Rails -> Koala

facebook_controller.rb

class FacebookController < ApplicationController

  def initialize
    #specify access_token here
    @access_token = 'X'
    #Picking the graph api object from kaola gem
    @graph = Koala::Facebook::API.new(@access_token)
  end

  def page_wall_post
    @access_token = params[:access_token].present? ? params[:access_token] : @access_token
    title = params[:title]
    page_link = params[:page_link]
    link_name = params[:link_name]
    description = params[:description]
    image_url = params[:image_url]
    success_msg = 'Article Posted'

    begin
      #put_wall_post is method to post an article to the pages
      post_info = @graph.put_wall_post(title, {
          name: link_name, description: description, picture: image_url, link: page_link
      })
    rescue Exception => e
      success_msg = e.message
    end

    render text: success_msg
  end

  def delete_page_wall_posts
    message = 'successfully delete posts'
    page_id = params[:page_id]

    begin
      loop do
        posts = @graph.fql_query("select post_id from stream where source_id=#{page_id} and is_hidden=0")
        break if posts.empty?
        posts.each do |post|
          @graph.delete_object(post["post_id"])
        end
        puts 'sleeping ... 120 seconds'
        sleep 120
      end
    rescue Exception => e
      message = e.message
    end
    render text: message
  end
end