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Danish Saleem
7,965 Pointsundefined method error when using form_for
Hi , i understand that the form_for takes an Model Object , i defined it as below in controller class
def new
@coffenew = CoffeType.new
end
however when i use <%= form_for (@coffenew) do |c| ......
i got the following error:
undefined method `coffe_types_path' for #<#<Class:0x007fe452f23a80>:0x007fe453e13f18>
Did you mean? coffe_new_path
it works for me if i use the url argument with form_for as <%= form_for(@coffenew , url: 'new') do |c| %> since my route.rb has
get '/coffe/new' , to: 'coffe#new'
but i do not know why i am getting this error and why it is not working the same as in video, need help plz
Pragadesh Krishnan
3,020 PointsI too get the same error
CONTROLLER FILE
def edit
@cric_prof = CricProfile.find(params[:id])
edit.html.erb
%= form_for(@cric_prof) do |f| %>
router.rb
Rails.application.routes.draw do
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
get '/cric_profiles', to: 'cric_profiles#index', as: 'profiles'
# post '/cric_profiles', to: 'cric_profiles#add', as: add_new_player
get '/cric_profiles/new', to: 'cric_profiles#new'
get '/cric_profiles/:id', to: 'cric_profiles#show', as: 'cric_prof_show'
get '/cric_profiles/:id/edit', to: 'cric_profiles#edit'
post '/cric_profiles', to: 'cric_profiles#add'
delete '/cric_profiles/:id', to: 'cric_profiles#delete', as: 'cricDel'
end
Jay McGavren
Treehouse TeacherPragadesh Krishnan Can you copy the exact error you're getting and paste it here? For example, Danish got the error
undefined method `coffe_types_path' for #<#<Class:0x007fe452f23a80>:0x007fe453e13f18>
Did you mean? coffe_new_path
above. It looks like he was missing a coffe_types_path method. What method does it report as missing for you?
Jay McGavren
Treehouse TeacherPragadesh Krishnan I notice you're using some non-standard route names. form_for expects particular path helper methods to exist, and using non-standard route names could lead to conflicts. Your routes should look roughly like this:
Rails.application.routes.draw do
get '/cric_profs', to: 'cric_profs#index'
post '/cric_profs', to: 'cric_profs#create'
get '/cric_profs/new', to: 'cric_profs#new', as: 'new_cric_prof'
get '/cric_profs/:id', to: 'cric_profs#show', as: 'cric_prof'
get '/cric_profs/:id/edit', to: 'cric_profs#edit', as: 'edit_cric_prof'
patch '/cric_profs/:id', to: 'cric_profs#update'
delete '/cric_profs/:id', to: 'cric_profs#destroy'
end
Pragadesh Krishnan
3,020 PointsThank you Jay for your clarification. So Would i have avoided the error if i used the instance variable in the controller file something like this def edit @cric_profile = CricProfile.find(params[:id])
Jay McGavren
Treehouse TeacherPragadesh Krishnan Sorry, but I won't know how to help you until I see the exact error you got!
2 Answers
Ethan Rivas
9,979 PointsSorry I didn't get it, when you get that error and when it does work?
chase dougherty
11,536 PointsI had to use <%= form_for :post do |f| %>
Jay McGavren
Treehouse TeacherJay McGavren
Treehouse TeacherDanish Saleem I think you're missing a route that you need. Can you post your entire
routes.rbfile? Can you runbin/rails routesat the command line and post the result of that?