Rails - Aug 2005 - associated objects created with the same FORM....how about validations???

hi,

1/
i have a simple DB schema with 2 tables (for the moment)
    - the contacts table contains names and so on
    - the phones table contains the number and a contact_id field

2/
i run the scaffold generator both for contacts and phones...

class Contact < ActiveRecord::Base
  has_many :phones
  validates_presence_of :first_name, :last_name
end

class Phone < ActiveRecord::Base
  belongs_to :contact
  validates_presence_of :number
end

3/
in the new contact view i added a textfield with
name="contact[phone][][number]" because i want the user to be abble to
enter the first associated phone number right inside the contact
creation form.


in the controller i do get the phone number on form submiting....but
How can i launch the phone validation on that number from the contact
controller?
if the validation fails how can i make the redisplayed form to
highlight the phone number field?
 

am i clear?
is what i want to achieve possible?

thanks

olivier

On 8/6/05, olivier Hericord
<olivier.hericord.lists-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
<snip>
> 2/
> i run the scaffold generator both for contacts and phones...
> 
> class Contact < ActiveRecord::Base
>   has_many :phones
>   validates_presence_of :first_name, :last_name
> end
> 
> class Phone < ActiveRecord::Base
>   belongs_to :contact
>   validates_presence_of :number
> end
> in the controller i do get the phone number on form submiting....but
> How can i launch the phone validation on that number from the contact
> controller?
Have you tried: validates_associated?
Add ''validates_associated :phones'' to your Contact model. 
According
to the api docs this will ensure that ''phones'' is valid.  I
haven''t
tested this though.
> if the validation fails how can i make the redisplayed form to
> highlight the phone number field?
No idea.  Anyone?

Hope that helps,

F.

yes i tried validates_associated but i just want to know how to
redirect the generated error in case of phone validation fails to the
contact controller and then to the field that raises the error

On 8/7/05, Felix Ingram
<f.ingram.lists-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On 8/6/05, olivier Hericord
<olivier.hericord.lists-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> <snip>
> > 2/
> > i run the scaffold generator both for contacts and phones...
> >
> > class Contact < ActiveRecord::Base
> >   has_many :phones
> >   validates_presence_of :first_name, :last_name
> > end
> >
> > class Phone < ActiveRecord::Base
> >   belongs_to :contact
> >   validates_presence_of :number
> > end
> 
> > in the controller i do get the phone number on form submiting....but
> > How can i launch the phone validation on that number from the contact
> > controller?
> 
> Have you tried: validates_associated?
> Add ''validates_associated :phones'' to your Contact model.
According
> to the api docs this will ensure that ''phones'' is valid. 
I haven''t
> tested this though.
> 
> > if the validation fails how can i make the redisplayed form to
> > highlight the phone number field?
> 
> No idea.  Anyone?
> 
> Hope that helps,
> 
> F.
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