Ruby on Rails: comparing dates error?

undefined method `<' for nil:NilClass

the line the error 开发者_JAVA技巧occurs on

@object.expires_at < Date.today

so.. how do I compare dates?

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I just upgraded to rails 2.3.8 from 2.3.4..

this fixed it

@object.expires_at < Date.today unless @object.expires_at.nil?