Hi all,
After we got bit by it a couple times recently, I was thinking of
submitting a PR for ActiveRecord that would issue a warning if you
submit a hash containing the same key as both a symbol and a string to
any of the AR construction methods (create, new, update_attributes,
etc…) . As far as I can tell, the behavior when this happens in
undefined (and change between Rails 3 and 4 for example).
For example:
attr = { ‘a’ => 123, :a => 456 }
ARModel.create!(attr)
In Rails 3, you’ll get an object with the ‘a’ attributes set to
456, in Rails 4, you’ll get 123.
I think this kind of things is almost always unintentional and worth a
warning.
I’ll be happy to code this up and submit it if people think it would
be useful and accepted.
Please let me know your thoughts and feedback.
Thanks,
Andrew
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