lib/fiscal_year.rb in fiscal_year-0.7.0 vs lib/fiscal_year.rb in fiscal_year-1.0.0

@@ -51,14 +51,11 @@
     def cross_year_months
       return [] if @config.start_month == 1
 
       rindex = months.rindex(1).to_i
 
-      m = months.slice(rindex, months.length)
-      raise StandardError if m.nil?
-
-      m
+      months.slice(rindex, months.length) || raise(StandardError)
     end
 
     # @return [Array(Array<Integer>, Array<Integer>)] the first half and the second half of the fiscal year.
     def halfs
       # @type self: singleton(FiscalYear)
@@ -107,8 +104,25 @@
       year = date.year
       month = date.month
       normalized_year = decrease_year_by_month(year, month)
 
       FiscalYear::Half.first_range_by(normalized_year).first..FiscalYear::Half.second_range_by(normalized_year).last
+    end
+
+    # start by 0.
+    #
+    # @see passed_month_count_by_month
+    # @param date [Date] the date
+    # @return [Integer] the passed month count from the beginning of the fiscal year.
+    def passed_month_count_by(date)
+      passed_month_count_by_month(date.month)
+    end
+
+    # start by 0.
+    #
+    # @param month [Integer] the month
+    # @return [Integer] the passed month count from the beginning of the fiscal year.
+    def passed_month_count_by_month(month)
+      months.find_index(month) || raise(StandardError)
     end
   end
 end