added the filename handling back into the code

src/documents/management/commands/document_renamer.py

@@ -0,0 +1,24 @@
+from django.core.management.base import BaseCommand
+
+from documents.models import Document, Tag
+
+from ...mixins import Renderable
+
+
+class Command(Renderable, BaseCommand):
+
+    help = """
+        This will rename all documents to match the latest filename format.
+    """.replace("    ", "")
+
+    def __init__(self, *args, **kwargs):
+        self.verbosity = 0
+        BaseCommand.__init__(self, *args, **kwargs)
+
+    def handle(self, *args, **options):
+
+        self.verbosity = options["verbosity"]
+
+        for document in Document.objects.all():
+            # Saving the document again will generate a new filename and rename
+            document.save()