Rails - Sep 2010 - Adding a selected checkbox to a new nested model without polluting the model

Context:
I have a GoodsReturn model with many ReturnedItem. For the new view, I
create a new GoodsReturn with many new ReturnedItems from a sale (and
its SoldItems).
Problem:
I want to have a Add/Selected checkbox with which the user can pick
the items he wants to return. I know I could use a ''selected''
virtual
attribute but I don''t want to pollute my model just for this. In fact,
there is something that does exactly the opposite that I want,
the :_destroy:
<%= i_f.check_box :_destroy %>
I would like exactly the opposite, :_select.

Anybody has figured this out before?

Thanks guys,
Gam

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sure is simple, i will tell you what i think you are trying to say and you
can confirm it,
you have a list of items, and you want  the user to be able to make a
selection and remove them with checkboxes?
is that it?



On Wed, Sep 8, 2010 at 1:57 AM, gamov
<gamaudruz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Context:
> I have a GoodsReturn model with many ReturnedItem. For the new view, I
> create a new GoodsReturn with many new ReturnedItems from a sale (and
> its SoldItems).
> Problem:
> I want to have a Add/Selected checkbox with which the user can pick
> the items he wants to return. I know I could use a
''selected'' virtual
> attribute but I don''t want to pollute my model just for this. In
fact,
> there is something that does exactly the opposite that I want,
> the :_destroy:
> <%= i_f.check_box :_destroy %>
> I would like exactly the opposite, :_select.
>
> Anybody has figured this out before?
>
> Thanks guys,
> Gam
>
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Cool, radhames brito.

I have a list of items (all are new_record? = true) that are nested
into another new record. I want the user to make a selection and ADD
them with checkboxes, not remove. Those without checkboxes will just
be discarded and never created.

On Sep 8, 11:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> sure is simple, i will tell you what i think you are trying to say and you
> can confirm it,
> you have a list of items, and you want  the user to be able to make a
> selection and remove them with checkboxes?
> is that it?
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i think i saw something similar here

http://railscasts.com/episodes/196-nested-model-form-part-1

http://railscasts.com/episodes/197-nested-model-form-part-2

it has ajax and eveything

On Thu, Sep 9, 2010 at 12:38 AM, gamov
<gamaudruz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Cool, radhames brito.
>
> I have a list of items (all are new_record? = true) that are nested
> into another new record. I want the user to make a selection and ADD
> them with checkboxes, not remove. Those without checkboxes will just
> be discarded and never created.
>
> On Sep 8, 11:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > sure is simple, i will tell you what i think you are trying to say and
> you
> > can confirm it,
> > you have a list of items, and you want  the user to be able to make a
> > selection and remove them with checkboxes?
> > is that it?
>
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>
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Yeah, it''s quite similar, but the example uses the _destroy facility,
I want the opposite...
Anyway, I''m using a virtual attribute in the meantime...

On Sep 9, 7:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> i think i saw something similar here
>
> http://railscasts.com/episodes/196-nested-model-form-part-1
>
> http://railscasts.com/episodes/197-nested-model-form-part-2
>
> it has ajax and eveything
>
> On Thu, Sep 9, 2010 at 12:38 AM, gamov
<gamaud...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Cool, radhames brito.
>
> > I have a list of items (all are new_record? = true) that are nested
> > into another new record. I want the user to make a selection and ADD
> > them with checkboxes, not remove. Those without checkboxes will just
> > be discarded and never created.
>
> > On Sep 8, 11:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > sure is simple, i will tell you what i think you are trying to
say and
> > you
> > > can confirm it,
> > > you have a list of items, and you want  the user to be able to
make a
> > > selection and remove them with checkboxes?
> > > is that it?
>
> > --
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Groups
> > "Ruby on Rails: Talk" group.
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oh i see, you can handle the way the hash is passed so that you can loop
true the params and check for the selected one, then
only save the selected ones , i did something similar. You can handle the
hash by adding [] to the field names in the for helper.
for example addin    :value[whatever][]  associates the items and puts then
in an array in the params hash

On Wed, Sep 15, 2010 at 3:19 AM, gamov
<gamaudruz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Yeah, it''s quite similar, but the example uses the _destroy
facility,
> I want the opposite...
> Anyway, I''m using a virtual attribute in the meantime...
>
> On Sep 9, 7:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > i think i saw something similar here
> >
> > http://railscasts.com/episodes/196-nested-model-form-part-1
> >
> > http://railscasts.com/episodes/197-nested-model-form-part-2
> >
> > it has ajax and eveything
> >
> > On Thu, Sep 9, 2010 at 12:38 AM, gamov
<gamaud...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > Cool, radhames brito.
> >
> > > I have a list of items (all are new_record? = true) that are
nested
> > > into another new record. I want the user to make a selection and
ADD
> > > them with checkboxes, not remove. Those without checkboxes will
just
> > > be discarded and never created.
> >
> > > On Sep 8, 11:07 pm, radhames brito
<rbri...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > > sure is simple, i will tell you what i think you are trying
to say
> and
> > > you
> > > > can confirm it,
> > > > you have a list of items, and you want  the user to be able
to make a
> > > > selection and remove them with checkboxes?
> > > > is that it?
> >
> > > --
> > > You received this message because you are subscribed to the
Google
> Groups
> > > "Ruby on Rails: Talk" group.
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> > > .
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