Method validate

mongoengine/fields.py:687–690

(self, value)

                instance._data[self.name] = value

    def validate(self, value):
        value = self.to_python(value)
        if not isinstance(value, datetime.datetime):
            self.error("Only datetime objects may used in a ComplexDateTimeField")

    def to_python(self, value):
        original_value = value