Module: Tricle::Aggregation

Extended by:
ActiveSupport::Concern
Included in:
Metric
Defined in:
lib/tricle/aggregation.rb

Instance Method Summary collapse

Instance Method Details

#periods_ago(period, n) ⇒ Object 



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# File 'lib/tricle/aggregation.rb', line 7

def periods_ago(period, n)
  case period
  when :day
    start_at = self.now.beginning_of_day.ago(n.days)
    end_at = start_at + 1.day
  when :week
    start_at = self.now.beginning_of_week.ago(n.weeks)
    end_at = start_at + 7.days
  when :month
    start_at = self.now.beginning_of_month.advance(months: -n)
    end_at = start_at.advance(months: 1)
  end

  self.size_for_range(start_at, end_at)
end

#range_average(period, past_num_durations) ⇒ Object 



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# File 'lib/tricle/aggregation.rb', line 30

def range_average(period, past_num_durations)
  values = self.range_values(period, past_num_durations)
  total = values.reduce(0, :+)
  total.to_f / past_num_durations
end

#range_values(period, num_durations) ⇒ Object 



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# File 'lib/tricle/aggregation.rb', line 23

def range_values(period, num_durations)
  range = num_durations.downto(1)
  range.map do |n|
    self.periods_ago(period, n)
  end
end