Hi! I'm new to Rails, but I'll try to help.
Maybe you could use the before_destroy callback: http://guides.rubyonrails.org/active_record_validations_callbacks.html#destroying-an-object Best Regards, Everaldo On Tue, Jul 26, 2011 at 10:35 AM, Piter Fcbk <[email protected]> wrote: > Given the models Country, State, City and Person as follows. > > class Country < ActiveRecord::Base > has_many :states > end > > class State < ActiveRecord::Base > belongs_to :country > has_many :cities > end > > class City < ActiveRecord::Base > belongs_to :state > has_many :people > end > > class Person < ActiveRecord::Base > belongs_to :city > end > > Is there any way that doesn't allow to delete a country if it has states? > (will do the same for states and cities, cities and persons). > Didn't saw nothing like that in the dependent option. > > Thanks in advance. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
