collection_check_box in ruby on rails?

Question

I want to use collection_check_boxes (in rails 4) but i am a little bit stuck

I have 2 models:

class Supervisioncategory < ActiveRecord::Base
 has_many :phonenotes
end

and

class Phonenote < ActiveRecord::Base
 belongs_to :employee
 belongs_to :supervisioncategory
 belongs_to :trainingcategory
end

and I want to use collection_check_box for the categories shows all the categories I want, I can check them, I made the ":supervision_ids" accessible. But then nothing happend?

I think my problem is at the type of the ":supervision_ids".. integer won't work, string won't work. Please help?

Answer 1

View source as generated by Rails in your browser, and see what these checkboxes look like in HTML.

That's where I would start debugging this. My guess is that you need these to be supervisioncategory_ids, since that's what the b/t is saying the model is named. But without looking at the HTML, we won't know if your checkboxes are properly named to post as an array back to your controller.