msolovyov/simply_stored — comment on commit d527f92cbad3ebb6ff09052af9c98e1403c14af9
File:  line 0
By msolovyov:

When specifying a belongs_to with a :class_name, and in the associated class, specifying a foreign key. Then when taking an instance of the associated class, and doing an add_, it needs to take into account the foreign key, as it will complain saying that the field doesn't exist in the belongs_to class.