Rails 4 Inherited Resources throwing ConstraintException when posting

Question

I have a pretty simple model called Deal with name and description where name is non-nullable.

When I post the following to /api/deals

{"name":"oaeu"}

I get the error

SQLite3::ConstraintException: deals.name may not be NULL: INSERT INTO "deals" ("created_at", "updated_at") VALUES (?, ?)

My Model

enter code here

My Controller

class DealsController < InheritedResources::Base

   protected
   def permitted_params
     params.require(:deal).permit(:name)
   end
end

My Model

class Deal < ActiveRecord::Base
end

I can't figure out what is going on!!!

My Gemfile includes:

gem 'rails', '4.0.2'

and

gem 'inherited_resources'

Any ideas?

Answer 1

Params

Firstly, your strong params are incorrect:

  def permitted_params
     params.permit(deal: [:name])
  end

As mentioned in this blog post, and this github post, you'll get errors unless use the above code!

---

Saving

As mentioned in the comments, it seems your save process is by-passing your inherited resources controller

It seems you're using an API, so perhaps that it sending straight to the model; either way, you'll have to detail how you're saving the inbound data

Answer 2

It seems you need to overwrite the #resource_params method in your controller.

def resource_params
    [ params.require(:deal).permit(:name) ]
end

See: https://github.com/josevalim/inherited_resources/issues/236 http://blog.josemarluedke.com/posts/inherited-resources-with-rails-4-and-strong-parameters