22 lines
452 B
Ruby
22 lines
452 B
Ruby
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class CommonDataSingleton
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include Singleton
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def initialize
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@common_data = nil
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@last_usage = Time.now
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end
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def datasets(visualizations_api_url)
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now = Time.now
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if @common_data.nil? || (now - @last_usage > (cache_ttl * 60))
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@common_data = CommonData.new(visualizations_api_url)
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@last_usage = now
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end
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@common_data.datasets
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end
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def cache_ttl
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Cartodb.get_config(:common_data, 'cache_ttl') || 0
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end
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end
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