def parse_datetime(string, rebase=True):
"""Parses a string into a datetime object. Per default a conversion
from the blog timezone to UTC is performed but returned as naive
datetime object (that is tzinfo being None). If rebasing is disabled
the string is expected in UTC.
The return value is **always** a naive datetime object in UTC. This
function should be considered of a lenient counterpart of
`format_system_datetime`.
"""
from datetime import datetime
from time import strptime
from kay.utils import to_utc
# shortcut: string as None or "now" or the current locale's
# equivalent returns the current timestamp.
if string is None or string.lower() in ('now', _('now')):
return datetime.utcnow().replace(microsecond=0)
def convert(format):
"""Helper that parses the string and convers the timezone."""
rv = datetime(*strptime(string, format)[:7])
if rebase:
rv = to_utc(rv)
return rv.replace(microsecond=0)
# first of all try the following format because this is the format
# Texpress will output by default for any date time string in the
# administration panel.
try:
return convert(u'%Y-%m-%d %H:%M')
except ValueError:
pass
# no go with time only, and current day
for fmt in TIME_FORMATS:
try:
val = convert(fmt)
except ValueError:
continue
return to_utc(datetime.utcnow().replace(hour=val.hour,
minute=val.minute,
second=val.second,
microsecond=0))
# no try various types of date + time strings
def combined():
for t_fmt in TIME_FORMATS:
for d_fmt in DATE_FORMATS:
yield t_fmt + ' ' + d_fmt
yield d_fmt + ' ' + t_fmt
for fmt in combined():
try:
return convert(fmt)
except ValueError:
pass
raise ValueError('invalid date format')
def parse_datetime(string, rebase=True):
"""Parses a string into a datetime object. Per default a conversion
from the blog timezone to UTC is performed but returned as naive
datetime object (that is tzinfo being None). If rebasing is disabled
the string is expected in UTC.
The return value is **always** a naive datetime object in UTC. This
function should be considered of a lenient counterpart of
`format_system_datetime`.
"""
from datetime import datetime
from time import strptime
from kay.utils import to_utc
# shortcut: string as None or "now" or the current locale's
# equivalent returns the current timestamp.
if string is None or string.lower() in ('now', _('now')):
return datetime.utcnow().replace(microsecond=0)
def convert(format):
"""Helper that parses the string and convers the timezone."""
rv = datetime(*strptime(string, format)[:7])
if rebase:
rv = to_utc(rv)
return rv.replace(microsecond=0)
# first of all try the following format because this is the format
# Texpress will output by default for any date time string in the
# administration panel.
try:
return convert(u'%Y-%m-%d %H:%M')
except ValueError:
pass
# no go with time only, and current day
for fmt in TIME_FORMATS:
try:
val = convert(fmt)
except ValueError:
continue
return to_utc(datetime.utcnow().replace(hour=val.hour,
minute=val.minute, second=val.second, microsecond=0))
# no try various types of date + time strings
def combined():
for t_fmt in TIME_FORMATS:
for d_fmt in DATE_FORMATS:
yield t_fmt + ' ' + d_fmt
yield d_fmt + ' ' + t_fmt
for fmt in combined():
try:
return convert(fmt)
except ValueError:
pass
raise ValueError('invalid date format')
def convert(format):
"""Helper that parses the string and convers the timezone."""
rv = datetime(*strptime(string, format)[:7])
if rebase:
rv = to_utc(rv)
return rv.replace(microsecond=0)
def convert(format):
"""Helper that parses the string and convers the timezone."""
rv = datetime(*strptime(string, format)[:7])
if rebase:
rv = to_utc(rv)
return rv.replace(microsecond=0)