Refactor rolling stock

dcc/roster/migrations/0026_rollingstockdocument_delete_image.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.0.2 on 2022-03-29 20:21
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('roster', '0025_alter_rollingstockimage_options_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='RollingStockDocument',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('file', models.ImageField(blank=True, null=True, upload_to='files/')),
+                ('rolling_stock', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='roster.rollingstock')),
+            ],
+            options={
+                'unique_together': {('rolling_stock', 'file')},
+            },
+        ),
+        migrations.DeleteModel(
+            name='Image',
+        ),
+    ]