# View partial e input

**URL:** <https://www.ruby-forum.com/t/view-partial-e-input/93157>\
**Category:** IT\
**Created:** [April 28, 2007, 1:05pm UTC](https://www.ruby-forum.com/t/view-partial-e-input/93157 "2007-04-28T13:05:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![robyonrails](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b5ac83/32.png) [@robyonrails](https://www.ruby-forum.com/u/robyonrails)\
**Post date:** [April 28, 2007, 1:05pm UTC](https://www.ruby-forum.com/t/view-partial-e-input/93157/1 "2007-04-28T13:05:10Z")

</div>

La seguente riga di codice  
:: \<%= input “user”, “username” %\>

Produce il seguente errore  
:: NoMethodError in Home#index  
:: You have a nil object when you didn’t expect it!  
:: You might have expected an instance of ActiveRecord::Base.  
:: The error occurred while evaluating nil.column\_for\_attribute

questo codice è in app/views/components/\_loginbox.rhtml

Components non è un controller, che sia per questo che mi ritorna  
l’errore?  
Non trovo differenze del codice che ho scritto rispetto a  
[http://api.rubyonrails.org/classes/ActionView/Helpers/ActiveRecordHelper.html#M000565](http://api.rubyonrails.org/classes/ActionView/Helpers/ActiveRecordHelper.html#M000565)

Ciao