ruby on rails 4 - Cascading multiple models -

i'm deleting place , it's cascading rows of placeupload, cascade rows of match , tagcostumer while deleting place. how can that?

class place < activerecord::base     has_many :place_uploads end  class placeupload < activerecord::base     belongs_to :place     has_many :matches     has_many :tags_customers end  class tagscustomer < activerecord::base     belongs_to :place_upload     belongs_to :tag end  class match < activerecord::base     belongs_to :place_upload     belongs_to :customer end 

the solution use destroy , create callback automatically deep cascading.

class place < activerecord::base      before_destroy :delete_children_objects      has_many :place_uploads, :dependent => :destroy      protected          def delete_children_objects             @places = placeupload.where(place_id: id)             @places.each |place|                 tagscustomer.where(place_upload_id: place.id).destroy_all                 match.where(place_upload_id: place.id).destroy_all             end         end end