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# frozen_string_literal: true
module Groups
class CountService < BaseCountService
include Gitlab::Utils::StrongMemoize
VERSION = 1
CACHED_COUNT_THRESHOLD = 1000
EXPIRATION_TIME = 24.hours
attr_reader :group, :user
def initialize(group, user = nil)
@group = group
@user = user
end
def count
cached_count = Rails.cache.read(cache_key)
return cached_count unless cached_count.blank?
refresh_cache_over_threshold
end
def refresh_cache_over_threshold(key = nil)
key ||= cache_key
new_count = uncached_count
if new_count > CACHED_COUNT_THRESHOLD
update_cache_for_key(key) { new_count }
else
delete_cache
end
new_count
end
def cache_key(key_name = nil)
key_name ||= cache_key_name
['groups', "#{issuable_key}_count_service", VERSION, group.id, key_name]
end
private
def relation_for_count
raise NotImplementedError
end
def cache_options
super.merge({ expires_in: EXPIRATION_TIME })
end
def cache_key_name
raise NotImplementedError, 'cache_key_name must be implemented and return a String'
end
def issuable_key
raise NotImplementedError, 'issuable_key must be implemented and return a String'
end
end
end
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