socialforge/db/migrate/20160111071529_static_project_news.rb

class StaticProjectNews < ActiveRecord::Migration
  def up
    Project.all.each do |project|
      unless project.news.nil?
        news_count = project.news.count
        project.update_attribute(:news_count, news_count)
      end
    end
  end

  def down
  end
end