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Code Issues Releases Wiki Activity

Fixed #28192 -- Required passing optional form field args as keyword args.

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This commit is contained in:
Claude Paroz 2017-06-03 16:49:01 +02:00 committed by Tim Graham
parent ecae9c7aec
commit 43b574007e
7 changed files with 66 additions and 62 deletions
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6
django/contrib/postgres/forms/array.py
View File

@ -16,10 +16,10 @@ class SimpleArrayField(forms.CharField):
'item_invalid': _('Item %(nth)s in the array did not validate: '),
}
def __init__(self, base_field, delimiter=',', max_length=None, min_length=None, *args, **kwargs):
def __init__(self, base_field, *, delimiter=',', max_length=None, min_length=None, **kwargs):
self.base_field = base_field
self.delimiter = delimiter
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
if min_length is not None:
self.min_length = min_length
self.validators.append(ArrayMinLengthValidator(int(min_length)))
@ -156,7 +156,7 @@ class SplitArrayField(forms.Field):
'item_invalid': _('Item %(nth)s in the array did not validate: '),
}
def __init__(self, base_field, size, remove_trailing_nulls=False, **kwargs):
def __init__(self, base_field, size, *, remove_trailing_nulls=False, **kwargs):
self.base_field = base_field
self.size = size
self.remove_trailing_nulls = remove_trailing_nulls

