add constructed bundles to constraints, minor refatoring

app/helpers/service_helper.py

@@ -16,6 +16,10 @@ def items_csv_to_dict(items_csv_reader, irt_model):
       for key, col in enumerate(headers):
         if key == 0:
           item[col] = row[key]
+        if key == 2:
+          # make sure id exists
+          if row[key]:
+            item['passage'] = row[key]
         # b param - tmep fix! use irt model b param for proper reference
         elif key == (1 - len(headers)):
           item['b_param'] = row[key]