Added some logic

backend/apps/authentication/serializers.py

@@ -0,0 +1,37 @@
+from django.contrib.auth.password_validation import validate_password as django_validate_password
+from django.core.exceptions import ValidationError
+from rest_framework import serializers
+from apps.user.models import User
+
+
+class RegisterSerializer(serializers.ModelSerializer):
+    
+    class Meta:
+        model = User
+        fields = ["username", "email", "password"]
+        extra_kwargs = {
+            "password": {"write_only": True}
+        }
+
+    def validate_email(self, value):
+        if User.objects.filter(email=value).exists():
+            raise serializers.ValidationError("Email already taken")
+        return value
+
+    def validate_password(self, value):
+        try:
+            django_validate_password(value)
+        except ValidationError as error:
+            raise serializers.ValidationError(error.messages)
+
+        return value
+
+    def create(self, validated_data):
+        user = User.objects.create_user(
+            validated_data["username"], 
+            validated_data["email"], 
+            validated_data["password"]
+        )
+        
+        
+        return user

backend/apps/authentication/urls.py

@@ -5,9 +5,14 @@ from rest_framework_simplejwt.views import (
     TokenVerifyView
 )
 
+from apps.authentication.views import RegisterView 
+
 urlpatterns = [
     path('login/', TokenObtainPairView.as_view(), name='token_obtain_pair'),
-    #path('signup/', ),
+    path('register',  RegisterView.as_view()),
+    
+
+
 
     path('refresh/', TokenRefreshView.as_view(), name='token_refresh'),
     path('verify/', TokenVerifyView.as_view(), name='token_verify'),

backend/apps/authentication/views.py

@@ -1,3 +1,9 @@
-from django.shortcuts import render
+from rest_framework import generics
+
+from apps.authentication.serializers import RegisterSerializer
 
 # Create your views here.
+class RegisterView(generics.CreateAPIView):
+    serializer_class = RegisterSerializer
+    authentication_classes = []
+    permission_classes = []

backend/apps/authors/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/authors/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AuthorsConfig(AppConfig):
+    name = 'apps.authors'

backend/apps/authors/models.py

@@ -0,0 +1,6 @@
+from django.db import models
+from apps.user.models import User
+
+class Author(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="Authors")
+    name = models.CharField(max_length=255)

backend/apps/authors/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/authors/urls.py

@@ -0,0 +1,9 @@
+from rest_framework.routers import DefaultRouter
+
+from apps.authors.views import AuthorsViewSet
+
+urlpatterns = []
+
+router = DefaultRouter()
+router.register("", viewset=AuthorsViewSet)
+urlpatterns += router.urls

backend/apps/authors/views.py

@@ -0,0 +1,20 @@
+from rest_framework import viewsets
+
+from apps.authors.models import Author
+from apps.authors.serializers import AuthorSerializer
+from rest_framework import viewsets 
+from rest_framework.permissions import IsAuthenticated
+from rest_framework_simplejwt.authentication import JWTAuthentication
+
+class AuthorsViewSet(viewsets.ModelViewSet):
+    queryset = Author.objects.select_related("shelf")
+    serializer_class = AuthorSerializer
+
+    authentication_classes = [JWTAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        return self.queryset.filter(
+            shelf__user_id=self.request.user.pk
+        )
+

backend/apps/books/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/books/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class BooksConfig(AppConfig):
+    name = 'apps.books'

backend/apps/books/models.py

@@ -0,0 +1,11 @@
+from django.db import models
+
+from apps.shelves.models import Shelf
+from apps.authors.models import Author
+from apps.user.models import User
+
+class Book(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="Authors")
+    authors = models.ManyToManyField(Author, related_name="books")
+    name = models.CharField(max_length=255)
+    isbn = models.CharField(max_length=13)

backend/apps/books/serializers.py

@@ -0,0 +1,25 @@
+from rest_framework import serializers
+
+from apps.books.models import Book
+from apps.shelves.serializers import ShelfSerializer
+from apps.shelves.models import Shelf
+
+class BookSerializer(serializers.ModelSerializer):
+    #shelf = ShelfSerializer(read_only=True)
+    #shelf_id = serializers.PrimaryKeyRelatedField(
+        #queryset=Shelf.objects.all(),
+        #source="shelf", 
+        #write_only=True
+    #)
+    
+    
+    class Meta: 
+        model = Book
+        fields = [
+            "id",
+            "name",
+            "isbn", 
+            #"shelf",
+            #"shelf_id"
+        ]
+        read_only_fields = ["id"]

backend/apps/books/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/books/urls.py

