So, I'm attempting to make sure that the associated user_id of an object
cannot be changed on update and I'm doing this with a before_update
callback and this method in the model:
before_update :lock_user_id
def lock_user_id
if self.user_id_changed?
self.user_id = self.user_id_was unless self.user_id_was == nil
end
true
end
but this spec fails:
it "user_id cannot be changed once QR has been created" do
@qr.update_attributes(:user_id => -1)
@qr.user_id.should == @user.id
end
at first I thought it was that update_attributes did not do a complete
save (not that i've ever enabled partial saves), but this alternate spec
also fails:
it "user_id cannot be changed once QR has been created" do
@qr.user_id = 99
@qr.save
@qr.user_id.should == @user.id
end
even stranger is that a method in another model which does the same
thing for another attribute passes its test.
Anybody have any idea what i'm doing wrong/alternate suggestions?
Thanks.
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