debian-mirror-gitlab/app/models/concerns/redis_cacheable.rb
2018-03-17 18:26:18 +05:30

41 lines
984 B
Ruby

module RedisCacheable
extend ActiveSupport::Concern
include Gitlab::Utils::StrongMemoize
CACHED_ATTRIBUTES_EXPIRY_TIME = 24.hours
class_methods do
def cached_attr_reader(*attributes)
attributes.each do |attribute|
define_method("#{attribute}") do
cached_attribute(attribute) || read_attribute(attribute)
end
end
end
end
def cached_attribute(attribute)
(cached_attributes || {})[attribute]
end
def cache_attributes(values)
Gitlab::Redis::SharedState.with do |redis|
redis.set(cache_attribute_key, values.to_json, ex: CACHED_ATTRIBUTES_EXPIRY_TIME)
end
end
private
def cache_attribute_key
"cache:#{self.class.name}:#{self.id}:attributes"
end
def cached_attributes
strong_memoize(:cached_attributes) do
Gitlab::Redis::SharedState.with do |redis|
data = redis.get(cache_attribute_key)
JSON.parse(data, symbolize_names: true) if data
end
end
end
end