⬆️ make filingcabinet compatible with treebeard v5

Author: krmax44

pyproject.toml

@@ -12,7 +12,7 @@ dependencies = [
   "django-json-widget",
   "jsonschema",
   "django-taggit>=2",
-  "django-treebeard",
+  "django-treebeard>=5",
   "djangorestframework",
   "reportlab",
   "celery",

src/filingcabinet/migrations/0026_auto_20220920_1828.py

@@ -13,8 +13,11 @@ class MP_AddHandler:
     def __init__(self):
         self.stmts = []
 
-
-NUM = NumConv(len(ALPHABET), ALPHABET)
+# inspired by https://github.com/django-cms/django-cms/commit/e0e55e59be84d4a3ee070aefcda7995cc1383afa
+try:
+    NUM = NumConv(len(ALPHABET), ALPHABET)
+except TypeError:
+    NUM = NumConv( ALPHABET) 
 
 
 def _int2str(num):