88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
from datetime import datetime
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from django.utils import timezone
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from django.utils.translation import ungettext, ugettext as _
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def pluralize_year(n):
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return ungettext(_('{num:.1f} year ago'), _('{num:.1f} years ago'), n)
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def pluralize_month(n):
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return ungettext(_('{num:.1f} month ago'), _('{num:.1f} months ago'), n)
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def pluralize_week(n):
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return ungettext(_('{num:.1f} week ago'), _('{num:.1f} weeks ago'), n)
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def pluralize_day(n):
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return ungettext(_('{num:.1f} day ago'), _('{num:.1f} days ago'), n)
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OLDER_CHUNKS = (
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(365.0, pluralize_year),
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(30.0, pluralize_month),
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(7.0, pluralize_week),
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)
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def _un(singular__plural, n=None):
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singular, plural = singular__plural
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return ungettext(singular, plural, n)
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def naturaldate(date, include_seconds=False):
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"""Convert datetime into a human natural date string."""
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if not date:
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return ''
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right_now = timezone.now()
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today = datetime(right_now.year, right_now.month,
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right_now.day, tzinfo=right_now.tzinfo)
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delta = right_now - date
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delta_midnight = today - date
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days = delta.days
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hours = int(round(delta.seconds / 3600, 0))
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minutes = delta.seconds / 60
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seconds = delta.seconds
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if days < 0:
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return _('just now')
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if days == 0:
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if hours == 0:
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if minutes > 0:
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minutes += float(seconds)/60
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return ungettext(
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_('{minutes:.1f} minute ago'),
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_('{minutes:.1f} minutes ago'), minutes
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).format(minutes=minutes)
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else:
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if include_seconds and seconds:
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return ungettext(
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_('{seconds} second ago'),
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_('{seconds} seconds ago'), seconds
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).format(seconds=seconds)
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return _('just now')
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else:
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hours += float(minutes)/60
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return ungettext(
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_('{hours:.1f} hour ago'), _('{hours:.1f} hours ago'), hours
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).format(hours=hours)
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if delta_midnight.days == 0:
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return _('yesterday at {time}').format(time=date.strftime('%H:%M'))
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count = 0
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for chunk, pluralizefun in OLDER_CHUNKS:
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if days < 7.0:
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count = days + float(hours)/24
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fmt = pluralize_day(count)
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return fmt.format(num=count)
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if days >= chunk:
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count = (delta_midnight.days + 1) / chunk
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fmt = pluralizefun(count)
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return fmt.format(num=count)
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