Added integer coercion for NumberRangeType

CHANGES.rst

@@ -8,6 +8,7 @@ Here you can see the full list of changes between each SQLAlchemy-Utils release.
 ^^^^^^^^^^^^^^^^^^^
 
 - Added JSONType
+- NumberRangeType now supports coercing of integer values
 
 
 0.19.0 (2013-10-24)

sqlalchemy_utils/types/number_range.py

@@ -73,8 +73,10 @@ class NumberRangeType(types.TypeDecorator, ScalarCoercible):
         if value is not None and not isinstance(value, NumberRange):
             if isinstance(value, six.string_types):
                 value = NumberRange.from_normalized_str(value)
+            elif isinstance(value, six.integer_types):
+                value = NumberRange(value, value)
             else:
-                raise TypeError
+                raise TypeError('Could not coerce value to NumberRange.')
         return value
 
 

tests/types/test_number_range.py

@@ -48,11 +48,16 @@ class TestNumberRangeType(TestCase):
         building = self.session.query(self.Building).first()
         assert building.persons_at_night is None
 
-    def test_scalar_attributes_get_coerced_to_objects(self):
+    def test_string_coercion(self):
         building = self.Building(persons_at_night='[12, 18]')
 
         assert isinstance(building.persons_at_night, NumberRange)
 
+    def test_integer_coercion(self):
+        building = self.Building(persons_at_night=15)
+        assert building.persons_at_night.min_value == 15
+        assert building.persons_at_night.max_value == 15
+
 
 class TestNumberRange(object):
     def test_equality_operator(self):