mybuddy/core/utils.py

36 lines
1.1 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.utils import timezone
def duration_string(duration, precision='s'):
"""Format hours, minutes and seconds as a human-friendly string (e.g. "2
hours, 25 minutes, 31 seconds") with precision to h = hours, m = minutes or
s = seconds.
"""
h, m, s = duration_parts(duration)
duration = ''
if h > 0:
duration = '{} hour{}'.format(h, 's' if h > 1 else '')
if m > 0 and precision != 'h':
duration += '{}{} minute{}'.format(
'' if duration is '' else ', ', m, 's' if m > 1 else '')
if s > 0 and precision != 'h' and precision != 'm':
duration += '{}{} second{}'.format(
'' if duration is '' else ', ', s, 's' if s > 1 else '')
return duration
def duration_parts(duration):
"""Get hours, minutes and seconds from a timedelta.
"""
if not isinstance(duration, timezone.timedelta):
raise TypeError('Duration provided must be a timedetla')
h, remainder = divmod(duration.seconds, 3600)
h += duration.days * 24
m, s = divmod(remainder, 60)
return h, m, s