72 lines
2.4 KiB
Ruby
72 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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module MergeRequests
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class UpdateAssigneesService < UpdateService
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# a stripped down service that only does what it must to update the
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# assignees, and knows that it does not have to check for other updates.
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# This saves a lot of queries for irrelevant things that cannot possibly
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# change in the execution of this service.
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def execute(merge_request)
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return merge_request unless current_user&.can?(:update_merge_request, merge_request)
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old_assignees = merge_request.assignees.to_a
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old_ids = old_assignees.map(&:id)
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new_ids = new_assignee_ids(merge_request)
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return merge_request if merge_request.errors.any?
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return merge_request if new_ids.size != update_attrs[:assignee_ids].size
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return merge_request if old_ids.to_set == new_ids.to_set # no-change
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attrs = update_attrs.merge(assignee_ids: new_ids)
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merge_request.update!(**attrs)
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bulk_update_assignees_state(merge_request, merge_request.assignees - old_assignees)
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# Defer the more expensive operations (handle_assignee_changes) to the background
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MergeRequests::HandleAssigneesChangeService
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.new(project: project, current_user: current_user)
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.async_execute(merge_request, old_assignees, execute_hooks: true)
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merge_request
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end
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private
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def new_assignee_ids(merge_request)
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# prime the cache - prevent N+1 lookup during authorization loop.
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user_ids = update_attrs[:assignee_ids]
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return [] if user_ids.empty?
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merge_request.project.team.max_member_access_for_user_ids(user_ids)
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User.id_in(user_ids).map do |user|
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if user.can?(:read_merge_request, merge_request)
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user.id
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else
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merge_request.errors.add(
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:assignees,
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"Cannot assign #{user.to_reference} to #{merge_request.to_reference}"
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)
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nil
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end
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end.compact
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end
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def assignee_ids
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params.fetch(:assignee_ids).reject { _1 == 0 }.first(1)
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end
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def params
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ps = super
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# allow either assignee_id or assignee_ids, preferring assignee_id if passed.
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{ assignee_ids: ps.key?(:assignee_id) ? Array.wrap(ps[:assignee_id]) : ps[:assignee_ids] }
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end
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def update_attrs
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@attrs ||= { updated_at: Time.current, updated_by: current_user, assignee_ids: assignee_ids }
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end
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end
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end
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MergeRequests::UpdateAssigneesService.prepend_mod_with('MergeRequests::UpdateAssigneesService')
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