Extend the bookshelf implementation

ram/bookshelf/migrations/0003_bookimage.py

@@ -0,0 +1,51 @@
+# Generated by Django 4.2.5 on 2023-10-02 10:36
+
+from django.db import migrations, models
+import django.db.models.deletion
+import ram.utils
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookshelf", "0002_book_language_book_numbers_of_pages_and_more"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="BookImage",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("order", models.PositiveIntegerField(default=0)),
+                (
+                    "image",
+                    models.ImageField(
+                        blank=True,
+                        null=True,
+                        storage=ram.utils.DeduplicatedStorage,
+                        upload_to="images/books/",
+                    ),
+                ),
+                (
+                    "book",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="image",
+                        to="bookshelf.book",
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ["order"],
+                "abstract": False,
+            },
+        ),
+    ]