Rails How To Write "create" Action In Habtm Model Controller

I'm relatively new to Rails and I am having an enormous difficulty trying to work with models that have HABTM associations between them. These are my models: challenge.rb: class C

Solution 1:

The actual answer is add "skills" to your accepted parameters:

defapproved_params
  params.require(:challenge).permit(
    :name,
    :description,
    ...
    :skills => []
  )
end

then have in your create/update:

def update@controller.update(approved_params)
end

That's it

Solution 2:

My advice is to stay away from HABTM and switch to has_many :through it'll be easier to work with and more flexible to change (add attributes) over time.

See

http://guides.rubyonrails.org/association_basics.html#the-has_many-through-association

and

https://stackoverflow.com/a/11601236/631619

and here's a nice comparison of the two:

http://railscasts.com/episodes/47-two-many-to-many