[BUG] dependent: :destroy destroys the related object

[ppascualv]

class TimeTable
  include Mongoid::Document

  belongs_to :account, class_name: 'Account', inverse_of: :time_tables
  belongs_to :company_account, class_name: 'Account', inverse_of: :company_time_table, optional: true
end

class Account
  include Mongoid::Document

  has_one :company_time_table, class_name: 'TimeTable', inverse_of: :company_account, dependent: :destroy, validate: false
  has_many :time_tables, class_name: 'TimeTable', inverse_of: :account, dependent: :destroy, validate: false
end

account = Account.create!
ex_time_table = TimeTable.create(account:, company_account: account)
new_time_table = TimeTable.create(account:)

account.company_time_table = new_time_table # this codes produce the deletion of the ex_time_table document

The dependent: :destroy from the company_time_table relation, produces the deletion of the object when is unassigned as company_time_table from the account.

This is completely unexpected, the dependent should only be affected when the account is destroyed.

[alexbevi]

Hi @ppascualv, and thank you for reporting this. I've opened MONGOID-5683 to investigate this further.

[alexbevi]

@ppascualv can you just verify which version of Mongoid you were using to reproduce this?

[ppascualv]

7.5