added helpers to leverage for various libraries

app/helpers/service_helper.py

@@ -0,0 +1,45 @@
+import csv
+import io
+
+def items_csv_to_dict(items_csv_reader):
+  items = []
+  headers = []
+
+  # get headers and items
+  for key, row in enumerate(items_csv_reader):
+    if key == 0:
+      headers = row
+    else:
+      item = { 'attributes': [] }
+
+      for key, col in enumerate(headers):
+        if key == 0:
+          item[col] = row[key]
+        elif key > 1:
+          item['attributes'].append({
+            'id': col,
+            'value': row[key],
+            'type': 'metadata'
+          })
+
+      items.append(item)
+
+  return items
+
+def solution_to_file(buffer, total_form_items, forms):
+  wr = csv.writer(buffer, dialect='excel', delimiter=',')
+
+  # write header row for first row utilizing the total items all forms will have
+  # and the cut score as the last item
+  header = [x + 1 for x in range(total_form_items)] + ['cut score']
+  wr.writerow(header)
+
+  # add each form as row to processed csv
+  for form in forms:
+    # provide generated items and cut score
+    row = form.items + [form.cut_score]
+    wr.writerow(row)
+
+  buff2 = io.BytesIO(buffer.getvalue().encode())
+
+  return buff2