80
django/forms/fields.py
View File

@ -53,7 +53,7 @@ class Field:
}
empty_values = list(validators.EMPTY_VALUES)
def __init__(self, required=True, widget=None, label=None, initial=None,
def __init__(self, *, required=True, widget=None, label=None, initial=None,
help_text='', error_messages=None, show_hidden_initial=False,
validators=(), localize=False, disabled=False, label_suffix=None):
# required -- Boolean that specifies whether the field is required.
@ -205,12 +205,12 @@ class Field:
class CharField(Field):
def __init__(self, max_length=None, min_length=None, strip=True, empty_value='', *args, **kwargs):
def __init__(self, *, max_length=None, min_length=None, strip=True, empty_value='', **kwargs):
self.max_length = max_length
self.min_length = min_length
self.strip = strip
self.empty_value = empty_value
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
if min_length is not None:
self.validators.append(validators.MinLengthValidator(int(min_length)))
if max_length is not None:
@ -243,12 +243,12 @@ class IntegerField(Field):
}
re_decimal = re.compile(r'\.0*\s*$')
def __init__(self, max_value=None, min_value=None, *args, **kwargs):
def __init__(self, *, max_value=None, min_value=None, **kwargs):
self.max_value, self.min_value = max_value, min_value
if kwargs.get('localize') and self.widget == NumberInput:
# Localized number input is not well supported on most browsers
kwargs.setdefault('widget', super().widget)
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
if max_value is not None:
self.validators.append(validators.MaxValueValidator(max_value))
@ -324,9 +324,9 @@ class DecimalField(IntegerField):
'invalid': _('Enter a number.'),
}
def __init__(self, max_value=None, min_value=None, max_digits=None, decimal_places=None, *args, **kwargs):
def __init__(self, *, max_value=None, min_value=None, max_digits=None, decimal_places=None, **kwargs):
self.max_digits, self.decimal_places = max_digits, decimal_places
super().__init__(max_value, min_value, *args, **kwargs)
super().__init__(max_value=max_value, min_value=min_value, **kwargs)
self.validators.append(validators.DecimalValidator(max_digits, decimal_places))
def to_python(self, value):
@ -372,8 +372,8 @@ class DecimalField(IntegerField):
class BaseTemporalField(Field):
def __init__(self, input_formats=None, *args, **kwargs):
super().__init__(*args, **kwargs)
def __init__(self, *, input_formats=None, **kwargs):
super().__init__(**kwargs)
if input_formats is not None:
self.input_formats = input_formats
@ -490,12 +490,12 @@ class DurationField(Field):
class RegexField(CharField):
def __init__(self, regex, max_length=None, min_length=None, *args, **kwargs):
def __init__(self, regex, **kwargs):
"""
regex can be either a string or a compiled regular expression object.
"""
kwargs.setdefault('strip', False)
super().__init__(max_length, min_length, *args, **kwargs)
super().__init__(**kwargs)
self._set_regex(regex)
def _get_regex(self):
@ -517,8 +517,8 @@ class EmailField(CharField):
widget = EmailInput
default_validators = [validators.validate_email]
def __init__(self, *args, **kwargs):
super().__init__(*args, strip=True, **kwargs)
def __init__(self, **kwargs):
super().__init__(strip=True, **kwargs)
class FileField(Field):
@ -534,10 +534,10 @@ class FileField(Field):
'contradiction': _('Please either submit a file or check the clear checkbox, not both.')
}
def __init__(self, *args, max_length=None, allow_empty_file=False, **kwargs):
def __init__(self, *, max_length=None, allow_empty_file=False, **kwargs):
self.max_length = max_length
self.allow_empty_file = allow_empty_file
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
def to_python(self, data):
if data in self.empty_values:
@ -650,8 +650,8 @@ class URLField(CharField):
}
default_validators = [validators.URLValidator()]
def __init__(self, *args, **kwargs):
super().__init__(*args, strip=True, **kwargs)
def __init__(self, **kwargs):
super().__init__(strip=True, **kwargs)
def to_python(self, value):
@ -751,12 +751,8 @@ class ChoiceField(Field):
'invalid_choice': _('Select a valid choice. %(value)s is not one of the available choices.'),
}
def __init__(self, choices=(), required=True, widget=None, label=None,
initial=None, help_text='', *args, **kwargs):
super().__init__(
required=required, widget=widget, label=label, initial=initial,
help_text=help_text, *args, **kwargs
)
def __init__(self, *, choices=(), **kwargs):
super().__init__(**kwargs)
self.choices = choices
def __deepcopy__(self, memo):
@ -812,10 +808,10 @@ class ChoiceField(Field):
class TypedChoiceField(ChoiceField):
def __init__(self, *args, coerce=lambda val: val, empty_value='', **kwargs):
def __init__(self, *, coerce=lambda val: val, empty_value='', **kwargs):
self.coerce = coerce
self.empty_value = empty_value
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
def _coerce(self, value):
"""
@ -879,10 +875,10 @@ class MultipleChoiceField(ChoiceField):
class TypedMultipleChoiceField(MultipleChoiceField):
def __init__(self, *args, coerce=lambda val: val, **kwargs):
def __init__(self, *, coerce=lambda val: val, **kwargs):
self.coerce = coerce
self.empty_value = kwargs.pop('empty_value', [])
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
def _coerce(self, value):
"""
@ -918,8 +914,8 @@ class ComboField(Field):
"""
A Field whose clean() method calls multiple Field clean() methods.
"""
def __init__(self, fields, *args, **kwargs):
super().__init__(*args, **kwargs)
def __init__(self, fields, **kwargs):
super().__init__(**kwargs)
# Set 'required' to False on the individual fields, because the
# required validation will be handled by ComboField, not by those
# individual fields.
@ -960,9 +956,9 @@ class MultiValueField(Field):
'incomplete': _('Enter a complete value.'),
}
def __init__(self, fields, *args, require_all_fields=True, **kwargs):
def __init__(self, fields, *, require_all_fields=True, **kwargs):
self.require_all_fields = require_all_fields
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
for f in fields:
f.error_messages.setdefault('incomplete',
self.error_messages['incomplete'])
@ -1061,15 +1057,11 @@ class MultiValueField(Field):
class FilePathField(ChoiceField):
def __init__(self, path, match=None, recursive=False, allow_files=True,
allow_folders=False, required=True, widget=None, label=None,
initial=None, help_text='', *args, **kwargs):
def __init__(self, path, *, match=None, recursive=False, allow_files=True,
allow_folders=False, **kwargs):
self.path, self.match, self.recursive = path, match, recursive
self.allow_files, self.allow_folders = allow_files, allow_folders
super().__init__(
choices=(), required=required, widget=widget, label=label,
initial=initial, help_text=help_text, *args, **kwargs
)
super().__init__(choices=(), **kwargs)
if self.required:
self.choices = []
@ -1117,7 +1109,7 @@ class SplitDateTimeField(MultiValueField):
'invalid_time': _('Enter a valid time.'),
}
def __init__(self, input_date_formats=None, input_time_formats=None, *args, **kwargs):
def __init__(self, *, input_date_formats=None, input_time_formats=None, **kwargs):
errors = self.default_error_messages.copy()
if 'error_messages' in kwargs:
errors.update(kwargs['error_messages'])
@ -1130,7 +1122,7 @@ class SplitDateTimeField(MultiValueField):
error_messages={'invalid': errors['invalid_time']},
localize=localize),
)
super().__init__(fields, *args, **kwargs)
super().__init__(fields, **kwargs)
def compress(self, data_list):
if data_list:
@ -1146,10 +1138,10 @@ class SplitDateTimeField(MultiValueField):
class GenericIPAddressField(CharField):
def __init__(self, protocol='both', unpack_ipv4=False, *args, **kwargs):
def __init__(self, *, protocol='both', unpack_ipv4=False, **kwargs):
self.unpack_ipv4 = unpack_ipv4
self.default_validators = validators.ip_address_validators(protocol, unpack_ipv4)[0]
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
def to_python(self, value):
if value in self.empty_values:
@ -1163,11 +1155,11 @@ class GenericIPAddressField(CharField):
class SlugField(CharField):
default_validators = [validators.validate_slug]
def __init__(self, *args, allow_unicode=False, **kwargs):
def __init__(self, *, allow_unicode=False, **kwargs):
self.allow_unicode = allow_unicode
if self.allow_unicode:
self.default_validators = [validators.validate_unicode_slug]
super().__init__(*args, **kwargs)
super().__init__(**kwargs)
class UUIDField(CharField):

