ruby on rails - undefined method `edit_class_timetable_path' for #<#<Class:0x0...> -

generated timetable scaffold. later added new action "clas" timetables_controller.rb.

timetables_controller.rb

class timetablescontroller < applicationcontroller   before_action :set_timetable, only: [:show, :edit, :update, :destroy]   respond_to :html  def clas   @classtimetable = timetable.all end  private def set_timetable   @timetable = timetable.find(params[:id]) end  def timetable_params   params.require(:timetable).permit(:day, :clas) end  end 

and view consists of

clas.html.erb

<% @classtimetable.each |class_timetable| %>   <%= class_timetable.day %>   <%= class_timetable.clas %>   <%= link_to 'edit', edit_class_timetable_path(class_timetable) %> <% end %> 

getting error couldn't find timetable without id , error highlighted at,

@timetable = timetable.find(params[:id])

and routes.rb consists of

resources :timetables collection   'clas' end end 

got answer

i made mistake on here

<%= link_to 'edit', edit_class_timetable_path(class_timetable) %> 

to

<%= link_to 'edit', "/timetables/#{class_timetable.id}/edit" %> 

or

<%= link_to 'edit', clas_timetables_path(id: class_timetable.id) %>