47 lines
1.2 KiB
Ruby
47 lines
1.2 KiB
Ruby
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# For tracking and calculating timespans/time intervals
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# Relies on activesupport
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Timespan = Struct.new(:interval, :time_unit) do
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Units = ['week', 'day', 'month', 'year']
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TimeUnits = {
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'1_week' => 1.week.ago,
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'2_weeks' => 2.weeks.ago,
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'1_month' => 1.month.ago,
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'3_months' => 3.months.ago,
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'6_months' => 6.months.ago,
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'1_year' => 1.year.ago,
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'2_years' => 2.years.ago
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}
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# Test if end_date is past start_date by timespan
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# eg: later_than_by?(Jun 13th, Jul 14th, 1.month) -> true
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# Special case:
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# later_than_by?(Jan 31st, Feb 28th, 1.month) -> true
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def self.later_than_by?(start_date, end_date, timespan)
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return (start_date + timespan) <= end_date
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end
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# Given an Integer (frequency) and a String (time unit),
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# return the timespan object (ie. number of seconds) constituting the timespan
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# timespan(1, 'minute') -> 60
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# timespan(1, 'month') -> 2592000
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def self.create(interval, time_unit)
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raise(ArgumentError, "time_unit must be one of: #{Units}") unless Units.include?(time_unit)
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return interval.send(time_unit.to_sym)
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end
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def self.in_future?(datetime)
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datetime > Time.current
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end
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def self.date_now_or_in_future?(date)
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date >= Date.today
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end
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def self.in_past?(date)
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date < Time.current
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end
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end
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