@@ -0,0 +1,9 @@
+from rest_framework.routers import DefaultRouter
+
+from apps.books.views import BooksViewSet
+
+urlpatterns = []
+
+router = DefaultRouter()
+router.register("", viewset=BooksViewSet)
+urlpatterns += router.urls

backend/apps/books/views.py

@@ -0,0 +1,19 @@
+from rest_framework import viewsets
+
+from apps.books.models import Book
+from apps.books.serializers import BookSerializer
+from rest_framework import viewsets 
+from rest_framework.permissions import IsAuthenticated
+from rest_framework_simplejwt.authentication import JWTAuthentication
+
+class BooksViewSet(viewsets.ModelViewSet):
+    queryset = Book.objects.prefetch_related("authors")
+    serializer_class = BookSerializer 
+
+    authentication_classes = [JWTAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        return self.queryset.filter(
+            shelf__user_id=self.request.user.pk
+        )

backend/apps/categories/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/categories/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class CategoriesConfig(AppConfig):
+    name = 'categories'

backend/apps/categories/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

backend/apps/categories/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/categories/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

backend/apps/notes/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/notes/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class NotesConfig(AppConfig):
+    name = 'notes'

backend/apps/notes/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

backend/apps/notes/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/notes/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

backend/apps/shelf_items/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/apps/shelf_items/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ShelfItemsConfig(AppConfig):
+    name = 'shelf_items'

backend/apps/shelf_items/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

backend/apps/shelf_items/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/apps/shelf_items/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

backend/apps/shelves/views.py

@@ -14,6 +14,8 @@ class ShelvesViewSet(viewsets.ModelViewSet):
     permission_classes = [IsAuthenticated]
 
     def get_queryset(self):
-        return Shelf.objects.filter(user_id=self.request.user.pk)
-    
+        return self.queryset.filter(
+            user_id=self.request.user.pk
+        )    
+
 

backend/apps/urls.py

@@ -2,8 +2,10 @@ from drf_spectacular.views import SpectacularAPIView, SpectacularSwaggerView
 from django.urls import include, path
 
 urlpatterns = [
-    path("auth", include("apps.authentication.urls")),
-    path("shelves", include("apps.shelves.urls")),
+    path("auth/", include("apps.authentication.urls")),
+    path("shelves/", include("apps.shelves.urls")),
+    path("books/", include("apps.books.urls")),
+    path("authors/", include("apps.authors.urls")),
 
     path('schema/', SpectacularAPIView.as_view(), name='schema'),
     path('swagger/', SpectacularSwaggerView.as_view(url_name='schema'), name='swagger-ui'),

backend/apps/user/apps.py

@@ -3,3 +3,9 @@ from django.apps import AppConfig
 
 class UserConfig(AppConfig):
     name = 'apps.user'
+
+    
+    def ready(self):
+        
+
+        return super().ready()

backend/config/django/base.py

@@ -19,6 +19,8 @@ INSTALLED_APPS = [
     "apps.authentication.apps.AuthenticationConfig",
     "apps.user.apps.UserConfig",
     "apps.shelves.apps.ShelvesConfig",
+    "apps.books.apps.BooksConfig",
+    "apps.authors.apps.AuthorsConfig",
     "django.contrib.admin",
     "django.contrib.auth",
     "django.contrib.contenttypes",

backend/requirements.txt

@@ -4,4 +4,5 @@ djangorestframework==3.16.1
 django-filter==25.2
 djangorestframework-simplejwt==5.5.1
 drf-spectacular==0.29.0
-pillow==12.1.1
+pillow==12.1.1
+celery==5.6.2