class Entity:
def __init__(self):
self.field_names = Entity.get_field_names()
self.errors = ErrorBag()
def validate(self, field_name=None):
if field_name is None:
field_names = self.__class__.get_field_names()
for field_name in field_names:
self.validate(field_name)
else:
if hasattr(self.__class__, field_name):
field = getattr(self.__class__, field_name)
if isinstance(field, Field):
field.validate(field_name, self)
def field_exist(self, name: str) -> bool:
return name in self.field_names
def add_error(self, field: str, value: str):
self.errors.add(field, value)
def has_error(self, field: str = None) -> bool:
if field is None:
field_names = self.__class__.get_field_names()
for field_name in field_names:
if (self.has_error(field_name)):
return True
return False
else:
return self.errors.has_error(field)
def get_error_first(self, field: str) -> str:
return self.errors.first(field)
@classmethod
def get_field_names(cls):
ret = []
for field_name in vars(cls):
# if it is not ignored and it is an instance of field, we must inspect it
if isinstance(getattr(cls, field_name), Field):
# initialize the field names
ret.append(field_name)
return ret
def __init__(self):
self.field_names = Entity.get_field_names()
self.errors = ErrorBag()
