OpenProject is the leading open source project management software.
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openproject/modules/backlogs/app/models/burndown.rb

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#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2020 the OpenProject GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# See docs/COPYRIGHT.rdoc for more details.
#++
class Burndown
def initialize(sprint, project, burn_direction = nil)
@sprint_id = sprint.id
make_date_series sprint
series_data = OpenProject::Backlogs::Burndown::SeriesRawData.new(project,
sprint,
points: ['story_points'])
series_data.collect_data
calculate_series series_data
determine_max
end
attr_reader :days
attr_reader :sprint_id
attr_reader :max
attr_reader :story_points
attr_reader :story_points_ideal
def series(_select = :active)
@available_series
end
private
def make_date_series(sprint)
@days = sprint.days
end
def calculate_series(series_data)
series_data.collect_names.each do |c|
# need to differentiate between hours and sp
make_series c.to_sym, series_data.unit_for(c), series_data[c].to_a.sort_by(&:first).map(&:last)
end
calculate_ideals(series_data)
end
def calculate_ideals(data)
(['story_points'] & data.collect_names).each do |ideal|
calculate_ideal(ideal, data.unit_for(ideal))
end
end
def calculate_ideal(name, unit)
max = send(name).first || 0.0
delta = max / (days.size - 1)
ideal = []
days.each_with_index do |_d, i|
ideal[i] = max - delta * i
end
make_series name.to_s + '_ideal', unit, ideal
end
def make_series(name, units, data)
@available_series ||= {}
s = OpenProject::Backlogs::Burndown::Series.new(data, name, units)
@available_series[name] = s
instance_variable_set("@#{name}", s)
end
def determine_max
@max = {
points: @available_series.values.select { |s| s.unit == :points }.flatten.compact.reject(&:nan?).max || 0.0,
hours: @available_series.values.select { |s| s.unit == :hours }.flatten.compact.reject(&:nan?).max || 0.0
}
end
def to_h(keys, values)
Hash[*keys.zip(values).flatten]
end
def workday_before(date = Date.today)
d = date - 1
# TODO: make weekday configurable
d = workday_before(d) unless d.wday > 0 and d.wday < 6
d
end
end