Default rescue for all actions/controllers

application_controller.rb

#To be placed in application_controller.rb


  rescue_from Exception, :with => :rescue_all_exceptions  unless %W(development test).include?(Rails.env)
    
  def rescue_all_exceptions(exception)
    buffer = "[EXCEPTION] "
    buffer << exception.message << "\t(Request: #{request.url}\t Referrer: (#{request.env['HTTP_REFERER']} ) \n\t"
    buffer << exception.backtrace.join("\n\t")
    Rails.logger.error buffer

    respond_to do |format|
      format.html { redirect_to '/500.html'}
      format.js { render :nothing => true, :status => 500 }
    end    
  end