model_checks.py 文件源码

def check_all_models(app_configs=None, **kwargs):
    errors = []
    if app_configs is None:
        models = apps.get_models()
    else:
        models = chain.from_iterable(app_config.get_models() for app_config in app_configs)
    for model in models:
        if not inspect.ismethod(model.check):
            errors.append(
                Error(
                    "The '%s.check()' class method is currently overridden by %r."
                    % (model.__name__, model.check),
                    obj=model,
                    id='models.E020'
                )
            )
        else:
            errors.extend(model.check(**kwargs))
    return errors