126 lines
4.3 KiB
Python
126 lines
4.3 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import warnings
|
|
|
|
from django.conf import settings
|
|
from django.utils.html import format_html, format_html_join
|
|
from django.utils.encoding import force_text, python_2_unicode_compatible
|
|
from django.utils import timezone
|
|
from django.utils.translation import ugettext_lazy as _
|
|
from django.utils import six
|
|
import sys
|
|
|
|
# Import ValidationError so that it can be imported from this
|
|
# module to maintain backwards compatibility.
|
|
from django.core.exceptions import ValidationError
|
|
|
|
|
|
def flatatt(attrs):
|
|
"""
|
|
Convert a dictionary of attributes to a single string.
|
|
The returned string will contain a leading space followed by key="value",
|
|
XML-style pairs. It is assumed that the keys do not need to be XML-escaped.
|
|
If the passed dictionary is empty, then return an empty string.
|
|
|
|
The result is passed through 'mark_safe'.
|
|
"""
|
|
for attr_name, value in attrs.items():
|
|
if type(value) is bool:
|
|
warnings.warn(
|
|
"In Django 1.8, widget attribute %(attr_name)s=%(bool_value)s "
|
|
"will %(action)s. To preserve current behavior, use the "
|
|
"string '%(bool_value)s' instead of the boolean value." % {
|
|
'attr_name': attr_name,
|
|
'action': "be rendered as '%s'" % attr_name if value else "not be rendered",
|
|
'bool_value': value,
|
|
},
|
|
DeprecationWarning
|
|
)
|
|
return format_html_join('', ' {0}="{1}"', sorted(attrs.items()))
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class ErrorDict(dict):
|
|
"""
|
|
A collection of errors that knows how to display itself in various formats.
|
|
|
|
The dictionary keys are the field names, and the values are the errors.
|
|
"""
|
|
def __str__(self):
|
|
return self.as_ul()
|
|
|
|
def as_ul(self):
|
|
if not self:
|
|
return ''
|
|
return format_html('<ul class="errorlist">{0}</ul>',
|
|
format_html_join('', '<li>{0}{1}</li>',
|
|
((k, force_text(v))
|
|
for k, v in self.items())
|
|
))
|
|
|
|
def as_text(self):
|
|
return '\n'.join('* %s\n%s' % (k, '\n'.join(' * %s' % force_text(i) for i in v)) for k, v in self.items())
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class ErrorList(list):
|
|
"""
|
|
A collection of errors that knows how to display itself in various formats.
|
|
"""
|
|
def __str__(self):
|
|
return self.as_ul()
|
|
|
|
def as_ul(self):
|
|
if not self:
|
|
return ''
|
|
return format_html('<ul class="errorlist">{0}</ul>',
|
|
format_html_join('', '<li>{0}</li>',
|
|
((force_text(e),) for e in self)
|
|
)
|
|
)
|
|
|
|
def as_text(self):
|
|
if not self:
|
|
return ''
|
|
return '\n'.join('* %s' % force_text(e) for e in self)
|
|
|
|
def __repr__(self):
|
|
return repr([force_text(e) for e in self])
|
|
|
|
|
|
# Utilities for time zone support in DateTimeField et al.
|
|
|
|
def from_current_timezone(value):
|
|
"""
|
|
When time zone support is enabled, convert naive datetimes
|
|
entered in the current time zone to aware datetimes.
|
|
"""
|
|
if settings.USE_TZ and value is not None and timezone.is_naive(value):
|
|
current_timezone = timezone.get_current_timezone()
|
|
try:
|
|
return timezone.make_aware(value, current_timezone)
|
|
except Exception:
|
|
message = _(
|
|
'%(datetime)s couldn\'t be interpreted '
|
|
'in time zone %(current_timezone)s; it '
|
|
'may be ambiguous or it may not exist.'
|
|
)
|
|
params = {'datetime': value, 'current_timezone': current_timezone}
|
|
six.reraise(ValidationError, ValidationError(
|
|
message,
|
|
code='ambiguous_timezone',
|
|
params=params,
|
|
), sys.exc_info()[2])
|
|
return value
|
|
|
|
|
|
def to_current_timezone(value):
|
|
"""
|
|
When time zone support is enabled, convert aware datetimes
|
|
to naive dateimes in the current time zone for display.
|
|
"""
|
|
if settings.USE_TZ and value is not None and timezone.is_aware(value):
|
|
current_timezone = timezone.get_current_timezone()
|
|
return timezone.make_naive(value, current_timezone)
|
|
return value
|