accept_nested_attributes_for in Rails 2.3.5 and Ruby 1.9.1

Has accept_nested_attributes_for already works with Rails 2.3.5 and Ruby 1.9.1???开发者_如何学运维?

I keep getting this error

undefined method accept_nested_attributes_for' for #<Class:0x00000108da2140>

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owh yeah should be accepts_nested_attributes_for (with 's')

Someone should clean up those Google searches!