Question

I have a user model with has_one :designpad, a designpad model with belongs_to :user and the column user_id.

Now I do this:

u = User.first
d = Designpad.new
d.user_id = u.id
d.save

d.user # returns the user (== u)
u.designpad # always returns nil, but why?

Why does u.designpad return nil? u.methods lists the methods designpad and designpad=, just as expected while using a has_one association.

But u.designpad just won’t return the expected designpad.

Answer 1

As @keymone said, the problem that your u object is not reloaded. Also you can refactor your code a little:

u = User.first
d = user.create_designpad
# Check:
d.user
#=> u
u.designpad
#=> d