MAINT:dynamic_preferences serializers.py - Exception handling for class ModelMultipleSerializer; types.py - handle queryset in api_reprs of ModelChoicePreference (#243)

Author: BRimmler

dynamic_preferences/serializers.py

@@ -246,8 +246,12 @@ def to_python(self, value, **kwargs):
         if value in EMPTY_VALUES:
             return self.model.objects.none()
 
-        pks = value.split(",")
-        return self.model.objects.filter(pk__in=pks)
+        try:
+            pks = value.split(",")
+            pks = [int(i) for i in pks]
+            return self.model.objects.filter(pk__in=pks)    
+        except:
+            raise self.exception("Array {0} cannot be converted to int".format(value))
 
 
 class PreferenceFieldFile(FieldFile):

dynamic_preferences/types.py

@@ -336,6 +336,8 @@ def get_field_kwargs(self):
     def api_repr(self, value):
         if not value:
             return None
+        if value.__class__.__name__=='QuerySet':
+            return [val.pk for val in value]
         return value.pk