Unable to use error_messages form helper with rails_datamapper.
Reported by PreciousBodilyFluids | December 2nd, 2009 @ 04:06 PM
While using Datamapper in a Rails 2.3 app, the error_messages helper wouldn't work with a DataMapper object:
undefined method count' for {}:Dictionary
I was able to fix it by defining:
class Dictionary
alias_method :count, :length end
Thanks to namelessjon in IRC.
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PreciousBodilyFluids