def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name)
python类get_format()的实例源码
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name, None)
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name)
def get_formats():
"""
Returns all formats strings required for i18n to work
"""
FORMAT_SETTINGS = (
'DATE_FORMAT', 'DATETIME_FORMAT', 'TIME_FORMAT',
'YEAR_MONTH_FORMAT', 'MONTH_DAY_FORMAT', 'SHORT_DATE_FORMAT',
'SHORT_DATETIME_FORMAT', 'FIRST_DAY_OF_WEEK', 'DECIMAL_SEPARATOR',
'THOUSAND_SEPARATOR', 'NUMBER_GROUPING',
'DATE_INPUT_FORMATS', 'TIME_INPUT_FORMATS', 'DATETIME_INPUT_FORMATS'
)
result = {}
for module in [settings] + get_format_modules(reverse=True):
for attr in FORMAT_SETTINGS:
result[attr] = get_format(attr)
formats = {}
for k, v in result.items():
if isinstance(v, (six.string_types, int)):
formats[k] = smart_text(v)
elif isinstance(v, (tuple, list)):
formats[k] = [smart_text(value) for value in v]
return formats
def format_value(self, value):
"""
Return a dict containing the year, month, and day of the current value.
Use dict instead of a datetime to allow invalid dates such as February
31 to display correctly.
"""
year, month, day = None, None, None
if isinstance(value, (datetime.date, datetime.datetime)):
year, month, day = value.year, value.month, value.day
elif isinstance(value, six.string_types):
if settings.USE_L10N:
try:
input_format = get_format('DATE_INPUT_FORMATS')[0]
d = datetime.datetime.strptime(force_str(value), input_format)
year, month, day = d.year, d.month, d.day
except ValueError:
pass
match = self.date_re.match(value)
if match:
year, month, day = [int(val) for val in match.groups()]
return {'year': year, 'month': month, 'day': day}
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name)
def render(self, name, value, attrs=None):
if attrs:
format = formats.get_format(
self.format_key
)[self.format_index]
attrs.update({
'class': attrs.get('class', '') + ' flatpickr',
'data-date-format': format.replace('%', '').replace('M', 'i'),
})
if hasattr(self, 'additional_attrs'):
attrs.update(self.additional_attrs)
if value:
attrs.update({
'data-default-date': self._format_value(value)
})
input = mark_safe(super().render(name, value, attrs))
return input
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name)
def strToDate(string):
correct_format = formats.get_format("SHORT_DATE_FORMAT")
correct_format = correct_format.split('/')
correct_format = ["%" + x for x in correct_format]
slash_format = '/'.join(correct_format)
hiphen_format = '-'.join(correct_format)
try:
search_date = datetime.strptime(string, slash_format)
search_date = timezone.make_aware(search_date, timezone.get_current_timezone())
except ValueError:
try:
search_date = datetime.strptime(string, hiphen_format)
search_date = timezone.make_aware(search_date, timezone.get_current_timezone())
except ValueError:
search_date = datetime.fromtimestamp(0)
return search_date
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name)
def value_from_datadict(self, data, files, name):
y = data.get(self.year_field % name)
m = data.get(self.month_field % name)
d = data.get(self.day_field % name)
if y == m == d == "0":
return None
if y and m and d:
if settings.USE_L10N:
input_format = get_format('DATE_INPUT_FORMATS')[0]
try:
date_value = datetime.date(int(y), int(m), int(d))
except ValueError:
return '%s-%s-%s' % (y, m, d)
else:
date_value = datetime_safe.new_date(date_value)
return date_value.strftime(input_format)
else:
return '%s-%s-%s' % (y, m, d)
return data.get(name, None)
def get_formats():
"""
Returns all formats strings required for i18n to work
"""
FORMAT_SETTINGS = (
'DATE_FORMAT', 'DATETIME_FORMAT', 'TIME_FORMAT',
'YEAR_MONTH_FORMAT', 'MONTH_DAY_FORMAT', 'SHORT_DATE_FORMAT',
'SHORT_DATETIME_FORMAT', 'FIRST_DAY_OF_WEEK', 'DECIMAL_SEPARATOR',
'THOUSAND_SEPARATOR', 'NUMBER_GROUPING',
'DATE_INPUT_FORMATS', 'TIME_INPUT_FORMATS', 'DATETIME_INPUT_FORMATS'
