New ArchiveExport model and django associated migration file.

Author: TontonSancho

colander/core/migrations/0055_archiveexport.py

@@ -0,0 +1,58 @@
+# Generated by Django 4.2.20 on 2025-10-06 13:35
+
+import colander.core.models
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0054_alter_case_parent_case_alter_entity_thumbnail_and_more"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ArchiveExport",
+            fields=[
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        help_text="Unique identifier.",
+                        primary_key=True,
+                        serialize=False,
+                    ),
+                ),
+                (
+                    "type",
+                    models.CharField(
+                        choices=[("UNSPECIFIED", "UNSPECIFIED"), ("CASE", "CASE")],
+                        default="UNSPECIFIED",
+                        help_text="Export type.",
+                        max_length=16,
+                        verbose_name="Export type",
+                    ),
+                ),
+                ("requested_at", models.DateTimeField(auto_now_add=True, help_text="Export request date.")),
+                ("done_at", models.DateTimeField(editable=False, help_text="Export done date.")),
+                (
+                    "file",
+                    models.FileField(
+                        blank=True, max_length=512, null=True, upload_to=colander.core.models._get_export_file_dir
+                    ),
+                ),
+                (
+                    "case",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="%(app_label)s_%(class)s_related",
+                        related_query_name="%(app_label)s_%(class)ss",
+                        to="core.case",
+                    ),
+                ),
+            ],
+        ),
+    ]

colander/core/models.py

@@ -86,6 +86,13 @@ class TlpPap:
             (WHITE, 'WHITE'),
         ]
 
+    class ExportType:
+        UNSPECIFIED = 'UNSPECIFIED'
+        CASE = 'CASE'
+        EXPORT_TYPE_CHOICES = [
+            (UNSPECIFIED, 'UNSPECIFIED'),
+            (CASE, 'CASE'),
+        ]
 
 def list_accepted_levels(input_level: str):
     triggered = False
@@ -2589,6 +2596,57 @@ def delete_dropped_file_stored_file(sender, instance: DroppedFile, using, **kwar
     instance.file.delete()
 
 
+def _get_export_file_dir(instance, filename):
+    case_id = instance.case.id
+    return f'cases/{case_id}/exports/{instance.id}'
+
+
+class ArchiveExport(models.Model):
+    id = models.UUIDField(
+        primary_key=True,
+        default=uuid.uuid4,
+        help_text=_('Unique identifier.'),
+        editable=False
+    )
+
+    case = models.ForeignKey(
+        Case,
+        on_delete=models.CASCADE,
+        related_name="%(app_label)s_%(class)s_related",
+        related_query_name="%(app_label)s_%(class)ss",
+    )
+
+    type = models.CharField(
+        max_length=16,
+        choices=Appendix.ExportType.EXPORT_TYPE_CHOICES,
+        help_text=_('Export type.'),
+        verbose_name='Export type',
+        default=Appendix.ExportType.UNSPECIFIED,
+    )
+
+    requested_at = models.DateTimeField(
+        auto_now_add=True,
+        help_text=_('Export request date.'),
+        editable=False
+    )
+
+    done_at = models.DateTimeField(
+        help_text=_('Export done date.'),
+        editable=False
+    )
+
+    file = models.FileField(
+        upload_to=_get_export_file_dir,
+        max_length=512,
+        blank=True, null=True
+    )
+
+
+@receiver(pre_delete, sender=ArchiveExport, dispatch_uid='delete_export_file')
+def delete_dropped_file_stored_file(sender, instance: ArchiveExport, using, **kwargs):
+    instance.file.delete()
+
+
 colander_models = CaseInsensitiveDict({
     'Case': Case,
     'Actor': Actor,