Polymorphic association inserts 0 instead of raising error when column is misconfigured as Integer

Posted by zetetic on Stack Overflow See other posts from Stack Overflow or by zetetic
Published on 2010-06-07T08:28:45Z Indexed on 2010/06/07 8:32 UTC
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ruby-on-rails

Here's one that stumped me for a while, though in retrospect it should have been obvious. I was getting the error message

NoMethodError: undefined method `constantize' for 0:Fixnum

when accessing a model through a polymorphic association. Turns out the table on the belongs_to side of the association had an integer type column instead of a string.

Easily fixed, but it seems like Rails ought to raise an error in this situation -- instead it happily adds the row with 0 in the type column.

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Developer IT

Polymorphic association inserts 0 instead of raising error when column is misconfigured as Integer - Developer IT

Polymorphic association inserts 0 instead of raising error when column is misconfigured as Integer

ruby-on-rails

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