18
django/forms/models.py
View File

@ -1128,10 +1128,10 @@ class ModelChoiceField(ChoiceField):
}
iterator = ModelChoiceIterator
def __init__(self, queryset, empty_label="---------",
def __init__(self, queryset, *, empty_label="---------",
required=True, widget=None, label=None, initial=None,
help_text='', to_field_name=None, limit_choices_to=None,
*args, **kwargs):
**kwargs):
if required and (initial is not None):
self.empty_label = None
else:
@ -1139,8 +1139,10 @@ class ModelChoiceField(ChoiceField):
# Call Field instead of ChoiceField __init__() because we don't need
# ChoiceField.__init__().
Field.__init__(self, required, widget, label, initial, help_text,
*args, **kwargs)
Field.__init__(
self, required=required, widget=widget, label=label,
initial=initial, help_text=help_text, **kwargs
)
self.queryset = queryset
self.limit_choices_to = limit_choices_to # limit the queryset later.
self.to_field_name = to_field_name
@ -1236,12 +1238,8 @@ class ModelMultipleChoiceField(ModelChoiceField):
'invalid_pk_value': _('"%(pk)s" is not a valid value.')
}
def __init__(self, queryset, required=True, widget=None, label=None,
initial=None, help_text='', *args, **kwargs):
super().__init__(
queryset, None, required, widget, label, initial, help_text,
*args, **kwargs
)
def __init__(self, queryset, **kwargs):
super().__init__(queryset, empty_label=None, **kwargs)
def to_python(self, value):
if not value:

4
docs/ref/forms/fields.txt
View File

@ -1006,7 +1006,7 @@ Slightly complex built-in ``Field`` classes
from django.core.validators import RegexValidator
class PhoneField(MultiValueField):
def __init__(self, *args, **kwargs):
def __init__(self, **kwargs):
# Define one message for all fields.
error_messages = {
'incomplete': 'Enter a country calling code and a phone number.',
@ -1030,7 +1030,7 @@ Slightly complex built-in ``Field`` classes
)
super().__init__(
error_messages=error_messages, fields=fields,
require_all_fields=False, *args, **kwargs
require_all_fields=False, **kwargs
)
.. attribute:: MultiValueField.widget

13
docs/releases/2.0.txt
View File

@ -351,6 +351,19 @@ now prohibited, e.g.::
...
TypeError: Cannot reverse a query once a slice has been taken.
Form fields no longer accept optional arguments as positional arguments
-----------------------------------------------------------------------
To help prevent runtime errors due to incorrect ordering of form field
arguments, optional arguments of built-in form fields are no longer accepted
as positional arguments. For example::
forms.IntegerField(25, 10)
raises an exception and should be replaced with::
forms.IntegerField(max_value=25, min_value=10)
Miscellaneous
-------------

3
tests/forms_tests/field_tests/test_charfield.py
View File

@ -73,7 +73,8 @@ class CharFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
CharField(min_length='a')
with self.assertRaises(ValueError):
CharField(max_length='a')
with self.assertRaises(ValueError):
msg = '__init__() takes 1 positional argument but 2 were given'
with self.assertRaisesMessage(TypeError, msg):
CharField('a')
def test_charfield_widget_attrs(self):

4
tests/forms_tests/field_tests/test_multivaluefield.py
View File

@ -31,13 +31,13 @@ class ComplexMultiWidget(MultiWidget):
class ComplexField(MultiValueField):
def __init__(self, required=True, widget=None, label=None, initial=None):
def __init__(self, **kwargs):
fields = (
CharField(),
MultipleChoiceField(choices=beatles),
SplitDateTimeField(),
)
super().__init__(fields, required, widget, label, initial)
super().__init__(fields, **kwargs)
def compress(self, data_list):
if data_list: