socialforge/db/migrate/20161223025155_delete_15550user_data.rb

class Delete15550userData < ActiveRecord::Migration
  def up
    error_user_activity = Message.where(:author_id => 15550)
    if error_user_activity.count > 0
      error_user_activity.each do |eua|
        eua.delete
      end
    end
  end

  def down
  end
end