Rails - Jul 2011 - 3 models in a form.

Hello,

class Customer < ActiveRecord::Base
 has_many :deliveries

class Delivery < ActiveRecord::Base
 has_many :delivery_items
 has_many :products, :through => :delivery_items
 belongs_to :customer

class DeliveryItem < ActiveRecord::Base
 belongs_to :delivery
 belongs_to :product

I create a new delivery for customer x:

= simple_form_for @customer do |f|
 = f.simple_fields_for :deliveries do |deliveries_f|
   .block
     .column.span-12
       = deliveries_f.association :products, :multiple => true,
:selected => @products_selected_id,
                                  :input_html => { :title => "-
Select product -" }, :label => false
       = deliveries_f.input :notes


DeliveryItem has the extra attribute quantity.
In this form I have to set a quantity DeliveryItem attribute so that I
create a Delivery for customer x, associate one or more Product and
for a product set the quantity.
How can I do in the form?

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On 25 July 2011 10:21, Mauro
<mrsanna1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hello,
>
> class Customer < ActiveRecord::Base
>  has_many :deliveries
>
> class Delivery < ActiveRecord::Base
>  has_many :delivery_items
>  has_many :products, :through => :delivery_items
>  belongs_to :customer
>
> class DeliveryItem < ActiveRecord::Base
>  belongs_to :delivery
>  belongs_to :product
>
> I create a new delivery for customer x:
>
> = simple_form_for @customer do |f|
>  = f.simple_fields_for :deliveries do |deliveries_f|
>   .block
>     .column.span-12
>       = deliveries_f.association :products, :multiple => true,
> :selected => @products_selected_id,
>                                  :input_html => { :title => "-
> Select product -" }, :label => false
>       = deliveries_f.input :notes
>
>
> DeliveryItem has the extra attribute quantity.
> In this form I have to set a quantity DeliveryItem attribute so that I
> create a Delivery for customer x, associate one or more Product and
> for a product set the quantity.
> How can I do in the form?
>
Any advice?

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