ruby - undefined method `refreshProfile_affinity_path' for #<#<Class:0x8daee70>:0x8dbdc30> -

i'm getting error in title. not sure how write routes, controller, , index.

i trying create 'refresh' button in index.html.erb view shown below:

... <td><%= link_to 'refresh', refreshprofile_affinity_path(a), method: :put %></td> ... 

it using route in routes.rb:

  resources :affinities   put 'affinities/refreshprofile/:id' => 'affinities#refreshprofile' 

it trying access following method in affinities_controller.erb:

... def refreshprofile     @affinity = affinity.find(params[:id])     new_profile_affinity = user.find(@affinity.user_a_id).profile_affinity_with(user.find(@affinity.user_b_id))      if @affinity.update_attributes(:integer, new_profile_affinity)         redirect_to @affinity     end end ... 

what wrong? appreciated!

you need add as: route, specifies prefix helper method , why you're getting undefined method error e.g.

put 'affinities/refreshprofile/:id' => 'affinities#refreshprofile',   as: 'refreshprofile_affinity' 

refreshprofile_affinity_path work, or give shorter, snappier name e.g. as: 'refreshprofile' , use refreshprofile_path.