Changed work of shelf books

backend/apps/books/migrations/0001_initial.py

@@ -0,0 +1,28 @@
+# Generated by Django 6.0.3 on 2026-03-22 12:16
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('authors', '0001_initial'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Book',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+                ('isbn', models.CharField(max_length=13)),
+                ('authors', models.ManyToManyField(related_name='books', to='authors.author')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='books', to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

backend/apps/books/models.py

@@ -1,6 +1,5 @@
 from django.db import models
 
-from apps.shelves.models import Shelf
 from apps.authors.models import Author
 from apps.user.models import User
 

backend/apps/books/serializers.py

@@ -1,26 +1,17 @@
 from rest_framework import serializers
 
-from apps.shelves.serializers import ShelfSerializer
 from apps.authors.serializers import AuthorSerializer
 from apps.books.models import Book
-from apps.shelves.models import Shelf
 from apps.authors.models import Author
 
 class BookSerializer(serializers.ModelSerializer):
-    shelf = ShelfSerializer(read_only=True)
-    shelf_id = serializers.PrimaryKeyRelatedField(
-        queryset=Shelf.objects.all(),
-        source="shelf", 
-        write_only=True
-    )
-    
     authors = AuthorSerializer(many=True, read_only=True)
     authors_id = serializers.PrimaryKeyRelatedField(
         queryset=Author.objects.all(),
         source="authors",
         many=True,
-        allow_null=True,
-        write_only=True
+        write_only=True,
+        required=False
     )
     
     class Meta: 
@@ -28,27 +19,23 @@ class BookSerializer(serializers.ModelSerializer):
         fields = [
             "id",
             "name",
-            "isbn", 
-            "shelf",
-            "shelf_id",
+            "isbn",
             "authors",
             "authors_id"
         ]
         read_only_fields = ["id"]
     
 
-    def __init__(self, instance=None, data=..., **kwargs):
-        super().__init__(instance, data, **kwargs)
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
 
         request = self.context.get("request")        
-        if request and request.user:
-            self.fields["shelf_id"].queryset = Shelf.objects.filter(
-                user=request.user
-            )
-
+        if request and request.user and request.user.is_authenticated:
             self.fields["authors_id"].queryset = Author.objects.filter(
                 user=request.user
             )
+        else:
+            self.fields["authors_id"].queryset = Author.objects.none()
 
             
     def create(self, validated_data):

backend/apps/books/views.py

@@ -14,6 +14,5 @@ class BooksViewSet(viewsets.ModelViewSet):
     permission_classes = [IsAuthenticated]
 
     def get_queryset(self):
-        return self.queryset.filter(
-            shelf__user_id=self.request.user.pk
-        ).prefetch_related("authors")
+        return self.queryset.filter(user=self.request.user)
+