Comments on: Rails mistake of the day: validating a relationship before it’s created http://infovore.org/archives/2007/04/03/rails-mistake-of-the-day-validating-a-relationship-before-its-created/ a weblog by Tom Armitage Mon, 06 Feb 2012 22:42:35 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Tom http://infovore.org/archives/2007/04/03/rails-mistake-of-the-day-validating-a-relationship-before-its-created/comment-page-1/#comment-29719 Tom Wed, 04 Apr 2007 21:42:32 +0000 http://infovore.org/archives/2007/04/03/rails-mistake-of-the-day-validating-a-relationship-before-its-created/#comment-29719 validates_presence_of :topic doesn't work either - same problem as with :topic_id, alas, as far as I can tell. I'm sure there's a numpty error at the heart of my problems, but I've covered most bases by now... validates_presence_of :topic doesn’t work either – same problem as with :topic_id, alas, as far as I can tell.

I’m sure there’s a numpty error at the heart of my problems, but I’ve covered most bases by now…

]]> By: Roland http://infovore.org/archives/2007/04/03/rails-mistake-of-the-day-validating-a-relationship-before-its-created/comment-page-1/#comment-29717 Roland Wed, 04 Apr 2007 21:32:07 +0000 http://infovore.org/archives/2007/04/03/rails-mistake-of-the-day-validating-a-relationship-before-its-created/#comment-29717 Can you not do one of: validates_presence_of :topic (note - no _id) or validates_associated :topic to check that the topic is in itself valid. I haven't tried either of these, but I think they'd work. Can you not do one of:

validates_presence_of :topic

(note – no _id)

or validates_associated :topic to check that the topic is in itself valid.

I haven’t tried either of these, but I think they’d work.

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