def __init__(
self,
db_column="",
db_index=False,
null=False,
protocol="both",
unique=False,
unpack_protocol="same",
):
if protocol.lower() not in ("both", "ipv6", "ipv4"):
raise FieldError(
'"{}" is not a recognized protocol'.format(protocol))
if unpack_protocol.lower() not in ("same", "ipv6", "ipv4"):
raise FieldError('"{}" is not a recognized unpack_protocol'.format(
unpack_protocol))
if protocol.lower() != "both" and unpack_protocol != "same":
raise FieldError(
"if the protocol is restricted the output will always be in the same protocol version, "
'so unpack_protocol should be default value, "same"')
super().__init__(
db_column=db_column,
db_index=db_index,
default=None,
null=null,
protocol=protocol,
unique=unique,
unpack_protocol=unpack_protocol,
)
def __init__(self,
db_column='',
db_index=False,
null=False,
protocol='both',
unique=False,
unpack_protocol='same'):
if protocol.lower() not in ('both', 'ipv6', 'ipv4'):
raise FieldError(
'"{}" is not a recognized protocol'.format(protocol))
if unpack_protocol.lower() not in ('same', 'ipv6', 'ipv4'):
raise FieldError('"{}" is not a recognized unpack_protocol'.format(
unpack_protocol))
if protocol.lower() != 'both' and unpack_protocol != 'same':
raise FieldError(
'if the protocol is restricted the output will always be in the same protocol version, '
'so unpack_protocol should be default value, "same"')
super().__init__(db_column=db_column,
db_index=db_index,
default=None,
null=null,
protocol=protocol,
unique=unique,
unpack_protocol=unpack_protocol)
def set_field_name(self, db_column):
if "__" in db_column:
raise FieldError('db_column can not contain "__"')
if db_column.startswith("_"):
raise FieldError('db_column can not start with "_"')
if db_column.endswith("_"):
raise FieldError('db_column can not end with "_"')
self.db_column = db_column
def validate(self, value):
try:
IPNetwork(value)
except AddrFormatError:
raise FieldError("Not a correct IP address")
if self.protocol.lower() != "both" and IPNetwork(value).version != int(
self.protocol[-1:]):
raise FieldError("{} is not a correct {} IP address".format(
value, self.protocol))
def validate(self, value):
super().validate(value)
if value:
items_type = self.homogeneous_type(value)
if not items_type:
raise FieldError("Array elements are not of the same type")
if items_type == list:
if not all(len(item) == len(value[0]) for item in value):
raise FieldError(
"Multi-dimensional arrays must have items of the same size"
)
return value
def validate(self, value):
if value is None and not self.null:
raise FieldError("null value in NOT NULL field")
if hasattr(self, "choices") and self.choices is not None:
if value not in self.choices.keys():
raise FieldError('"{}" not in model choices'.format(value))
if value is not None and not isinstance(value, self.internal_type):
raise FieldError(
"{value} is a wrong datatype for field {cls}".format(
value=value, cls=self.__class__.__name__))
def validate_kwargs(self, kwargs):
for kw in self.required_kwargs:
if not kwargs.get(kw, None):
raise FieldError('"{cls}" field requires {kw}'.format(
cls=self.__class__.__name__, kw=kw))
for k, v in kwargs.items():
null_choices = v is None and k == "choices"
if not isinstance(v, KWARGS_TYPES[k]) and not null_choices:
raise FieldError("Wrong value for {k}".format(k=k))
if kwargs.get("db_column", ""):
self.set_field_name(kwargs["db_column"])
def sanitize_data(self, value):
exp = r"^[a-zA-Z0-9\-\b]{36}$"
if re.match(exp, value):
return value
raise FieldError(
"The expresion doesn't validate as a correct {}".format(
self.__class__.__name__))
def sanitize_data(self, value):
value = super().sanitize_data(value)
if len(value) > self.max_length:
raise FieldError(
'The string entered is bigger than the "max_length" defined ({})'
.format(self.max_length))
return str(value)
def sanitize_data(self, value):
self.validate(value)
if value is not None:
if isinstance(value, str):
try:
value = json.loads(value)
except JSONDecodeError:
raise FieldError(
"The data entered can not be converted to json")
value = json.dumps(value)
if len(value) > self.max_length:
raise FieldError(
'The string entered is bigger than the "max_length" defined ({})'
.format(self.max_length))
return value
def __init__(self,
db_column='',
db_index=False,
default=None,
dialect='unix',
null=False,
unique=True):
if dialect not in (self.mac_dialects.keys()):
raise FieldError(
'"{}" is not a correct mac dialect'.format(dialect))
super().__init__(db_column=db_column,
db_index=db_index,
default=default,
dialect=dialect,
null=null,
unique=unique)
def __init__(self,
db_column='',
db_index=False,
null=False,
unique=True,
uuid_type='v4'):
self.field_requirement = 'CREATE EXTENSION IF NOT EXISTS "uuid-ossp";'
if uuid_type not in ['v1', 'v4']:
raise FieldError('{} is not a recognized type'.format(uuid_type))
super().__init__(db_column=db_column,
db_index=db_index,
default=None,
null=null,
unique=unique,
uuid_type=uuid_type)
def validate_kwargs(self, kwargs):
'''validate the kwargs on object instantiation only'''
attr_errors = [k for k in kwargs.keys() if k not in self.fields.keys()]
if attr_errors:
err_string = '"{}" is not an attribute for {}'
error_list = [
err_string.format(k, self.__class__.__name__)
for k in attr_errors
]
raise ModelError(error_list)
for k, v in kwargs.items():
att_field = getattr(self.__class__, k)
att_field.validate(v)
if att_field.__class__ is AutoField and v:
raise FieldError('Models can not be generated with forced id')
def validate(self, value):
try:
EUI(value)
except AddrFormatError:
raise FieldError("Not a correct MAC address")
def validate(self, value):
super(EmailField, self).validate(value)
# now validate the emailfield here
email_regex = r"^[\w][\w0-9_.+-]+@[\w0-9-]+\.[\w0-9-.]+$"
if not re.match(email_regex, value):
raise FieldError('"{}" not a valid email address'.format(value))
def sanitize_data(self, value):
"""method used to convert to SQL data"""
if isinstance(value, bool) or value is None:
return value
raise FieldError("not correct data for BooleanField")