Add file migration

nummi/main/migrations/0023_auto_20221231_1741.py

@@ -0,0 +1,63 @@
+# Generated by Django 4.1.4 on 2022-12-31 16:41
+
+import pathlib
+
+from django.conf import settings
+from django.db import migrations
+
+import main.models
+
+
+def move_files(apps, schema_editor):
+    Invoice = apps.get_model("main", "Invoice")
+    Snapshot = apps.get_model("main", "Snapshot")
+
+    for invoice in Invoice.objects.all():
+        print(invoice.pk)
+        if invoice.file is None:
+            invoice.delete()
+            continue
+        try:
+            initial_path = pathlib.Path(invoice.file.path)
+        except ValueError:
+            invoice.delete()
+            continue
+        if invoice.file is None or not initial_path.exists():
+            print(f"!!! Path {initial_path} does not exist")
+            invoice.delete()
+            continue
+        _name = main.models.get_path(invoice, None)
+        new_path = pathlib.Path(settings.MEDIA_ROOT, _name)
+        new_path.parent.mkdir(mode=0o750, parents=True, exist_ok=True)
+        initial_path.rename(new_path)
+        invoice.file.name = str(_name)
+        invoice.save()
+
+    for snapshot in Snapshot.objects.filter(file__isnull=False):
+        print(snapshot.pk)
+        try:
+            initial_path = pathlib.Path(snapshot.file.path)
+        except ValueError:
+            snapshot.file = None
+            snapshot.save()
+            continue
+        if not initial_path.exists():
+            print(f"!!! Path {initial_path} does not exist")
+            snapshot.file = None
+            snapshot.save()
+            continue
+        _name = main.models.get_path(snapshot, None)
+        new_path = pathlib.Path(settings.MEDIA_ROOT, _name)
+        new_path.parent.mkdir(mode=0o750, parents=True, exist_ok=True)
+        initial_path.rename(new_path)
+        snapshot.file.name = str(_name)
+        snapshot.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("main", "0022_alter_account_icon_alter_category_icon"),
+    ]
+
+    operations = [migrations.RunPython(move_files)]

nummi/main/models.py

@@ -34,7 +34,7 @@ class CustomModel(UserModel):
 def get_path(instance, filename):
     return pathlib.Path(
         "user",
-        str(instance.user.get_username()),
+        str(instance.user.username),
         instance._meta.model_name,
         str(instance.pk),
     ).with_suffix(".pdf")