Class: MudratProjector::DateDiff::MonthCalculator

Inherits:
ComplexCalculator show all
Defined in:
lib/mudrat_projector/date_diff.rb

Instance Attribute Summary

Attributes inherited from ComplexCalculator

#first_unit

Attributes inherited from Calculator

#from, #to

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ComplexCalculator

#calculate, #initialize

Methods inherited from Calculator

#calculate

Constructor Details

This class inherits a constructor from MudratProjector::DateDiff::ComplexCalculator

Class Method Details

.advance(intervals, from: from) ⇒ Object 



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# File 'lib/mudrat_projector/date_diff.rb', line 158

def self.advance intervals, from: from
  if intervals < 1
    days_in_month = Date.new(from.year, from.month, -1).day
    days = intervals * days_in_month
    DayCalculator.advance days, from: from
  else
    intervals.times.inject from do |date, _| date.next_month; end
  end
end

Instance Method Details

#advance_one_unit(date) ⇒ Object 



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# File 'lib/mudrat_projector/date_diff.rb', line 150

def advance_one_unit date
  date.next_month
end

#fetch_unit(date) ⇒ Object 



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# File 'lib/mudrat_projector/date_diff.rb', line 145

def fetch_unit date
  start_of_month = Date.new(date.year, date.month)
  (start_of_month..(start_of_month.next_month - 1))
end

#rewind_one_unit(date) ⇒ Object 



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# File 'lib/mudrat_projector/date_diff.rb', line 154

def rewind_one_unit date
  date.prev_month
end