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https://github.com/redmine/redmine.git
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84 lines
2.6 KiB
Ruby
84 lines
2.6 KiB
Ruby
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# frozen_string_literal: true
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# Redmine - project management software
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# Copyright (C) 2006-2021 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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module Redmine
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module Utils
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module DateCalculation
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# Returns the number of working days between from and to
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def working_days(from, to)
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days = (to - from).to_i
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if days > 0
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weeks = days / 7
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result = weeks * (7 - non_working_week_days.size)
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days_left = days - weeks * 7
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start_cwday = from.cwday
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days_left.times do |i|
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unless non_working_week_days.include?(((start_cwday + i - 1) % 7) + 1)
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result += 1
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end
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end
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result
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else
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0
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end
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end
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# Adds working days to the given date
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def add_working_days(date, working_days)
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if working_days > 0
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weeks = working_days / (7 - non_working_week_days.size)
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result = weeks * 7
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days_left = working_days - weeks * (7 - non_working_week_days.size)
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cwday = date.cwday
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while days_left > 0
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cwday += 1
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unless non_working_week_days.include?(((cwday - 1) % 7) + 1)
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days_left -= 1
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end
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result += 1
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end
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next_working_date(date + result)
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else
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date
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end
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end
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# Returns the date of the first day on or after the given date that is a working day
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def next_working_date(date)
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cwday = date.cwday
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days = 0
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days += 1 while non_working_week_days.include?(((cwday + days - 1) % 7) + 1)
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date + days
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end
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# Returns the index of non working week days (1=monday, 7=sunday)
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def non_working_week_days
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@non_working_week_days ||= begin
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days = Setting.non_working_week_days
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if days.is_a?(Array) && days.size < 7
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days.map(&:to_i)
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else
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[]
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end
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end
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end
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end
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end
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end
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