Forum: Ruby on Rails collection_select returning multiple values

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Rúben Cabaço (Guest)
on 2006-04-20 23:55
(Received via mailing list)

Is is possible to make collection_select return multiple values? If yes,
can it be done?

IÂ?ve tried:

<%= collection_select("group[]", "id", @groups, "id", "name",
=> true}) %>

Leading to:

You have a nil object when you didn't expect it!

You might have expected an instance of ActiveRecord::Base.

The error occured while evaluating nil.id_before_type_cast

The @groups is Group.find(:all).

Can anyone help?

Thanks in advance,

Rúben Cabaço
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