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108 lines
1.8 KiB
Ruby
108 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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class Admin::Metrics::Measure::BaseMeasure
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CACHE_TTL = 5.minutes.freeze
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def self.with_params?
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false
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end
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attr_reader :loaded
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alias loaded? loaded
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def initialize(start_at, end_at, params)
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@start_at = start_at&.to_datetime
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@end_at = end_at&.to_datetime
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@params = params
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@loaded = false
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end
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def cache_key
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["metrics/measure/#{key}", @start_at, @end_at, canonicalized_params].join(';')
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end
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def key
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raise NotImplementedError
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end
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def unit
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nil
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end
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def total_in_time_range?
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true
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end
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def total
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load[:total]
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end
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def previous_total
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load[:previous_total]
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end
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def data
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load[:data]
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end
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def self.model_name
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self.class.name
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end
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def read_attribute_for_serialization(key)
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send(key) if respond_to?(key)
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end
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protected
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def load
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unless loaded?
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@values = Rails.cache.fetch(cache_key, expires_in: CACHE_TTL) { perform_queries }.with_indifferent_access
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@loaded = true
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end
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@values
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end
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def perform_queries
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{
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total: perform_total_query,
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previous_total: perform_previous_total_query,
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data: perform_data_query,
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}
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end
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def perform_total_query
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raise NotImplementedError
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end
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def perform_previous_total_query
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raise NotImplementedError
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end
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def perform_data_query
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raise NotImplementedError
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end
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def time_period
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(@start_at.to_date..@end_at.to_date)
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end
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def previous_time_period
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((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
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end
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def length_of_period
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@length_of_period ||= @end_at - @start_at
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end
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def params
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{}
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end
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def canonicalized_params
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params.to_h.to_a.sort_by { |k, _v| k.to_s }.map { |k, v| "#{k}=#{v}" }.join(';')
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end
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end
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