has_one and create

rubyonrails-talk
1

Hi,

I am wondering why this does not work?

  Email.find(1).the_file.create

Email model   has_one :the_file

Email.find(1).the_file always returns nil (until there is an association) and you cannot do a create... Any suggestions?

2

Hi,

I am wondering why this does not work?

  Email.find(1).the_file.create

It doesn't work because that's now how you do it. has_one works differently from has_many.

Email model   has_one :the_file

Email.find(1).the_file always returns nil (until there is an association) and you cannot do a create... Any suggestions?

Per the docs:

   Email.find(1).create_the_file(attrs)

see: ActiveRecord::Associations::ClassMethods

HTH