Finalizes the migration

src/documents/migrations/1055_alter_storagepath_path.py

@@ -1,7 +1,7 @@
-# Generated by Django 5.1.1 on 2024-10-01 20:42
-
+# Generated by Django 5.1.1 on 2024-10-03 14:47
 
 from django.db import migrations
+from django.db import models
 from django.db import transaction
 
 
@@ -20,13 +20,17 @@ def convert_from_format_to_template(apps, schema_editor):
 
 class Migration(migrations.Migration):
     dependencies = [
-        ("documents", "1053_document_page_count"),
+        ("documents", "1054_customfieldinstance_value_monetary_amount_and_more"),
     ]
 
     operations = [
+        migrations.AlterField(
+            model_name="storagepath",
+            name="path",
+            field=models.CharField(max_length=2048, verbose_name="path"),
+        ),
         migrations.RunPython(
             convert_from_format_to_template,
-            # This is a one way migration
             migrations.RunPython.noop,
         ),
     ]

src/documents/models.py

@@ -127,7 +127,7 @@ class DocumentType(MatchingModel):
 class StoragePath(MatchingModel):
     path = models.CharField(
         _("path"),
-        max_length=512,
+        max_length=2048,
     )
 
     class Meta(MatchingModel.Meta):

src/documents/tests/test_migration_storage_path_template.py

@@ -0,0 +1,30 @@
+from documents.models import StoragePath
+from documents.tests.utils import TestMigrations
+
+
+class TestMigrateStoragePathToTemplate(TestMigrations):
+    migrate_from = "1054_customfieldinstance_value_monetary_amount_and_more"
+    migrate_to = "1055_alter_storagepath_path"
+
+    def setUpBeforeMigration(self, apps):
+        self.old_format = StoragePath.objects.create(
+            name="sp1",
+            path="Something/{title}",
+        )
+        self.new_format = StoragePath.objects.create(
+            name="sp2",
+            path="{{asn}}/{{title}}",
+        )
+        self.no_formatting = StoragePath.objects.create(
+            name="sp3",
+            path="Some/Fixed/Path",
+        )
+
+    def test_migrate_old_to_new_storage_path(self):
+        self.old_format.refresh_from_db()
+        self.new_format.refresh_from_db()
+        self.no_formatting.refresh_from_db()
+
+        self.assertEqual(self.old_format.path, "Something/{{ title }}")
+        self.assertEqual(self.new_format.path, "{{asn}}/{{title}}")
+        self.assertEqual(self.no_formatting.path, "Some/Fixed/Path")