Explicit soft deletion for ActiveRecord via deleted_at + callbacks and optional default scope.
Not overwriting destroy or delete.
gem install soft_deletionrequire 'soft_deletion'
class User < ActiveRecord::Base
has_soft_deletion default_scope: true
before_soft_delete :validate_deletability # soft_delete stops if this returns false
after_soft_delete :send_deletion_emails
has_many :products
end
# soft delete them including all soft-deletable dependencies that are marked as :destroy, :delete_all, :nullify
user = User.first
user.products.count == 10
user.soft_delete!
user.deleted? # true
# use special with_deleted scope to find them ...
user.reload # ActiveRecord::RecordNotFound
User.with_deleted do
user.reload # there it is ...
user.products.count == 0
end
# Do NOT use on assocations: Account.first.users.with_deleted {
# soft undelete them all
user.soft_undelete!
user.products.count == 10
# soft delete many
User.soft_delete_all!(1,2,3,4)- nullify should use update_all on has_many on soft_delete (performance)
- has_many :through should delete join associations on soft_delete
- cascading soft_deletes should use the same timestamp for easy reverts
Zendesk
michael@grosser.it
License: MIT
