You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.5 KiB
67 lines
2.5 KiB
import datetime |
|
import time |
|
|
|
from django.utils.tzinfo import LocalTimezone |
|
from django.utils.translation import ungettext, ugettext |
|
|
|
def timesince(d, now=None): |
|
""" |
|
Takes two datetime objects and returns the time between d and now |
|
as a nicely formatted string, e.g. "10 minutes". If d occurs after now, |
|
then "0 minutes" is returned. |
|
|
|
Units used are years, months, weeks, days, hours, and minutes. |
|
Seconds and microseconds are ignored. Up to two adjacent units will be |
|
displayed. For example, "2 weeks, 3 days" and "1 year, 3 months" are |
|
possible outputs, but "2 weeks, 3 hours" and "1 year, 5 days" are not. |
|
|
|
Adapted from http://blog.natbat.co.uk/archive/2003/Jun/14/time_since |
|
""" |
|
chunks = ( |
|
(60 * 60 * 24 * 365, lambda n: ungettext('year', 'years', n)), |
|
(60 * 60 * 24 * 30, lambda n: ungettext('month', 'months', n)), |
|
(60 * 60 * 24 * 7, lambda n : ungettext('week', 'weeks', n)), |
|
(60 * 60 * 24, lambda n : ungettext('day', 'days', n)), |
|
(60 * 60, lambda n: ungettext('hour', 'hours', n)), |
|
(60, lambda n: ungettext('minute', 'minutes', n)) |
|
) |
|
# Convert datetime.date to datetime.datetime for comparison |
|
if d.__class__ is not datetime.datetime: |
|
d = datetime.datetime(d.year, d.month, d.day) |
|
|
|
if not now: |
|
if d.tzinfo: |
|
now = datetime.datetime.now(LocalTimezone(d)) |
|
else: |
|
now = datetime.datetime.now() |
|
|
|
# ignore microsecond part of 'd' since we removed it from 'now' |
|
delta = now - (d - datetime.timedelta(0, 0, d.microsecond)) |
|
since = delta.days * 24 * 60 * 60 + delta.seconds |
|
if since <= 0: |
|
# d is in the future compared to now, stop processing. |
|
return u'0 ' + ugettext('minutes') |
|
for i, (seconds, name) in enumerate(chunks): |
|
count = since // seconds |
|
if count != 0: |
|
break |
|
s = ugettext('%(number)d %(type)s') % {'number': count, 'type': name(count)} |
|
if i + 1 < len(chunks): |
|
# Now get the second item |
|
seconds2, name2 = chunks[i + 1] |
|
count2 = (since - (seconds * count)) // seconds2 |
|
if count2 != 0: |
|
s += ugettext(', %(number)d %(type)s') % {'number': count2, 'type': name2(count2)} |
|
return s |
|
|
|
def timeuntil(d, now=None): |
|
""" |
|
Like timesince, but returns a string measuring the time until |
|
the given time. |
|
""" |
|
if not now: |
|
if getattr(d, 'tzinfo', None): |
|
now = datetime.datetime.now(LocalTimezone(d)) |
|
else: |
|
now = datetime.datetime.now() |
|
return timesince(now, d)
|
|
|