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# File 'lib/cacheable_attr.rb', line 10
def cacheable_attr(*attributes)
opts = { ttl: 60 }
opts = opts.merge(attributes.pop) if attributes.last.is_a?(Hash)
attributes.each do |attribute|
define_method attribute do
if !instance_variable_defined?("@#{attribute}_updated_at") || (opts[:ttl] != nil && Time.now >= instance_variable_get("@#{attribute}_updated_at") + opts[:ttl])
value = send("#{attribute}_uncached")
instance_variable_set("@#{attribute}", value)
instance_variable_set("@#{attribute}_updated_at", Time.now)
end
instance_variable_get("@#{attribute}")
end
end
end
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