55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
import datetime, math, time
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from django.utils.tzinfo import LocalTimezone
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def timesince(d, now=None):
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"""
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Takes a datetime object, returns the time between then and now
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as a nicely formatted string, e.g "10 minutes"
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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, 'year'),
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(60 * 60 * 24 * 30, 'month'),
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(60 * 60 * 24, 'day'),
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(60 * 60, 'hour'),
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(60, 'minute')
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)
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if now:
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t = time.mktime(now)
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else:
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t = time.localtime()
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if d.tzinfo:
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tz = LocalTimezone()
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else:
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tz = None
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now = datetime.datetime(t[0], t[1], t[2], t[3], t[4], t[5], tzinfo=tz)
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delta = now - d
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since = delta.days * 24 * 60 * 60 + delta.seconds
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# Crazy iteration syntax because we need i to be current index
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for i, (seconds, name) in zip(range(len(chunks)), chunks):
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count = math.floor(since / seconds)
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if count != 0:
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break
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if count == 1:
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s = '1 %s' % name
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else:
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s = '%d %ss' % (count, name)
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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 = math.floor((since - (seconds * count)) / seconds2)
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if count2 != 0:
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if count2 == 1:
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s += ', 1 %s' % name2
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else:
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s += ', %d %ss' % (count2, name2)
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return s
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def timeuntil(d):
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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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now = datetime.datetime.now()
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return timesince(now, time.mktime(d.timetuple()))
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