)
result = {}
for module in [settings] + get_format_modules(reverse=True):
for attr in FORMAT_SETTINGS:
result[attr] = get_format(attr)
formats = {}
for k, v in result.items():
if isinstance(v, (six.string_types, int)):
formats[k] = smart_text(v)
elif isinstance(v, (tuple, list)):
formats[k] = [smart_text(value) for value in v]
return formats
def _format_value(self, value):
return formats.localize_input(value,
self.format or formats.get_format(self.format_key)[0])
def _parse_date_fmt():
fmt = get_format('DATE_FORMAT')
escaped = False
for char in fmt:
if escaped:
escaped = False
elif char == '\\':
escaped = True
elif char in 'Yy':
yield 'year'
elif char in 'bEFMmNn':
yield 'month'
elif char in 'dj':
yield 'day'
def render(self, name, value, attrs=None):
try:
year_val, month_val, day_val = value.year, value.month, value.day
except AttributeError:
year_val = month_val = day_val = None
if isinstance(value, six.string_types):
if settings.USE_L10N:
try:
input_format = get_format('DATE_INPUT_FORMATS')[0]
v = datetime.datetime.strptime(force_str(value), input_format)
year_val, month_val, day_val = v.year, v.month, v.day
except ValueError:
pass
if year_val is None:
match = self.date_re.match(value)
if match:
year_val, month_val, day_val = [int(val) for val in match.groups()]
html = {}
choices = [(i, i) for i in self.years]
html['year'] = self.create_select(name, self.year_field, value, year_val, choices, self.year_none_value)
choices = list(self.months.items())
html['month'] = self.create_select(name, self.month_field, value, month_val, choices, self.month_none_value)
choices = [(i, i) for i in range(1, 32)]
html['day'] = self.create_select(name, self.day_field, value, day_val, choices, self.day_none_value)
output = []
for field in self._parse_date_fmt():
output.append(html[field])
return mark_safe('\n'.join(output))
def format_value(self, value):
return formats.localize_input(value, self.format or formats.get_format(self.format_key)[0])
def _parse_date_fmt():
fmt = get_format('DATE_FORMAT')
escaped = False
for char in fmt:
if escaped:
escaped = False
elif char == '\\':
escaped = True
elif char in 'Yy':
yield 'year'
elif char in 'bEFMmNn':
yield 'month'
elif char in 'dj':
yield 'day'
def render(self, name, value, attrs=None):
try:
year_val, month_val, day_val = value.year, value.month, value.day
except AttributeError:
year_val = month_val = day_val = None
if isinstance(value, six.string_types):
if settings.USE_L10N:
try:
input_format = get_format('DATE_INPUT_FORMATS')[0]
v = datetime.datetime.strptime(force_str(value), input_format)
year_val, month_val, day_val = v.year, v.month, v.day
except ValueError:
pass
if year_val is None:
match = self.date_re.match(value)
if match:
year_val, month_val, day_val = [int(val) for val in match.groups()]
html = {}
choices = [(i, i) for i in self.years]
html['year'] = self.create_select(name, self.year_field, value, year_val, choices, self.year_none_value)
choices = list(self.months.items())
html['month'] = self.create_select(name, self.month_field, value, month_val, choices, self.month_none_value)
choices = [(i, i) for i in range(1, 32)]
html['day'] = self.create_select(name, self.day_field, value, day_val, choices, self.day_none_value)
output = []
for field in self._parse_date_fmt():
output.append(html[field])
return mark_safe('\n'.join(output))
def do_dateformat(value, use_format='c'):
"""Formats a `value` date using `format`.
:param value: a datetime object.
:param use_format: a format string accepted by
:func:`django.utils.formats.get_format` or
:func:`django.utils.dateformat.format`. If none is set, the current
locale's default format will be used.
"""
try:
use_format = get_format(use_format)
except AttributeError:
pass
return dateformat.format(value, use_format)
def format_value(self, value):
return formats.localize_input(value, self.format or formats.get_format(self.format_key)[0])
