1
0
mirror of https://github.com/django/django.git synced 2025-01-18 06:12:23 +00:00
django/django/utils/formats.py
Jannis Leidel 9233d04265 Fixed #7980 - Improved i18n framework to support locale aware formatting (dates and numbers) and form processing.
Thanks to Marc Garcia for working on this during his Google Summer of Code 2009!

Additionally fixes #1061, #2203, #3940, #5526, #6449, #6231, #6693, #6783, #9366 and #10891.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11964 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-12-22 17:58:49 +00:00

98 lines
3.2 KiB
Python

import decimal
import datetime
from django.conf import settings
from django.utils.translation import get_language, to_locale, check_for_language
from django.utils.importlib import import_module
from django.utils import dateformat
from django.utils import numberformat
def get_format_modules():
"""
Returns an iterator over the format modules found in the project and Django
"""
modules = []
if not check_for_language(get_language()):
return modules
locale = to_locale(get_language())
if settings.FORMAT_MODULE_PATH:
format_locations = [settings.FORMAT_MODULE_PATH + '.%s']
else:
format_locations = []
format_locations.append('django.conf.locale.%s')
for location in format_locations:
for l in (locale, locale.split('_')[0]):
try:
mod = import_module('.formats', location % l)
except ImportError:
pass
else:
# Don't return duplicates
if mod not in modules:
modules.append(mod)
return modules
def get_format(format_type):
"""
For a specific format type, returns the format for the current
language (locale), defaults to the format in the settings.
format_type is the name of the format, e.g. 'DATE_FORMAT'
"""
if settings.USE_L10N:
for module in get_format_modules():
try:
return getattr(module, format_type)
except AttributeError:
pass
return getattr(settings, format_type)
def date_format(value, format=None):
"""
Formats a datetime.date or datetime.datetime object using a
localizable format
"""
return dateformat.format(value, get_format(format or 'DATE_FORMAT'))
def number_format(value, decimal_pos=None):
"""
Formats a numeric value using localization settings
"""
return numberformat.format(
value,
get_format('DECIMAL_SEPARATOR'),
decimal_pos,
get_format('NUMBER_GROUPING'),
get_format('THOUSAND_SEPARATOR'),
)
def localize(value, is_input=False):
"""
Checks value, and if it has a localizable type (date,
number...) it returns the value as a string using
current locale format
"""
if settings.USE_L10N:
if isinstance(value, decimal.Decimal):
return number_format(value)
elif isinstance(value, float):
return number_format(value)
elif isinstance(value, int):
return number_format(value)
elif isinstance(value, datetime.datetime):
if not is_input:
return date_format(value, 'DATETIME_FORMAT')
else:
return value.strftime(get_format('DATETIME_INPUT_FORMATS')[0])
elif isinstance(value, datetime.date):
if not is_input:
return date_format(value)
else:
return value.strftime(get_format('DATE_INPUT_FORMATS')[0])
elif isinstance(value, datetime.time):
if not is_input:
return date_format(value, 'TIME_FORMAT')
else:
return value.strftime(get_format('TIME_INPUT_FORMATS')[0])
return value