Posted over 6 years ago. Visible to the public.

Unsaved record disappears when assigning to an association

If this happens to you:

user.avatar = user.avatar # => nil

(where avatar is a belongs_to), you probably declared your association incorrectly.

Always do

class User < ActiveRecord::Base belongs_to :avatar end

and never

class User < ActiveRecord::Base belongs_to 'avatar' end

By refactoring problematic code and creating automated tests, makandra can vastly improve the maintainability of your Rails application.

Owner of this card:

Tobias Kraze
Last edit:
about 4 years ago
by Henning Koch
About this deck:
We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Tobias Kraze to makandra dev
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