class URLField
from django.forms import URLField
Attributes
| Defined in | |
|---|---|
creation_counter = 0
|
Field |
default_error_messages = {'invalid': <django.utils.functional.lazy.<locals>.__proxy__ object at 0x1101bebe0>}
|
URLField |
default_error_messages = {'required': <django.utils.functional.lazy.<locals>.__proxy__ object at 0x110185d30>}
|
Field |
default_validators = [<django.core.validators.URLValidator object at 0x1101becf8>]
|
URLField |
default_validators = []
|
Field |
empty_values = [None, '', [], (), {}]
|
Field |
Methods
def
_has_changed(*args, **kwargs):
¶
Field
def wrapped(*args, **kwargs):
warnings.warn(
"`%s.%s` is deprecated, use `%s` instead." %
(self.class_name, self.old_method_name, self.new_method_name),
self.deprecation_warning, 2)
return f(*args, **kwargs)
def
bound_data(self, data, initial):
¶
Field
Return the value that should be shown for this field on render of a
bound form, given the submitted POST data for the field and the initial
data, if any.
For most fields, this will simply be data; FileFields need to handle it
a bit differently.
def bound_data(self, data, initial):
"""
Return the value that should be shown for this field on render of a
bound form, given the submitted POST data for the field and the initial
data, if any.
For most fields, this will simply be data; FileFields need to handle it
a bit differently.
"""
if self.disabled:
return initial
return data
def
clean(self, value):
¶
URLField
def clean(self, value):
value = self.to_python(value).strip()
return super(URLField, self).clean(value)
Field
Validates the given value and returns its "cleaned" value as an
appropriate Python object.
Raises ValidationError for any errors.
def clean(self, value):
"""
Validates the given value and returns its "cleaned" value as an
appropriate Python object.
Raises ValidationError for any errors.
"""
value = self.to_python(value)
self.validate(value)
self.run_validators(value)
return value
def
get_bound_field(self, form, field_name):
¶
Field
Return a BoundField instance that will be used when accessing the form
field in a template.
def get_bound_field(self, form, field_name):
"""
Return a BoundField instance that will be used when accessing the form
field in a template.
"""
return BoundField(form, self, field_name)
def
has_changed(self, initial, data):
¶
Field
Return True if data differs from initial.
def has_changed(self, initial, data):
"""
Return True if data differs from initial.
"""
try:
data = self.to_python(data)
if hasattr(self, '_coerce'):
return self._coerce(data) != self._coerce(initial)
except ValidationError:
return True
# For purposes of seeing whether something has changed, None is
# the same as an empty string, if the data or initial value we get
# is None, replace it with ''.
initial_value = initial if initial is not None else ''
data_value = data if data is not None else ''
return initial_value != data_value
def
prepare_value(self, value):
¶
Field
def prepare_value(self, value):
return value
def
run_validators(self, value):
¶
Field
def run_validators(self, value):
if value in self.empty_values:
return
errors = []
for v in self.validators:
try:
v(value)
except ValidationError as e:
if hasattr(e, 'code') and e.code in self.error_messages:
e.message = self.error_messages[e.code]
errors.extend(e.error_list)
if errors:
raise ValidationError(errors)
def
to_python(self, value):
¶
URLField
def to_python(self, value):
def split_url(url):
"""
Returns a list of url parts via ``urlparse.urlsplit`` (or raises a
``ValidationError`` exception for certain).
"""
try:
return list(urlsplit(url))
except ValueError:
# urlparse.urlsplit can raise a ValueError with some
# misformatted URLs.
raise ValidationError(self.error_messages['invalid'], code='invalid')
value = super(URLField, self).to_python(value)
if value:
url_fields = split_url(value)
if not url_fields[0]:
# If no URL scheme given, assume http://
url_fields[0] = 'http'
if not url_fields[1]:
# Assume that if no domain is provided, that the path segment
# contains the domain.
url_fields[1] = url_fields[2]
url_fields[2] = ''
# Rebuild the url_fields list, since the domain segment may now
# contain the path too.
url_fields = split_url(urlunsplit(url_fields))
value = urlunsplit(url_fields)
return value
CharField
Returns a Unicode object.
def to_python(self, value):
"Returns a Unicode object."
if value in self.empty_values:
return ''
value = force_text(value)
if self.strip:
value = value.strip()
return value
Field
def to_python(self, value):
return value
def
validate(self, value):
¶
Field
def validate(self, value):
if value in self.empty_values and self.required:
raise ValidationError(self.error_messages['required'], code='required')
def
widget_attrs(self, widget):
¶
CharField
def widget_attrs(self, widget):
attrs = super(CharField, self).widget_attrs(widget)
if self.max_length is not None:
# The HTML attribute is maxlength, not max_length.
attrs.update({'maxlength': str(self.max_length)})
return attrs
Field
Given a Widget instance (*not* a Widget class), returns a dictionary of
any HTML attributes that should be added to the Widget, based on this
Field.
def widget_attrs(self, widget):
"""
Given a Widget instance (*not* a Widget class), returns a dictionary of
any HTML attributes that should be added to the Widget, based on this
Field.
"""
return {}