63 lines
2.3 KiB
Python
63 lines
2.3 KiB
Python
from __future__ import unicode_literals
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import datetime
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from django.utils.timezone import is_aware, utc
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from django.utils.translation import ugettext, ungettext_lazy
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def timesince(d, now=None, reversed=False):
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"""
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Takes two datetime objects and returns the time between d and now
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as a nicely formatted string, e.g. "10 minutes". If d occurs after now,
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then "0 minutes" is returned.
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Units used are years, months, weeks, days, hours, and minutes.
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Seconds and microseconds are ignored. Up to two adjacent units will be
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displayed. For example, "2 weeks, 3 days" and "1 year, 3 months" are
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possible outputs, but "2 weeks, 3 hours" and "1 year, 5 days" are not.
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Adapted from http://blog.natbat.co.uk/archive/2003/Jun/14/time_since
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"""
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chunks = (
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(60 * 60 * 24 * 365, ungettext_lazy('%d year', '%d years')),
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(60 * 60 * 24 * 30, ungettext_lazy('%d month', '%d months')),
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(60 * 60 * 24 * 7, ungettext_lazy('%d week', '%d weeks')),
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(60 * 60 * 24, ungettext_lazy('%d day', '%d days')),
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(60 * 60, ungettext_lazy('%d hour', '%d hours')),
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(60, ungettext_lazy('%d minute', '%d minutes'))
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)
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# Convert datetime.date to datetime.datetime for comparison.
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if not isinstance(d, datetime.datetime):
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d = datetime.datetime(d.year, d.month, d.day)
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if now and not isinstance(now, datetime.datetime):
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now = datetime.datetime(now.year, now.month, now.day)
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if not now:
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now = datetime.datetime.now(utc if is_aware(d) else None)
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delta = (d - now) if reversed else (now - d)
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# ignore microseconds
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since = delta.days * 24 * 60 * 60 + delta.seconds
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if since <= 0:
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# d is in the future compared to now, stop processing.
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return ugettext('0 minutes')
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for i, (seconds, name) in enumerate(chunks):
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count = since // seconds
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if count != 0:
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break
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result = name % count
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if i + 1 < len(chunks):
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# Now get the second item
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seconds2, name2 = chunks[i + 1]
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count2 = (since - (seconds * count)) // seconds2
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if count2 != 0:
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result += ugettext(', ') + name2 % count2
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return result
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def timeuntil(d, now=None):
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"""
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Like timesince, but returns a string measuring the time until
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the given time.
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"""
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return timesince(d, now, reversed=True)
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