Rails - May 2006 - ActiveRecord and cascade removing

Hi. Please help me how to make cascade delete for this 3 classes:

class Section < ActiveRecord:Base
  has_many :ad_bindings
  has_many: banners, :through => :ad_bindings
end

class AdBinding < ActiveRecord:Base
  belongs_to :banner
end

class Banner < ActiveRecord:Base

end

When I remove Banner, I need to remove AdBinding also, but it still
stored in database. Where I wrong?

Try

belongs_to :banner, :dependent => true

This says that the child row cannot exist without the row in the parent 
table, and will do a cascading delete.

Ken

zven wrote:
> Hi. Please help me how to make cascade delete for this 3 classes:
>
> class Section < ActiveRecord:Base
>   has_many :ad_bindings
>   has_many: banners, :through => :ad_bindings
> end
>
> class AdBinding < ActiveRecord:Base
>   belongs_to :banner
> end
>
> class Banner < ActiveRecord:Base
>
> end
>
> When I remove Banner, I need to remove AdBinding also, but it still
> stored in database. Where I wrong?
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>

On Sat, 2006-05-13 at 21:03 +0200, Kenneth Liu wrote:
> Try
> 
> belongs_to :banner, :dependent => true
> 
> This says that the child row cannot exist without the row in the parent 
> table, and will do a cascading delete.
> 
> Ken
> 
It''s not helpful, I still have rows in ''ad_bindings''
table (

Ok. I got:

class Banner...
  has_many :ad_bindings, :dependent => :destroy
end