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Mauro

2011-Jul-01 10:46 UTC

Edit a model with has_many and at the same time adding a new object associated.

I have Shop has_many :documents and Documen belongs_to :shop.
When I create a new shop I use accept_nested_attributes_for :documents
in the model and fields_for in the form, so I can create a new shop
and at the same time a document associated to the shop.
I want to add a new document associated to the shop also when I edit
the shop, at the same time I edit the shop.
If I call the edit action for shop, in the form I have the fields for
one of the documents associated with their values but I want to add a
new document.
There is a way to do this?

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Chirag Singhal

2011-Jul-01 10:51 UTC

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Re: Edit a model with has_many and at the same time adding a new object associated.

Checkout these two railscasts, they should get you started in right
direction:
http://railscasts.com/episodes/196-nested-model-form-part-1
http://railscasts.com/episodes/197-nested-model-form-part-2


Chirag
http://sumeruonrails.com



On Fri, Jul 1, 2011 at 4:16 PM, Mauro
<mrsanna1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> I have Shop has_many :documents and Documen belongs_to :shop.
> When I create a new shop I use accept_nested_attributes_for :documents
> in the model and fields_for in the form, so I can create a new shop
> and at the same time a document associated to the shop.
> I want to add a new document associated to the shop also when I edit
> the shop, at the same time I edit the shop.
> If I call the edit action for shop, in the form I have the fields for
> one of the documents associated with their values but I want to add a
> new document.
> There is a way to do this?
>
> --
> 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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>
>
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Mauro

2011-Jul-01 19:59 UTC

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Re: Edit a model with has_many and at the same time adding a new object associated.

On 1 July 2011 12:51, Chirag Singhal
<chirag.singhal-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Checkout these two railscasts, they should get you started in right
> direction:
> http://railscasts.com/episodes/196-nested-model-form-part-1
> http://railscasts.com/episodes/197-nested-model-form-part-2
I''ve found that is more simpler than I''ve thought.

Models are:

Shop has_many :document, Document belongs_to :shop.

For edit action I''ve done:

@shop = Shop.find(params[:id])
@document = @shop.documents.new

and in the form I''ve done:

fields_for @document.

Now I can modify an existing shop and at the same time add a document.
Do you think it''s all correct?

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vinny

2011-Jul-01 20:10 UTC

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Re: Edit a model with has_many and at the same time adding a new object associated.

I''m assuming this is rails 3.

For your edit action you don''t need the @document variable.  You can
refer
to all of your documents via the :has_many association you created in the 
model so @shop.documents will suffice.

Your fields_for will need to look something like this
fields_for :documents, @shop.documents |ff_item|
  stuff for whatever you need (text area''s checkboxes etc.)
end

If you want to access your data from your document in the fields_for loop, 
you can do "ff_item.object.DOCUMENT_METHOD".
ff_item.object will be an instance of your document so you can set the 
default values for your html items.

Vinny
@agnellvj
> I''ve found that is more simpler than I''ve thought.
>
> Models are:
>
> Shop has_many :document, Document belongs_to :shop.
>
> For edit action I''ve done:
>
> @shop = Shop.find(params[:id])
> @document = @shop.documents.new
>
> and in the form I''ve done:
>
> fields_for @document.
>
> Now I can modify an existing shop and at the same time add a document.
> Do you think it''s all correct?
>
>
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Mauro

2011-Jul-02 11:24 UTC

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Re: Edit a model with has_many and at the same time adding a new object associated.

On 1 July 2011 22:10, vinny
<agnellvj-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I''m assuming this is rails 3.
> For your edit action you don''t need the @document variable.  You
can refer
> to all of your documents via the :has_many association you created in the
> model so @shop.documents will suffice.
The problem is that I want to add a new document when I am in the edit action.
In the form for edit I have all shop fields with their values and also
the document fields with their values.
I want the document fields blank so that I can insert new values and
add a document for the shop.

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Rails - Jul 2011 - Edit a model with has_many and at the same time adding a new object associated.

Edit a model with has_many and at the same time adding a new object associated.

Re: Edit a model with has_many and at the same time adding a new object associated.

Re: Edit a model with has_many and at the same time adding a new object associated.

Re: Edit a model with has_many and at the same time adding a new object associated.

Re: Edit a model with has_many and at the same time adding a new object associated.