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[1.7.x] Wrapped migrations in a transaction only on DBs with transactional DDL.
Backport of e74d2183
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@ -71,14 +71,16 @@ class BaseDatabaseSchemaEditor(object):
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def __enter__(self):
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self.deferred_sql = []
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atomic(self.connection.alias, self.connection.features.can_rollback_ddl).__enter__()
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if self.connection.features.can_rollback_ddl:
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atomic(self.connection.alias).__enter__()
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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if exc_type is None:
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for sql in self.deferred_sql:
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self.execute(sql)
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atomic(self.connection.alias, self.connection.features.can_rollback_ddl).__exit__(exc_type, exc_value, traceback)
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if self.connection.features.can_rollback_ddl:
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atomic(self.connection.alias).__exit__(exc_type, exc_value, traceback)
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# Core utility functions
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