2018-07-16 16:31:01 +00:00
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# frozen_string_literal: true
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2018-02-06 00:10:58 +00:00
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module Groups
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class TransferService < Groups::BaseService
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ERROR_MESSAGES = {
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database_not_supported: 'Database is not supported.',
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namespace_with_same_path: 'The parent group already has a subgroup with the same path.',
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group_is_already_root: 'Group is already a root group.',
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same_parent_as_current: 'Group is already associated to the parent group.',
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invalid_policies: "You don't have enough permissions."
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}.freeze
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TransferError = Class.new(StandardError)
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attr_reader :error
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def initialize(group, user, params = {})
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super
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@error = nil
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end
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def execute(new_parent_group)
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@new_parent_group = new_parent_group
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ensure_allowed_transfer
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proceed_to_transfer
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rescue TransferError, ActiveRecord::RecordInvalid, Gitlab::UpdatePathError => e
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@group.errors.clear
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@error = "Transfer failed: " + e.message
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false
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end
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private
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def proceed_to_transfer
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Group.transaction do
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update_group_attributes
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end
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end
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def ensure_allowed_transfer
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raise_transfer_error(:group_is_already_root) if group_is_already_root?
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raise_transfer_error(:database_not_supported) unless Group.supports_nested_groups?
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raise_transfer_error(:same_parent_as_current) if same_parent?
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raise_transfer_error(:invalid_policies) unless valid_policies?
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raise_transfer_error(:namespace_with_same_path) if namespace_with_same_path?
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end
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def group_is_already_root?
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!@new_parent_group && !@group.has_parent?
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end
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def same_parent?
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@new_parent_group && @new_parent_group.id == @group.parent_id
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end
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def valid_policies?
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return false unless can?(current_user, :admin_group, @group)
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if @new_parent_group
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can?(current_user, :create_subgroup, @new_parent_group)
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else
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can?(current_user, :create_group)
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end
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end
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def namespace_with_same_path?
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Namespace.exists?(path: @group.path, parent: @new_parent_group)
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end
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def update_group_attributes
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if @new_parent_group && @new_parent_group.visibility_level < @group.visibility_level
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update_children_and_projects_visibility
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@group.visibility_level = @new_parent_group.visibility_level
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end
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@group.parent = @new_parent_group
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@group.save!
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end
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def update_children_and_projects_visibility
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descendants = @group.descendants.where("visibility_level > ?", @new_parent_group.visibility_level)
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Group
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.where(id: descendants.select(:id))
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.update_all(visibility_level: @new_parent_group.visibility_level)
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@group
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.all_projects
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.where("visibility_level > ?", @new_parent_group.visibility_level)
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.update_all(visibility_level: @new_parent_group.visibility_level)
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end
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def raise_transfer_error(message)
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raise TransferError, ERROR_MESSAGES[message]
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end
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end
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end
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