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# File 'lib/kanban_metrics/commands/cfd.rb', line 5
def execute(work_items, start = nil, end_ = nil)
chart_data = create_empty_chart_data_with_all_the_dates(work_items)
work_items.each do |work_item|
USED_ATTRIBUTES.each_with_index do |attribute, index|
chart_data.keys.select {|date| attribute_lg_date?(work_item, attribute, date)}.each do |entry|
chart_data[entry][index] += 1
end
end
end
start = earliest_date(work_items) if start.nil?
end_ = latest_date(work_items) if end_.nil?
chart_data.select! do |date, values|
start <= date && date <= end_
end
ChartDataHelper.sort(chart_data)
end
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