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由 Jamis Buck 提交于
be like a duck. Let's not rely on explicit classes, so we can pass proxy objects around and have them interpreted correctly by ActiveRecord's serialization routines git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5953 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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