Rails - Sep 2012 - Rails 3: create input field for each element of a collection (MongoID)

Hi all,

I have two models, Item and Bid

class Item
>   include Mongoid::Document
>   field :name, type: String
>   has_many :bids 
> end
> class Bid
>   include Mongoid::Document
>   include Mongoid::Timestamps::Created
>   field :bid, type: Float
>   belongs_to :item  
> end

In views/prices/index I would like to list all items in a table and for 
each item put a field next it in which people can enter a number. At the 
bottom of the form should be a submit button for all records.

How is this best achieved?
There''s plenty of code out there explaining how to add, for instance,
several
questions to one
survey<http://railscasts.com/episodes/196-nested-model-form-part-1>but I
couldn''t find an example that shows how to add one new record for
each of of an existing element of a collection. 

Thanks...

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