Method _check_fix_default_value

django/db/models/fields/__init__.py:1620–1632

Warn that using an actual date or datetime value is probably wrong; it's only evaluated on server startup.

(self)

    # __init__ is inherited from DateField

    def _check_fix_default_value(self):
        """
        Warn that using an actual date or datetime value is probably wrong;
        it's only evaluated on server startup.
        """
        if not self.has_default():
            return []

        value = self.default
        if isinstance(value, (datetime.datetime, datetime.date)):
            return self._check_if_value_fixed(value)
        # No explicit date / datetime value -- no checks necessary.
        return []

    def get_internal_type(self):
        return "DateTimeField"