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Add warning

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1 parent 092b1d8 commit 7156d583814976eeee66eb50c710b786a4ba74cf @fcheung fcheung committed Dec 31, 2008
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  1. +4 −0 railties/doc/guides/source/form_helpers.txt
@@ -228,6 +228,10 @@ params[:person][:name]
The params[:person] hash is suitable for passing to `` or, if `@person` is an instance of Person, `@person.update_attributes`.
+You must pass the name of an instance variable, i.e. `:person` or `"person"` and not an actual instance of person.
Forms that deal with model attributes

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