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94 lines
3.9 KiB
94 lines
3.9 KiB
"""
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Copyright (c) Django Software Foundation and individual contributors.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of Django nor the names of its contributors may be used
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to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""
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import datetime
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def ungettext(a,b,count):
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if count:
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return b
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return a
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def ugettext(a):
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return a
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def timesince(d, now=None):
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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, lambda n: ungettext('year', 'years', n)),
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(60 * 60 * 24 * 30, lambda n: ungettext('month', 'months', n)),
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(60 * 60 * 24 * 7, lambda n : ungettext('week', 'weeks', n)),
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(60 * 60 * 24, lambda n : ungettext('day', 'days', n)),
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(60 * 60, lambda n: ungettext('hour', 'hours', n)),
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(60, lambda n: ungettext('minute', 'minutes', n))
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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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if d.tzinfo:
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now = datetime.datetime.now(d.tzinfo)
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else:
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now = datetime.datetime.now()
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# ignore microsecond part of 'd' since we removed it from 'now'
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delta = now - (d - datetime.timedelta(0, 0, d.microsecond))
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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 '0 ' + ugettext('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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s = ugettext('%(number)d %(type)s') % {'number': count, 'type': 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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s += ugettext(', %(number)d %(type)s') % {'number': count2, 'type': name2(count2)}
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if s == '0 minute':
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s = '0 minutes'
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return s
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