Add default normalize logic for API views

and use common logic for getting field list in traditional Form class

tailbone/api/master.py

@@ -28,7 +28,10 @@ from __future__ import unicode_literals, absolute_import
 
 import json
 
+import six
+
 from rattail.config import parse_bool
+from rattail.db.util import get_fieldnames
 
 from cornice import resource, Service
 
@@ -268,6 +271,21 @@ class APIMasterView(APIView):
         query = self.Session.query(cls)
         return query
 
+    def get_fieldnames(self):
+        if not hasattr(self, '_fieldnames'):
+            self._fieldnames = get_fieldnames(
+                self.rattail_config, self.model_class,
+                columns=True, proxies=True, relations=False)
+        return self._fieldnames
+
+    def normalize(self, obj):
+        data = {'_str': six.text_type(obj)}
+
+        for field in self.get_fieldnames():
+            data[field] = getattr(obj, field)
+
+        return data
+
     def _collection_get(self):
         from sqlalchemy_filters import apply_filters, apply_sort, apply_pagination