dependent: :destroy for associated models

[rdetert]

I have a Document model associated with a Company. When I call @company.destroy, the Company record is lazy-deleted but the Documents are actually deleted.

class Company
  include Mongoid::Document
  include Mongoid::Paranoia
  has_many :documents, dependent: :destroy
end

class Document
  include Mongoid::Document
  include Mongoid::Paranoia
  belongs_to :company
end

[simi]

Thanks for suggestion @rdetert. It will be nice if you can add some failing test. Meanwhile I'll do research how another similar libraries are handling this.

[johnnyshields]

@rdetert I agree this needs to be looked into. I've also found a few cases where I think destroying paranoid docs with other paranoid docs relations can cause infinite recursion.

I've made some test models here which should help in writing specs:
https://github.com/simi/mongoid_paranoia/blob/master/spec/app/models/relations.rb

[abrisse]

has_many :documents, dependent: :destroy should work fine since all the models are instantiated first and then the #destroy is applied on each of them, so the entries will still be persisted in mongodb with a field deleted_at.

Nevertheless beware when using has_many :documents, dependent: :delete since the documents would in that case really be deleted since the delete_all is used in that case, which is not compliant with mongoid_paranoia