FloatPreference can be initialized with either int or float (#266)

This fixes issue #265

Author: CharlesB2

dynamic_preferences/serializers.py

@@ -159,9 +159,9 @@ class FloatSerializer(BaseSerializer):
 
     @classmethod
     def clean_to_db_value(cls, value):
-        if not isinstance(value, float):
-            raise cls.exception('FloatSerializer can only serialize Float instances')
-        return value
+        if not isinstance(value, (int, float)):
+            raise cls.exception('FloatSerializer can only serialize float or int values')
+        return float(value)
 
     @classmethod
     def to_python(cls, value, **kwargs):

tests/test_serializers.py

@@ -63,6 +63,8 @@ def test_float_serialization(self):
 
         self.assertEqual(s.serialize(1.0), "1.0")
         self.assertEqual(s.serialize(-1.0), "-1.0")
+        self.assertEqual(s.serialize(1), "1.0")
+        self.assertEqual(s.serialize(-1), "-1.0")
         self.assertEqual(s.serialize(-666.6), "-666.6")
         self.assertEqual(s.serialize(666.6), "666.6")