def value_to_db_date(self, value):
        if value is None:
            return None
        return datetime_safe.new_date(value).strftime('%Y-%m-%d')
Run a script that logs messages and uses ``FlockerScriptRunner``.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/db/backends/__init__.py/BaseDatabaseOperations.value_to_db_date--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/common/functional/test_script.py/FlockerScriptRunnerTests.run_script