://www.behindtechlines.com/2011/12/09/facebook-feed-dialog-rails/

module ApplicationHelper

	def fb_share(app_id, redirect_uri, opts={})
		o = {:text => 'Share',
			:name => '',
			:display => '',
			:caption => '',
			:description => '',
			:link => '',
			:picture => '',
			:source => '',
			:properties => {},
			:actions => {}}.merge!(opts)
		
		opts_array = []

		opts.each do |key, value| 
			case
			
				when key.to_s == 'properties' 
					@prop = value.to_json
				when key.to_s == 'actions'
					@action = value.to_json
				else 
				opts_array.push("#{key}=#{value}")

			end
		end		


		url = "http://www.facebook.com/dialog/feed?app_id=#{app_id}&redirect_uri=#{redirect_uri}&#{opts_array.join("&")}&properties=#{@prop}&actions=#{@action}"

		link_to("#{o[:text]}", url)
				
	end
end