Job for fetching Facebook checkins though Fb_Graph

facebook_job.rb

class FacebookJob
  def initialize
#     DebugMailer.email('initialize').deliver
  end
  
  def perform
#     DebugMailer.email('facebook').deliver
    begin 
#       DebugMailer.email('beginning').deliver
      fb_auths = Authentication.where(:provider => 'facebook')
      fb_auths.each do |auth|
        # raise auth.token.to_s
        checkins = FbGraph::User.new('me', :access_token => URI.encode(auth.token)).checkins
        # checkins = fb_user.checkins
        if checkins != nil 
#           DebugMailer.email('harvesting checkins').deliver
          checkins.each do |checkin|
            fb_venue = FacebookVenue.where(:service_venue_id => checkin.place.identifier).first
            # fb_venues_found << checkin.place.identifier #debug
            if fb_venue != nil #do we monitor this location?
              # Only insert new checkins:
              unless FacebookCheckin.where(:service_checkin_id => checkin.identifier).first
#                 DebugMailer.email('A new one!').deliver
                message = !checkin.message ? "" : checkin.message
                sl_checkin = Checkin.new(:user => auth.user, :venue => fb_venue.venue, :datetime => checkin.created_time)
                sl_checkin.save!
                fb_checkin = FacebookCheckin.new(:checkin => sl_checkin, :service_checkin_id => checkin.identifier, :message => message)
                fb_checkin.save!
              end
            end
          end
        end
      end
    rescue
      DebugMailer.email('something went wrong in facebook_job').deliver
    end
  end
end