Using dependent: :destroy isn't working on rails

Question

I have a table Bmp with these associations

class Bmp < ActiveRecord::Base
  #associations
     has_many :subareas, dependent: :destroy
     belongs_to :scenario

and another table Subareas

class Subarea < ActiveRecord::Base
  #associations
      belongs_to :scenarios
      belongs_to :soil
      belongs_to :bmp

however, when I try to delete a bmp, it should delete my subarea as well, but it is not doing so.

  def destroy
    @bmp = Bmp.find(params[:id])
    @bmp.destroy

I don't see where I've messed up, any ideas are greatly appreciated!

can you post a dump of your server's log when you try to destroy something — plombix, Jun 21 '16 at 16:22

score 0 · Answer 1 · answered Jun 21 '16 at 16:31

Your subareas will still belongs to scenarios !! If you delete them associations will be broken between them .

This will maintain relations between subareas and scenarios but will put bmp "on the way " between them and will allow "chain destroy".

1 Answers1