updating batch query to work with 1.2

cqlengine/query.py

@@ -126,22 +126,20 @@ class LessThanOrEqualOperator(QueryOperator):
     symbol = "LTE"
     cql_symbol = '<='
 
-class Consistency(object):
+class BatchType(object):
-    ANY = 'ANY'
+    Unlogged    = 'UNLOGGED'
-    ONE = 'ONE'
+    Counter     = 'COUNTER'
-    QUORUM = 'QUORUM'
-    LOCAL_QUORUM = 'LOCAL_QUORUM'
-    EACH_QUORUM = 'EACH_QUORUM'
-    ALL = 'ALL'
 
 class BatchQuery(object):
     """
     Handles the batching of queries
+
+    http://www.datastax.com/docs/1.2/cql_cli/cql/BATCH
     """
 
-    def __init__(self, consistency=None, timestamp=None):
+    def __init__(self, batch_type=None, timestamp=None):
         self.queries = []
-        self.consistency = consistency
+        self.batch_type = batch_type
         if timestamp is not None and not isinstance(timestamp, datetime):
             raise CQLEngineException('timestamp object must be an instance of datetime')
         self.timestamp = timestamp
@@ -150,13 +148,11 @@ class BatchQuery(object):
         self.queries.append((query, params))
 
     def execute(self):
-        opener = 'BEGIN BATCH'
+        opener = 'BEGIN ' + (self.batch_type + ' ' if self.batch_type else '') + ' BATCH'
-        if self.consistency:
-            opener += ' USING CONSISTENCY {}'.format(self.consistency)
         if self.timestamp:
             epoch = datetime(1970, 1, 1)
             ts = long((self.timestamp - epoch).total_seconds() * 1000)
-            opener += ' TIMESTAMP {}'.format(ts)
+            opener += ' USING TIMESTAMP {}'.format(ts)
 
         query_list = [opener]
         parameters = {}

cqlengine/tests/query/test_batch_query.py

@@ -0,0 +1,106 @@
+from datetime import datetime
+from unittest import skip
+from uuid import uuid4
+import random
+from cqlengine import Model, columns
+from cqlengine.management import delete_table, create_table
+from cqlengine.query import BatchQuery
+from cqlengine.tests.base import BaseCassEngTestCase
+
+class TestMultiKeyModel(Model):
+    partition   = columns.Integer(primary_key=True)
+    cluster     = columns.Integer(primary_key=True)
+    count       = columns.Integer(required=False)
+    text        = columns.Text(required=False)
+
+class BatchQueryTests(BaseCassEngTestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        super(BatchQueryTests, cls).setUpClass()
+        delete_table(TestMultiKeyModel)
+        create_table(TestMultiKeyModel)
+
+    @classmethod
+    def tearDownClass(cls):
+        super(BatchQueryTests, cls).tearDownClass()
+        delete_table(TestMultiKeyModel)
+
+    def setUp(self):
+        super(BatchQueryTests, self).setUp()
+        self.pkey = 1
+        for obj in TestMultiKeyModel.filter(partition=self.pkey):
+            obj.delete()
+
+    def test_insert_success_case(self):
+
+        b = BatchQuery()
+        inst = TestMultiKeyModel.batch(b).create(partition=self.pkey, cluster=2, count=3, text='4')
+
+        with self.assertRaises(TestMultiKeyModel.DoesNotExist):
+            TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+
+        b.execute()
+
+        TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+
+    def test_update_success_case(self):
+
+        inst = TestMultiKeyModel.create(partition=self.pkey, cluster=2, count=3, text='4')
+
+        b = BatchQuery()
+
+        inst.count = 4
+        inst.batch(b).save()
+
+        inst2 = TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+        assert inst2.count == 3
+
+        b.execute()
+
+        inst3 = TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+        assert inst3.count == 4
+
+    def test_delete_success_case(self):
+
+        inst = TestMultiKeyModel.create(partition=self.pkey, cluster=2, count=3, text='4')
+
+        b = BatchQuery()
+
+        inst.batch(b).delete()
+
+        TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+
+        b.execute()
+
+        with self.assertRaises(TestMultiKeyModel.DoesNotExist):
+            TestMultiKeyModel.get(partition=self.pkey, cluster=2)
+
+    def test_context_manager(self):
+
+        with BatchQuery() as b:
+            for i in range(5):
+                TestMultiKeyModel.batch(b).create(partition=self.pkey, cluster=i, count=3, text='4')
+
+            for i in range(5):
+                with self.assertRaises(TestMultiKeyModel.DoesNotExist):
+                    TestMultiKeyModel.get(partition=self.pkey, cluster=i)
+
+        for i in range(5):
+            TestMultiKeyModel.get(partition=self.pkey, cluster=i)
+
+    def test_bulk_delete_success_case(self):
+
+        for i in range(1):
+            for j in range(5):
+                TestMultiKeyModel.create(partition=i, cluster=j, count=i*j, text='{}:{}'.format(i,j))
+
+        with BatchQuery() as b:
+            TestMultiKeyModel.objects.batch(b).filter(partition=0).delete()
+            assert TestMultiKeyModel.filter(partition=0).count() == 5
+
+        assert TestMultiKeyModel.filter(partition=0).count() == 0
+        #cleanup
+        for m in TestMultiKeyModel.all():
+            m.delete()
+

cqlengine/tests/test_batch_query.py

@@ -3,7 +3,7 @@ from uuid import uuid4
 import random
 from cqlengine import Model, columns
 from cqlengine.management import delete_table, create_table
-from cqlengine.query import BatchQuery, Consistency
+from cqlengine.query import BatchQuery
 from cqlengine.tests.base import BaseCassEngTestCase
 
 class TestMultiKeyModel(Model):