aiidateam / aiida_core / 4899

69%

develop: 74%

Pull #2387

travis-ci

Add a transaction context manager to backend

This allows to group operations that will be rolled back if the
context is exited with an exception. This is laying the groundwork for
implementing `Node` as part of the new backend system as links, caches,
etc will have to be done in a transaction.

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