expand_hierarchy_for_child

in app/models/concerns/group_descendant.rb [36:70]

• 29 lines of code
• 13 McCabe index (conditional complexity)

  def expand_hierarchy_for_child(child, hierarchy, hierarchy_top, preloaded)
    parent = hierarchy_top if hierarchy_top && child.parent_id == hierarchy_top.id
    parent ||= preloaded.detect { |possible_parent| possible_parent.is_a?(Group) && possible_parent.id == child.parent_id }

    if parent.nil? && !child.parent_id.nil?
      parent = child.parent

      exception = ArgumentError.new <<~MSG
        Parent was not preloaded for child when rendering group hierarchy.
        This error is not user facing, but causes a +1 query.
      MSG
      extras = {
        parent: parent.inspect,
        child: child.inspect,
        preloaded: preloaded.map(&:full_path),
        issue_url: 'https://gitlab.com/gitlab-org/gitlab-foss/issues/49404'
      }

      Gitlab::ErrorTracking.track_and_raise_for_dev_exception(exception, extras)
    end

    if parent.nil? && hierarchy_top.present?
      raise ArgumentError.new(_('specified top is not part of the tree'))
    end

    if parent && parent != hierarchy_top
      expand_hierarchy_for_child(parent,
                                 { parent => hierarchy },
                                 hierarchy_top,
                                 preloaded)
    else
      hierarchy
    end
  end