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# frozen_string_literal: true
class MembersFinder
RELATIONS = %i(direct inherited descendants invited_groups).freeze
DEFAULT_RELATIONS = %i(direct inherited).freeze
# Params can be any of the following:
# sort: string
# search: string
attr_reader :params
def initialize(project, current_user, params: {})
@project = project
@group = project.group
@current_user = current_user
@params = params
end
def execute(include_relations: DEFAULT_RELATIONS)
members = find_members(include_relations)
filter_members(members)
end
def can?(*args)
Ability.allowed?(*args)
end
private
attr_reader :project, :current_user, :group
def find_members(include_relations)
project_members = project.project_members
if params[:active_without_invites_and_requests].present?
project_members = project_members.active_without_invites_and_requests
else
project_members = project_members.non_invite unless can?(current_user, :admin_project, project)
end
return project_members if include_relations == [:direct]
union_members = group_union_members(include_relations)
union_members << project_members if include_relations.include?(:direct)
return project_members unless union_members.any?
distinct_union_of_members(union_members)
end
def filter_members(members)
members = members.search(params[:search]) if params[:search].present?
members = members.sort_by_attribute(params[:sort]) if params[:sort].present?
members = members.owners_and_maintainers if params[:owners_and_maintainers].present?
members
end
def group_union_members(include_relations)
[].tap do |members|
members << direct_group_members(include_relations.include?(:descendants)) if group
members << project_invited_groups if include_relations.include?(:invited_groups)
end
end
def direct_group_members(include_descendants)
requested_relations = [:inherited, :direct]
requested_relations << :descendants if include_descendants
GroupMembersFinder.new(group).execute(include_relations: requested_relations).non_invite.non_minimal_access # rubocop: disable CodeReuse/Finder
end
def project_invited_groups
invited_groups_ids_including_ancestors = Gitlab::ObjectHierarchy
.new(project.invited_groups)
.base_and_ancestors
.public_or_visible_to_user(current_user)
.select(:id)
GroupMember.with_source_id(invited_groups_ids_including_ancestors).non_minimal_access
end
def distinct_union_of_members(union_members)
union = Gitlab::SQL::Union.new(union_members, remove_duplicates: false) # rubocop: disable Gitlab/Union
sql = distinct_on(union)
Member.includes(:user).from([Arel.sql("(#{sql}) AS #{Member.table_name}")]) # rubocop: disable CodeReuse/ActiveRecord
end
def distinct_on(union)
# We're interested in a list of members without duplicates by user_id.
# We prefer project members over group members, project members should go first.
<<~SQL
SELECT DISTINCT ON (user_id, invite_email) #{member_columns}
FROM (#{union.to_sql}) AS #{member_union_table}
LEFT JOIN users on users.id = member_union.user_id
LEFT JOIN project_authorizations on project_authorizations.user_id = users.id
AND
project_authorizations.project_id = #{project.id}
ORDER BY user_id,
invite_email,
CASE
WHEN type = 'ProjectMember' THEN 1
WHEN type = 'GroupMember' THEN 2
ELSE 3
END
SQL
end
def member_union_table
'member_union'
end
def member_columns
Member.column_names.map do |column_name|
# fallback to members.access_level when project_authorizations.access_level is missing
next "COALESCE(#{ProjectAuthorization.table_name}.access_level, #{member_union_table}.access_level) access_level" if column_name == 'access_level'
"#{member_union_table}.#{column_name}"
end.join(',')
end
end
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