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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Decouple Transaction from Connection","articleBody":"~~After #509 is in,~~ We need to decouple `Transaction` from `Connection`  and allow `Transaction` to inherit from `Batch`.\n\nThings to be done\n-   [x] Change `Transaction` to inherit from `Batch` (#516)\n-   [x] Track \"active\" batches / transactions in a thread-local stack (#518)\n-   [x] Replace `Key.get()` with top-level `datastore.get()` (#520, #521, #522)\n-   [x] Replace `Entity.save()` with top-level `datastore.put()` (#548)\n-   [x] Replace `Key.delete()` witg top-level `datastore.delete()` (#522)\n-   [x] Remove non-RPC methods `save_entity()` and `delete_entities()` from `Connection` (#550)\n-   [x] Remove `Connection.mutation()`. (#550)\n-   [x] Remove `Connection.transaction()` (#550)\n\nAlso relevant: #447 (`Transaction` and `Batch` should not have a `dataset_id` until they have objects to work with)\n\n---\n\nFor reference, RPC [methods](https://github.com/GoogleCloudPlatform/google-cloud-datastore/blob/21e029b2657ebb15fef5429c90c4315326855fd1/proto/datastore_v1.proto#L573) are:\n- Lookup\n- RunQuery\n- BeginTransaction\n- Commit\n- Rollback\n- AllocateIds\n","author":{"url":"https://github.com/dhermes","@type":"Person","name":"dhermes"},"datePublished":"2015-01-08T18:14:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/514/google-cloud-python/issues/514"}