def validate(self, value, render_path):
found = 0
for item in value:
result = self._find_element_to_render(item)
if result:
found += 1
if not found and not self.is_optional:
raise ValidationError("Missing choice values", path=render_path)
def validate(self, value, render_path):
for item in value:
if item is NotSet:
raise ValidationError("No value set", path=render_path)
def validate(self, value, required=False):
if required and value is None:
raise ValidationError("Value is required")