我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用google.appengine.ext.db.Property()。
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))
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): 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 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, 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, Credentials): raise db.BadValueError( 'Property {0} must be convertible ' 'to a Credentials instance ({1})'.format(self.name, value)) return value
