How to use _wrap_generator_with_readonly method in autotest

Best Python code snippet using autotest_python

model_logic.py

Source:model_logic.py Github

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...17 finally:18 readonly_connection.connection().unset_django_connection()19 wrapper_method.__name__ = method.__name__20 return wrapper_method21def _wrap_generator_with_readonly(generator):22 """23 We have to wrap generators specially. Assume it performs24 the query on the first call to next().25 """26 def wrapper_generator(*args, **kwargs):27 generator_obj = generator(*args, **kwargs)28 readonly_connection.connection().set_django_connection()29 try:30 first_value = generator_obj.next()31 finally:32 readonly_connection.connection().unset_django_connection()33 yield first_value34 while True:35 yield generator_obj.next()36 wrapper_generator.__name__ = generator.__name__37 return wrapper_generator38def _make_queryset_readonly(queryset):39 """40 Wrap all methods that do database queries with a readonly connection.41 """42 db_query_methods = ['count', 'get', 'get_or_create', 'latest', 'in_bulk',43 'delete']44 for method_name in db_query_methods:45 method = getattr(queryset, method_name)46 wrapped_method = _wrap_with_readonly(method)47 setattr(queryset, method_name, wrapped_method)48 queryset.iterator = _wrap_generator_with_readonly(queryset.iterator)49class ReadonlyQuerySet(dbmodels.query.QuerySet):50 """51 QuerySet object that performs all database queries with the read-only52 connection.53 """54 def __init__(self, model=None):55 super(ReadonlyQuerySet, self).__init__(model)56 _make_queryset_readonly(self)57 def values(self, *fields):58 return self._clone(klass=ReadonlyValuesQuerySet, _fields=fields)59class ReadonlyValuesQuerySet(dbmodels.query.ValuesQuerySet):60 def __init__(self, model=None):61 super(ReadonlyValuesQuerySet, self).__init__(model)62 _make_queryset_readonly(self)...

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