From b52e9a9b34411b67d264d4c0a6d4d2c3f2ef76d9 Mon Sep 17 00:00:00 2001
From: Michael Cyrulnik <lifto@mac.com>
Date: Thu, 17 Oct 2013 11:17:22 -0400
Subject: [PATCH] add BigInt column

---
 cqlengine/columns.py                       |  4 ++++
 cqlengine/tests/columns/test_validation.py | 11 +++++++++++
 cqlengine/tests/columns/test_value_io.py   |  6 ++++++
 docs/topics/columns.rst                    |  8 +++++++-
 4 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/cqlengine/columns.py b/cqlengine/columns.py
index 10a5e1b9..8781e62f 100644
--- a/cqlengine/columns.py
+++ b/cqlengine/columns.py
@@ -252,6 +252,10 @@ class Integer(Column):
         return self.validate(value)
 
 
+class BigInt(Integer):
+    db_type = 'bigint'
+
+
 class VarInt(Column):
     db_type = 'varint'
 
diff --git a/cqlengine/tests/columns/test_validation.py b/cqlengine/tests/columns/test_validation.py
index 3c6c6656..b89e4a91 100644
--- a/cqlengine/tests/columns/test_validation.py
+++ b/cqlengine/tests/columns/test_validation.py
@@ -15,6 +15,7 @@ from cqlengine.columns import Bytes
 from cqlengine.columns import Ascii
 from cqlengine.columns import Text
 from cqlengine.columns import Integer
+from cqlengine.columns import BigInt
 from cqlengine.columns import VarInt
 from cqlengine.columns import DateTime
 from cqlengine.columns import Date
@@ -180,6 +181,16 @@ class TestInteger(BaseCassEngTestCase):
         it = self.IntegerTest()
         it.validate()
 
+class TestBigInt(BaseCassEngTestCase):
+    class BigIntTest(Model):
+        test_id = UUID(primary_key=True, default=lambda:uuid4())
+        value   = BigInt(default=0, required=True)
+
+    def test_default_zero_fields_validate(self):
+        """ Tests that bigint columns with a default value of 0 validate """
+        it = self.BigIntTest()
+        it.validate()
+
 class TestText(BaseCassEngTestCase):
 
     def test_min_length(self):
diff --git a/cqlengine/tests/columns/test_value_io.py b/cqlengine/tests/columns/test_value_io.py
index 1c822a9e..54d8f5d5 100644
--- a/cqlengine/tests/columns/test_value_io.py
+++ b/cqlengine/tests/columns/test_value_io.py
@@ -95,6 +95,12 @@ class TestInteger(BaseColumnIOTest):
     pkey_val = 5
     data_val = 6
 
+class TestBigInt(BaseColumnIOTest):
+
+    column = columns.BigInt
+    pkey_val = 6
+    data_val = pow(2, 63) - 1
+
 class TestDateTime(BaseColumnIOTest):
 
     column = columns.DateTime
diff --git a/docs/topics/columns.rst b/docs/topics/columns.rst
index 6d04df64..0f71e3c7 100644
--- a/docs/topics/columns.rst
+++ b/docs/topics/columns.rst
@@ -38,10 +38,16 @@ Columns
 
 .. class:: Integer()
 
-    Stores an integer value ::
+    Stores a 32-bit signed integer value ::
 
         columns.Integer()
 
+.. class:: BigInt()
+
+    Stores a 64-bit signed long value ::
+
+        columns.BigInt()
+
 .. class:: VarInt()
 
     Stores an arbitrary-precision integer ::