How can I delete child objects when the parent is deleted in rails?
model a:
has_many :b, :dependent => :delete_all
model b:
belongs_to :a
belongs_to :c
model c:
has_many :b
When I delete an a, I would also like to have children b's deleted so that they get removed from any c's that may reference them. However, the above isn't working. I'd appreciate any help.
Answer
Like so:
class Widgets < ActiveRecord::Base
has_many :whatevers, :dependent => :destroy
end
Update
Your recent comment indicates you are using the delete() method to delete your objects. This will not use the callbacks. Please read the manual for specifics.