def property_clean(prop, value):
"""Apply Property level validation to value.
Calls .make_value_from_form() and .validate() on the property and catches
exceptions generated by either. The exceptions are converted to
forms.ValidationError exceptions.
Args:
prop: The property to validate against.
value: The value to validate.
Raises:
forms.ValidationError if the value cannot be validated.
"""
if value is not None:
try:
prop.validate(prop.make_value_from_form(value))
except (db.BadValueError, ValueError), e:
raise forms.ValidationError(unicode(e))
python类Property()的实例源码
def validate(self, value):
if value is not None and not isinstance(value, Flow):
raise db.BadValueError('Property %s must be convertible '
'to a FlowThreeLegged instance (%s)' %
(self.name, value))
return super(FlowProperty, self).validate(value)
def _validate(self, value):
"""Validates a value as a proper Flow object.
Args:
value: A value to be set on the property.
Raises:
TypeError if the value is not an instance of Flow.
"""
logger.info('validate: Got type %s', type(value))
if value is not None and not isinstance(value, Flow):
raise TypeError('Property %s must be convertible to a flow '
'instance; received: %s.' % (self._name,
value))
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, Credentials):
raise db.BadValueError('Property %s must be convertible '
'to a Credentials instance (%s)' %
(self.name, value))
return value
def _validate(self, value):
"""Validates a value as a proper credentials object.
Args:
value: A value to be set on the property.
Raises:
TypeError if the value is not an instance of Credentials.
"""
logger.info('validate: Got type %s', type(value))
if value is not None and not isinstance(value, Credentials):
raise TypeError('Property %s must be convertible to a '
'credentials instance; received: %s.' %
(self._name, value))
def validate(self, value):
if value is not None and not isinstance(value, Flow):
raise db.BadValueError('Property %s must be convertible '
'to a FlowThreeLegged instance (%s)' %
(self.name, value))
return super(FlowProperty, self).validate(value)
def _validate(self, value):
"""Validates a value as a proper Flow object.
Args:
value: A value to be set on the property.
Raises:
TypeError if the value is not an instance of Flow.
"""
logger.info('validate: Got type %s', type(value))
if value is not None and not isinstance(value, Flow):
raise TypeError('Property %s must be convertible to a flow '
'instance; received: %s.' % (self._name, value))
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, Credentials):
raise db.BadValueError('Property %s must be convertible '
'to a Credentials instance (%s)' %
(self.name, value))
#if value is not None and not isinstance(value, Credentials):
# return None
return value
def _validate(self, value):
"""Validates a value as a proper credentials object.
Args:
value: A value to be set on the property.
Raises:
TypeError if the value is not an instance of Credentials.
"""
if value is not None and not isinstance(value, Credentials):
raise TypeError('Property %s must be convertible to a credentials '
'instance; received: %s.' % (self._name, value))
def validate(self, value):
if value is not None and not isinstance(value, client.Flow):
raise db.BadValueError(
'Property {0} must be convertible '
'to a FlowThreeLegged instance ({1})'.format(self.name, value))
return super(FlowProperty, self).validate(value)
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, client.Credentials):
raise db.BadValueError(
'Property {0} must be convertible '
'to a Credentials instance ({1})'.format(self.name, value))
return value
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def validate(self, value):
if value is not None and not isinstance(value, Flow):
raise db.BadValueError('Property %s must be convertible '
'to a FlowThreeLegged instance (%s)' %
(self.name, value))
return super(FlowProperty, self).validate(value)
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, Credentials):
raise db.BadValueError('Property %s must be convertible '
'to a Credentials instance (%s)' %
(self.name, value))
#if value is not None and not isinstance(value, Credentials):
# return None
return value
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def validate(self, value):
if value is not None and not isinstance(value, client.Flow):
raise db.BadValueError(
'Property {0} must be convertible '
'to a FlowThreeLegged instance ({1})'.format(self.name, value))
return super(FlowProperty, self).validate(value)
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, client.Credentials):
raise db.BadValueError(
'Property {0} must be convertible '
'to a Credentials instance ({1})'.format(self.name, value))
return value
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def validate(self, value):
value = super(GAEDecimalProperty, self).validate(value)
if value is None or isinstance(value, decimal.Decimal):
return value
elif isinstance(value, basestring):
return decimal.Decimal(value)
raise gae.BadValueError("Property %s must be a Decimal or string."\
% self.name)
###################################################################################
# class that handles connection pooling (all adapters are derived from this one)
###################################################################################
def validate(self, value):
if value is not None and not isinstance(value, client.Flow):
raise db.BadValueError(
'Property {0} must be convertible '
'to a FlowThreeLegged instance ({1})'.format(self.name, value))
return super(FlowProperty, self).validate(value)
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, client.Credentials):
raise db.BadValueError(
'Property {0} must be convertible '
'to a Credentials instance ({1})'.format(self.name, value))
return value
def validate(self, value):
if value is not None and not isinstance(value, Flow):
raise db.BadValueError('Property %s must be convertible '
'to a FlowThreeLegged instance (%s)' %
(self.name, value))
return super(FlowProperty, self).validate(value)
def _validate(self, value):
"""Validates a value as a proper Flow object.
Args:
value: A value to be set on the property.
Raises:
TypeError if the value is not an instance of Flow.
"""
logger.info('validate: Got type %s', type(value))
if value is not None and not isinstance(value, Flow):
raise TypeError('Property %s must be convertible to a flow '
'instance; received: %s.' % (self._name, value))
def validate(self, value):
value = super(CredentialsProperty, self).validate(value)
logger.info("validate: Got type " + str(type(value)))
if value is not None and not isinstance(value, Credentials):
raise db.BadValueError('Property %s must be convertible '
'to a Credentials instance (%s)' %
(self.name, value))
#if value is not None and not isinstance(value, Credentials):
# return None
return value
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def convert(self, model, prop, field_args):
"""
Returns a form field for a single model property.
:param model:
The ``db.Model`` class that contains the property.
:param prop:
The model property: a ``db.Property`` instance.
:param field_args:
Optional keyword arguments to construct the field.
"""
prop_type_name = type(prop).__name__
kwargs = {
'label': prop.name.replace('_', ' ').title(),
'default': prop.default_value(),
'validators': [],
}
if field_args:
kwargs.update(field_args)
if prop.required and prop_type_name not in self.NO_AUTO_REQUIRED:
kwargs['validators'].append(validators.required())
if prop.choices:
# Use choices in a select field if it was not provided in field_args
if 'choices' not in kwargs:
kwargs['choices'] = [(v, v) for v in prop.choices]
return f.SelectField(**kwargs)
else:
converter = self.converters.get(prop_type_name, None)
if converter is not None:
return converter(model, prop, kwargs)
def validate(self, value):
if value is not None and not isinstance(value, Flow):
raise db.BadValueError(
'Property {0} must be convertible '
'to a FlowThreeLegged instance ({1})'.format(self.name, value))
return super(FlowProperty, self).validate(value)
