How to validate with validates_associated

[Adam Akhtar-2]

Hi , i am facing strange problem i want to validate two models through
validates_associated,


class Cpanel::Banner < ActiveRecord::Base

  has_one :bannerimage
  validates_associated :bannerimage
  validates_presence_of :title
  validates_uniqueness_of :title
end


class Cpanel::Bannerimage < ActiveRecord::Base

  belongs_to :banner

  has_attachment    :content_type => :image,
         :storage => :file_system,
         :max_size => 10.megabytes,
         :min_size=>250.bytes,
         :resize_to => '320x200>',
         :processor => 'MiniMagick'

  validates_as_attachment
end

Here are two models , i am not getting only banner model validation but
not for bannerimage model .

Thanks .
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[Adam Akhtar-2]

Ok ! this should work !

But if not go for

In your banner model !

def validate
     errors.add_to_base "Where is file!" if
Bannerimage.find(self.id).blank?
end

Otherwise use Activerecord callbacks !

Glad to help !
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[Adam Akhtar-2]

def validate
  errors.add_to_base "Where is file!" if
Bannerimage.find(self.id).blank?
end

This is always true though i am attaching file ! I think i should use
call back or
proper use of validates_associated........

Please help !

Thanks !

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[Adam Akhtar-2]

Is any one have idea !
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[Adam Akhtar-2]

................
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[Felix Schäfer]

Am 09.07.2009 um 15:41 schrieb Ruby on Rails:

> ................


Please refrain from bumping so often, at the very best, it will annoy  
people who would be willing to help you...

Felix

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[Adam Akhtar-2]

Sorry , for that but i am seeking for help regarding
validates_associated
 !
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[E. Litwin]

I haven't used validates_associated before, but if you read the
documentation (api.rubyonrails.org), it says the following:

NOTE: This validation will not fail if the association hasn‘t been
assigned. If you want to ensure that the association is both present
and guaranteed to be valid, you also need to use
validates_presence_of.

Are you sure a bannerimage has been assigned to your banner object?

On Jul 9, 8:59 pm, Ruby on Rails <rails-mailing-l...@...>
wrote:
> Sorry , for that but i am seeking for help regarding
> validates_associated
>  !
> --
> Posted viahttp://www.ruby-forum.com/.
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[Adam Akhtar-2]

Thanks ,

I have banner_id in bannerimage table .

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[Adam Akhtar-2]

It would help if you would show test code which demonstrates the failing
validation.
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