Add get api for book and author

.gitignore

@@ -0,0 +1,2 @@
+*.pyc
+.env

ecommerce_store/admin.py

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

ecommerce_store/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class EcommerceStoreConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'ecommerce_store'

ecommerce_store/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# Generated by Django 5.1.1 on 2024-10-24 16:12
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=30)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+                ('price', models.DecimalField(decimal_places=2, max_digits=5)),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ecommerce_store.category')),
+            ],
+        ),
+    ]

ecommerce_store/models.py

@@ -0,0 +1,10 @@
+from django.db import models
+
+# Create your models here.
+class Category(models.Model):
+  name = models.CharField(max_length=30)
+
+class Product(models.Model):
+  name = models.CharField(max_length=100)
+  category = models.ForeignKey(Category, on_delete=models.CASCADE)
+  price = models.DecimalField(max_digits=5, decimal_places=2)

ecommerce_store/serializer.py

@@ -0,0 +1,12 @@
+from rest_framework import serializers
+from .models import Category, Product
+
+class CategorySerializer(serializers.ModelSerializer):
+  class Meta:
+    model = Category
+    fields = '__all__'
+
+class ProductSerializer(serializers.ModelSerializer):
+  class Meta:
+    model = Product
+    fields = '__all__'    

ecommerce_store/tests.py

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

ecommerce_store/urls.py

@@ -0,0 +1,12 @@
+from django.urls import path
+
+from ecommerce_store import views
+
+urlpatterns=[
+  path('createcategory', views.create_category),
+  path('getcategories', views.get_categories),
+  path('createproduct', views.create_product),
+  path('getproducts', views.get_products),
+  path('getproduct/<int:product_id>', views.get_product),
+  path('delete_product/<int:product_id>', views.delete_product)
+]

ecommerce_store/views.py

@@ -0,0 +1,58 @@
+from django.shortcuts import render
+
+# Create your views here.
+from rest_framework import status
+from rest_framework.decorators import api_view
+from rest_framework.response import Response
+
+from ecommerce_store.serializer import CategorySerializer, ProductSerializer
+
+from .models import Category, Product
+
+@api_view(['POST'])
+def create_category(request):
+  category = CategorySerializer(data = request.data)
+  if category.is_valid():
+    category.save()
+    return Response(category.data, status=status.HTTP_201_CREATED)
+
+  return Response(category.errors, status=status.HTTP_422_UNPROCESSABLE_ENTITY)
+
+@api_view(['GET'])
+def get_categories(request):
+  categories = Category.objects.all()
+  category_serializer  = CategorySerializer(categories,many=True)
+  return Response(category_serializer.data, status=status.HTTP_200_OK)
+
+@api_view(['POST'])
+def create_product(request):
+  product = ProductSerializer(data=request.data)
+  if product.is_valid():
+    product.save()
+    return Response(product.data, status=status.HTTP_201_CREATED)
+  return Response(product.errors,status=status.HTTP_400_BAD_REQUEST)
+
+@api_view(['GET'])
+def get_products(request):
+  products = Product.objects.all()
+  product_serializer = ProductSerializer(products, many=True)
+  return Response(product_serializer.data, status=status.HTTP_200_OK)
+
+@api_view(['GET'])
+def get_product(request,product_id):
+  try:
+    product = Product.objects.get(pk=product_id)  
+  except Product.DoesNotExist:
+    product = None
+  product_serializer = ProductSerializer(product)  
+  return Response(product_serializer.data, status= status.HTTP_200_OK)
+
+@api_view(['DELETE'])
+def delete_product(request,product_id):
+  try:
+    product = Product.objects.get(pk=product_id)
+    product.delete()
+  except Product.DoesNotExist:
+    return Response(status=status.HTTP_404_NOT_FOUND)
+  return Response({"message": "delete successfully"}, status= status.HTTP_200_OK)
+

helloworld/settings.py

@@ -11,6 +11,7 @@
 """
 
 from pathlib import Path
+import environ
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -38,7 +39,9 @@
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'tryHello',
-    'library'
+    'library',
+    'ecommerce_store',
+    'django_extensions'
 ]
 
 MIDDLEWARE = [
@@ -71,14 +74,25 @@
 
 WSGI_APPLICATION = 'helloworld.wsgi.application'
 
-
+env = environ.Env()
+environ.Env.read_env()
 # Database
 # https://docs.djangoproject.com/en/4.2/ref/settings/#databases
 
+# DATABASES = {
+#     'default': {
+#         'ENGINE': 'django.db.backends.sqlite3',
+#         'NAME': BASE_DIR / 'db.sqlite3',
+#     }
+# }
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'ENGINE': 'django.db.backends.mysql',
+        'NAME': env('DB_NAME'),
+        'HOST': env('DB_HOST'),
+        'USER': env('DB_USER'),
+        'PASSWORD': env('DB_PASSWORD'),
+        'PORT': env('DB_PORT')
     }
 }
 

helloworld/urls.py

@@ -21,4 +21,5 @@
     path('admin/', admin.site.urls),
     path('', include('tryHello.urls')),
     path('api/', include('library.urls')),
+    path('api/v2/', include('ecommerce_store.urls'))
 ]

library/migrations/0003_book_test_column.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.1 on 2024-10-11 15:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library', '0002_book_publish_date'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='book',
+            name='test_column',
+            field=models.CharField(default=None, max_length=100),
+            preserve_default=False,
+        ),
+    ]

library/migrations/0004_alter_book_test_column.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.1.1 on 2024-10-11 15:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library', '0003_book_test_column'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='test_column',
+            field=models.CharField(max_length=100, null=True),
+        ),
+    ]

library/migrations/0005_remove_book_test_column.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.1.1 on 2024-10-24 15:31
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library', '0004_alter_book_test_column'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='book',
+            name='test_column',
+        ),
+    ]

library/urls.py

@@ -5,4 +5,6 @@
 urlpatterns = [
     path('createbook/', views.create_book, name='createbook'),
     path('createAuthor/', views.create_author, name='createauthor'),
+    path('getBook/<int:pk>', views.get_book_by_id, name = 'getbook'),
+    path('getAuthor/<int:pk>', views.get_author_by_id, name = 'getbook')
 ]

library/views.py

@@ -5,7 +5,7 @@
 
 from library.serializer import BookSerializer, AuthorSerializer
 
-
+from .models import Book, Author
 # Create your views here.
 
 @api_view(['POST'])
@@ -30,5 +30,21 @@ def create_author(request):
 
     return Response(author_serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
-# TODO: GET BOOK BY ID and return json response..
-# TODO: GET AUTHOR BY ID and return json response..
+@api_view(['GET'])
+def get_book_by_id(request,pk):
+    try:
+        book = Book.objects.get(pk=pk)
+    except Book.DoesNotExist:
+        return Response({"detail": "Not found."},status=status.HTTP_404_NOT_FOUND)
+
+    book_serializer = BookSerializer(book)
+    return Response(book_serializer.data, status=status.HTTP_200_OK)    
+
+@api_view(['GET'])
+def get_author_by_id(request, pk):
+    try:
+        author = Author.objects.get(pk=pk)
+    except Author.DoesNotExist:
+        return Response({"detail": "Not found."}, status=status.HTTP_404_NOT_FOUND)
+    author_serilizer = AuthorSerializer(author)
+    return Response(author_serilizer.data, status=status.HTTP_200_OK)