debian-mirror-gitlab/app/finders/members_finder.rb

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# frozen_string_literal: true
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class MembersFinder
attr_reader :project, :current_user, :group
def initialize(project, current_user)
@project = project
@current_user = current_user
@group = project.group
end
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def execute(include_relations: [:inherited, :direct])
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project_members = project.project_members
project_members = project_members.non_invite unless can?(current_user, :admin_project, project)
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return project_members if include_relations == [:direct]
union_members = group_union_members(include_relations)
union_members << project_members if include_relations.include?(:direct)
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if union_members.any?
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distinct_union_of_members(union_members)
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else
project_members
end
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end
def can?(*args)
Ability.allowed?(*args)
end
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private
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def group_union_members(include_relations)
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[].tap do |members|
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members << direct_group_members(include_relations.include?(:descendants)) if group
members << project_invited_groups_members if include_relations.include?(:invited_groups_members)
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end
end
def direct_group_members(include_descendants)
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requested_relations = [:inherited, :direct]
requested_relations << :descendants if include_descendants
GroupMembersFinder.new(group).execute(include_relations: requested_relations).non_invite # rubocop: disable CodeReuse/Finder
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end
def project_invited_groups_members
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)
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
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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.
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<<~SQL
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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
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SQL
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end
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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
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end