models.py 文件源码

def duration(self):
        duration = self.end - self.begin
        seconds = duration.total_seconds()
        hours = int(seconds // 3600)
        minutes = int((seconds % 3600) // 60)
        return '{} day{} {} hour{} {} minute{}'.format(
            duration.days,
            pluralize(duration.days), hours,
            pluralize(hours), minutes, pluralize(minutes))