undefined method `fetch_value' for nil:NilClass on Heroku

Question

My app works perfectly locally, but I have some issues after deploying to Heroku. When I want to create a new car, I click on "New car" link, which leads to /cars/new. App crashes, Heroku logs:

NoMethodError (undefined method `fetch_value' for nil:NilClass):
  app/controllers/cars_controller.rb:20:in `new'

This line in cars_controller is simply

@car = Car.new

In my app I use Devise, OmniAuth and nested resources, though car is a 'parent' resource, so it isn't a problem with nested routes or something. It works perfectly locally.

UPDATE: after seeding database with some cars, error dissapeared and it's possible to access cars/new. But when database is empty, it throws this error. What should I do?

Did you override the `initialize` method in the `Car` model? show us the Car class if you can. — Tamer Shlash, Mar 04 '16 at 10:54
No, my Car class is practically empty - just has_many :bookings — Jes, Mar 04 '16 at 11:11
Please show us at least more stack for that error, this is an uncommon problem and we need more details. — Tamer Shlash, Mar 04 '16 at 11:16

score 0 · Answer 1 · answered Mar 04 '19 at 18:36

0

Maybe something attribute name is a word reserved.

answered Mar 04 '19 at 18:36

thiaguerd

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undefined method `fetch_value' for nil:NilClass on Heroku

1 Answers1