Rewrite of Comic lists so that tehy have thumbnails. (#26)

comic/migrations/0024_auto_20210422_0855.py

@@ -0,0 +1,29 @@
+# Generated by Django 3.2 on 2021-04-22 07:55
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('comic', '0023_directory_thumbnail'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='comicbook',
+            name='thumbnail_index',
+            field=models.PositiveIntegerField(default=0),
+        ),
+        migrations.AddField(
+            model_name='directory',
+            name='thumbnail_index',
+            field=models.PositiveIntegerField(default=0),
+        ),
+        migrations.AddField(
+            model_name='directory',
+            name='thumbnail_issue',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='directory_thumbnail_issue', to='comic.comicbook'),
+        ),
+    ]