26 lines
531 B
Ruby
26 lines
531 B
Ruby
class CommonDataSingleton
|
|
include Singleton
|
|
|
|
def initialize
|
|
@common_data = nil
|
|
@last_usage = Time.now
|
|
end
|
|
|
|
def datasets(visualizations_api_url)
|
|
now = Time.now
|
|
if @common_data.nil? || (now - @last_usage > (cache_ttl * 60))
|
|
@common_data = CommonData.new(visualizations_api_url)
|
|
@last_usage = now
|
|
end
|
|
@common_data.datasets
|
|
end
|
|
|
|
def cache_ttl
|
|
ttl = 0
|
|
if Cartodb.config[:common_data].present?
|
|
ttl = Cartodb.config[:common_data]['cache_ttl'] || ttl
|
|
end
|
|
ttl
|
|
end
|
|
end
|