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Title: Transaction does not get rolled back if exception happens during commit. · Issue #457 · googleapis/google-cloud-python · GitHub

Open Graph Title: Transaction does not get rolled back if exception happens during commit. · Issue #457 · googleapis/google-cloud-python

X Title: Transaction does not get rolled back if exception happens during commit. · Issue #457 · googleapis/google-cloud-python

Description: For example: # >>> entity.kind() # 'Knd' with datastore.transaction.Transaction(): # entity1 has an incomplete key, hence the delete fails entity1.delete() # Exception: Request failed. Error was: Key path element must not be incomplete: ...

Open Graph Description: For example: # >>> entity.kind() # 'Knd' with datastore.transaction.Transaction(): # entity1 has an incomplete key, hence the delete fails entity1.delete() # Exception: Request failed. Error was: K...

X Description: For example: # >>> entity.kind() # 'Knd' with datastore.transaction.Transaction(): # entity1 has an incomplete key, hence the delete fails entity1.delete() # Exception: Request fai...

Opengraph URL: https://github.com/googleapis/google-cloud-python/issues/457

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Domain: github.com

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Transaction does not get rolled back if exception happens during commit.","articleBody":"For example:\n\n```\n# \u003e\u003e\u003e entity.kind()\n# 'Knd'\nwith datastore.transaction.Transaction():\n    # entity1 has an incomplete key, hence the delete fails\n    entity1.delete()\n# Exception: Request failed. Error was: Key path element must not be incomplete: [Knd: ]\n\nwith datastore.transaction.Transaction():\n    entity2.save()\n# ValueError: Cannot start a transaction with another already in progress. \n```\n\nMaybe this isn't such a big deal since most code will stop working after the first uncaught exception? The only reason I noticed is because using a test-runner, the exception is caught and printed, but the process just moves on to the next.\n","author":{"url":"https://github.com/dhermes","@type":"Person","name":"dhermes"},"datePublished":"2014-12-23T00:36:48.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/457/google-cloud-python/issues/457"}

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