Add support for generic documents (admin only) (#44)

* Add support for generic documents
* Add publish / unpublish actions
* Minor improvements to models properties

ram/metadata/migrations/0021_genericdocument.py

@@ -0,0 +1,40 @@
+# Generated by Django 5.1.4 on 2025-01-17 09:31
+
+import ram.utils
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("metadata", "0020_alter_decoderdocument_unique_together_and_more"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="GenericDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                ("private", models.BooleanField(default=False)),
+                ("tags", models.ManyToManyField(blank=True, to="metadata.tag")),
+            ],
+            options={
+                "verbose_name_plural": "Generic Documents",
+            },
+        ),
+    ]