debian-mirror-gitlab/app/finders/concerns/finder_with_group_hierarchy.rb

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2021-04-29 21:17:54 +05:30
# frozen_string_literal: true
# Module to include into finders to provide support for querying for
# objects up and down the group hierarchy. Extracted from LabelsFinder
#
# Supports params:
# :group
# :group_id
# :include_ancestor_groups
# :include_descendant_groups
module FinderWithGroupHierarchy
extend ActiveSupport::Concern
private
def item_ids
raise NotImplementedError
end
# Gets redacted array of group ids
# which can include the ancestors and descendants of the requested group.
def group_ids_for(group)
strong_memoize(:group_ids) do
groups = groups_to_include(group)
# Because we are sure that all groups are in the same hierarchy tree
# we can preset root group for all of them to optimize permission checks
Group.preset_root_ancestor_for(groups)
groups_user_can_read_items(groups).map(&:id)
end
end
def groups_to_include(group)
groups = [group]
groups += group.ancestors if include_ancestor_groups?
groups += group.descendants if include_descendant_groups?
groups
end
def include_ancestor_groups?
params[:include_ancestor_groups]
end
def include_descendant_groups?
params[:include_descendant_groups]
end
def group?
params[:group].present? || params[:group_id].present?
end
def group
strong_memoize(:group) { params[:group].presence || Group.find(params[:group_id]) }
end
def read_permission
raise NotImplementedError
end
def authorized_to_read_item?(item_parent)
return true if skip_authorization
Ability.allowed?(current_user, read_permission, item_parent)
end
def groups_user_can_read_items(groups)
DeclarativePolicy.user_scope do
groups.select { |group| authorized_to_read_item?(group) }
end
end
end