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# frozen_string_literal: true
module Users
class DestroyService
DestroyError = Class.new(StandardError)
attr_accessor :current_user
def initialize(current_user)
@current_user = current_user
end
# Synchronously destroys +user+
#
# The operation will fail if the user is the sole owner of any groups. To
# force the groups to be destroyed, pass `delete_solo_owned_groups: true` in
# +options+.
#
# The user's contributions will be migrated to a global ghost user. To
# force the contributions to be destroyed, pass `hard_delete: true` in
# +options+.
#
# `hard_delete: true` implies `delete_solo_owned_groups: true`. To perform
# a hard deletion without destroying solo-owned groups, pass
# `delete_solo_owned_groups: false, hard_delete: true` in +options+.
def execute(user, options = {})
delete_solo_owned_groups = options.fetch(:delete_solo_owned_groups, options[:hard_delete])
unless Ability.allowed?(current_user, :destroy_user, user) || options[:skip_authorization]
raise Gitlab::Access::AccessDeniedError, "#{current_user} tried to destroy user #{user}!"
end
if !delete_solo_owned_groups && user.solo_owned_groups.present?
user.errors.add(:base, 'You must transfer ownership or delete groups before you can remove user')
return user
end
# Calling all before/after_destroy hooks for the user because
# there is no dependent: destroy in the relationship. And the removal
# is done by a foreign_key. Otherwise they won't be called
user.members.find_each { |member| member.run_callbacks(:destroy) }
user.solo_owned_groups.each do |group|
Groups::DestroyService.new(group, current_user).execute
end
namespace = user.namespace
namespace.prepare_for_destroy
user.personal_projects.each do |project|
success = ::Projects::DestroyService.new(project, current_user).execute
raise DestroyError, "Project #{project.id} can't be deleted" unless success
end
yield(user) if block_given?
MigrateToGhostUserService.new(user).execute(hard_delete: options[:hard_delete])
response = Snippets::BulkDestroyService.new(current_user, user.snippets).execute(options)
raise DestroyError, response.message if response.error?
# Rails attempts to load all related records into memory before
# destroying: https://github.com/rails/rails/issues/22510
# This ensures we delete records in batches.
user.destroy_dependent_associations_in_batches(exclude: [:snippets])
if Feature.enabled?(:nullify_in_batches_on_user_deletion, default_enabled: :yaml)
user.nullify_dependent_associations_in_batches
end
# Destroy the namespace after destroying the user since certain methods may depend on the namespace existing
user_data = user.destroy
namespace.destroy
user_data
end
end
end
Users::DestroyService.prepend_mod_with('Users::DestroyService')
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