Adding Transaction.dataset_id property.

Author: dhermes

gcloud/datastore/test_transaction.py

@@ -44,8 +44,8 @@ def test_ctor(self):
         _DATASET = 'DATASET'
         connection = _Connection()
         xact = self._makeOne(dataset_id=_DATASET, connection=connection)
-        self.assertEqual(xact._dataset_id, _DATASET)
-        self.assertEqual(xact._connection, connection)
+        self.assertEqual(xact.dataset_id, _DATASET)
+        self.assertEqual(xact.connection, connection)
         self.assertEqual(xact.id, None)
         self.assertTrue(isinstance(xact.mutation, Mutation))
         self.assertEqual(len(xact._auto_id_entities), 0)
@@ -61,8 +61,8 @@ def test_ctor_with_env(self):
                      CONNECTION=CONNECTION):
             transaction = self._makeOne()
 
-        self.assertEqual(transaction._dataset_id, DATASET_ID)
-        self.assertEqual(transaction._connection, CONNECTION)
+        self.assertEqual(transaction.dataset_id, DATASET_ID)
+        self.assertEqual(transaction.connection, CONNECTION)
 
     def test_add_auto_id_entity(self):
         entity = _Entity()

gcloud/datastore/transaction.py

@@ -143,9 +143,18 @@ def __init__(self, dataset_id=None, connection=None):
         self._mutation = datastore_pb.Mutation()
         self._auto_id_entities = []
 
+    @property
+    def dataset_id(self):
+        """Getter for dataset ID in which the transaction will run.
+
+        :rtype: :class:`str`
+        :returns: The dataset ID in which the transaction will run.
+        """
+        return self._dataset_id
+
     @property
     def connection(self):
-        """Getter for current connection over which the transaction will run.
+        """Getter for connection over which the transaction will run.
 
         :rtype: :class:`gcloud.datastore.connection.Connection`
         :returns: The connection over which the transaction will run.