def naturaltime(value):
"""
For date and time values shows how many seconds, minutes or hours ago
compared to current timestamp returns representing string.
"""
if not isinstance(value, date): # datetime is a subclass of date
return value
now = datetime.now(utc if is_aware(value) else None)
if value < now:
delta = now - value
if delta.days != 0:
return pgettext(
'naturaltime', '%(delta)s ago'
) % {'delta': defaultfilters.timesince(value, now)}
elif delta.seconds == 0:
return _('now')
elif delta.seconds < 60:
return ungettext(
'a second ago', '%(count)s seconds ago', delta.seconds
) % {'count': delta.seconds}
elif delta.seconds // 60 < 60:
count = delta.seconds // 60
return ungettext(
'a minute ago', '%(count)s minutes ago', count
) % {'count': count}
else:
count = delta.seconds // 60 // 60
return ungettext(
'an hour ago', '%(count)s hours ago', count
) % {'count': count}
else:
delta = value - now
if delta.days != 0:
return pgettext(
'naturaltime', '%(delta)s from now'
) % {'delta': defaultfilters.timeuntil(value, now)}
elif delta.seconds == 0:
return _('now')
elif delta.seconds < 60:
return ungettext(
'a second from now', '%(count)s seconds from now', delta.seconds
) % {'count': delta.seconds}
elif delta.seconds // 60 < 60:
count = delta.seconds // 60
return ungettext(
'a minute from now', '%(count)s minutes from now', count
) % {'count': count}
else:
count = delta.seconds // 60 // 60
return ungettext(
'an hour from now', '%(count)s hours from now', count
) % {'count': count}
def add_truncation_text(self, text, truncate=None):
if truncate is None:
truncate = pgettext(
'String to return when truncating text',
'%(truncated_text)s...')
truncate = force_text(truncate)
if '%(truncated_text)s' in truncate:
return truncate % {'truncated_text': text}
# The truncation text didn't contain the %(truncated_text)s string
# replacement argument so just append it to the text.
if text.endswith(truncate):
# But don't append the truncation text if the current text already
# ends in this.
return text
return '%s%s' % (text, truncate)
def render(self, context):
if self.message_context:
message_context = self.message_context.resolve(context)
else:
message_context = None
tmp_context = {}
for var, val in self.extra_context.items():
tmp_context[var] = val.resolve(context)
# Update() works like a push(), so corresponding context.pop() is at
# the end of function
context.update(tmp_context)
singular, vars = self.render_token_list(self.singular)
# Escape all isolated '%'
singular = re.sub('%(?!\()', '%%', singular)
if self.plural and self.countervar and self.counter:
count = self.counter.resolve(context)
context[self.countervar] = count
plural, plural_vars = self.render_token_list(self.plural)
plural = re.sub('%(?!\()', '%%', plural)
if message_context:
result = translation.npgettext(message_context, singular,
plural, count)
else:
result = translation.ungettext(singular, plural, count)
vars.extend(plural_vars)
else:
if message_context:
result = translation.pgettext(message_context, singular)
else:
result = translation.ugettext(singular)
data = dict([(v, _render_value_in_context(context.get(v, ''), context)) for v in vars])
context.pop()
try:
result = result % data
except (KeyError, ValueError):
with translation.override(None):
result = self.render(context)
return result
