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eCommerce/brand/admin.py

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+from django.contrib import admin
+
+# Register your models here.

eCommerce/brand/apps.py

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+from django.apps import AppConfig
+
+
+class BrandConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'brand'

eCommerce/brand/migrations/0001_initial.py

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+# Generated by Django 4.0.6 on 2022-08-01 19:33
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Brand',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=512)),
+                ('description', models.TextField()),
+                ('established_at', models.DateField()),
+                ('city', models.CharField(max_length=512)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=128)),
+                ('description', models.TextField()),
+                ('image_url', models.URLField()),
+                ('price', models.DecimalField(decimal_places=10, max_digits=10)),
+                ('quantity', models.IntegerField()),
+                ('is_active', models.BooleanField()),
+                ('brand', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='brand.brand')),
+            ],
+        ),
+    ]

eCommerce/brand/migrations/0002_alter_product_price.py

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+# Generated by Django 4.0.6 on 2022-08-01 20:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('brand', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='product',
+            name='price',
+            field=models.DecimalField(decimal_places=2, max_digits=10),
+        ),
+    ]

eCommerce/brand/models.py

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+from django.db import models
+
+# Create your models here.
+
+class Brand(models.Model):
+    title = models.CharField(max_length=512)
+    description = models.TextField()
+    established_at = models.DateField()
+    city = models.CharField(max_length=512)
+
+
+class Product(models.Model):
+    brand = models.ForeignKey(Brand, on_delete=models.CASCADE)
+    name = models.CharField(max_length=128)
+    description = models.TextField()
+    image_url = models.URLField()
+    price = models.DecimalField(max_digits=10, decimal_places=2)
+    quantity = models.IntegerField()
+    is_active = models.BooleanField()

eCommerce/brand/serializers.py

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+from rest_framework import serializers
+
+from .models import Product
+
+
+class ProductSerializer(serializers.ModelSerializer):
+
+    class Meta:
+        model = Product
+        fields = '__all__'

eCommerce/brand/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

eCommerce/brand/urls.py

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+from django.urls import path
+
+from . import views
+
+app_name = "brand"
+
+urlpatterns = [
+    path("add/", views.add_brand, name="add_brand"),
+    path("all/", views.list_brands, name="list_brands"),
+    path("update/<brand_id>/", views.update_brand, name="update_brand"),
+    path("delete/<brand_id>/", views.delete_brand, name="delete_brand"),
+
+    path("products/add/", views.add_product, name="add_product"),
+    path("products/all/", views.list_products, name="list_products"),
+    path("products/update/<product_id>/", views.update_product, name="update_product"),
+    path("products/delete/<product_id>/", views.delete_product, name="delete_product"),
+    path("products/get/<product_id>/", views.get_product, name="get_product"),
+
+]

eCommerce/brand/views.py

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+from hashlib import new
+from rest_framework.decorators import api_view
+from rest_framework.response import Response
+from rest_framework.request import Request
+
+from rest_framework import status
+
+from .models import Brand, Product
+from .serializers import ProductSerializer
+
+
+@api_view(["POST"])
+def add_brand(request : Request):
+
+    title = request.data["title"]
+    description = request.data["description"]
+    established_at = request.data["established_at"]
+    city = request.data["city"]
+
+    new_brand = Brand(title=title, description=description, established_at=established_at, city=city)
+    new_brand.save()
+
+    res_data = {
+        "msg" : "Created Brand Successfully"
+    }
+
+    return Response(res_data)
+
+
+@api_view(["GET"])
+def list_brands(request : Request):
+    all_brands=Brand.objects.all()
+    all_brands_list = [{"id" : brand.id, "title" : brand.title, "description": brand.description, "city": brand.city} for brand in all_brands]
+
+    res_data = {
+        "msg" : "A list of All Brands",
+        "books" : all_brands_list
+    }
+    return Response(res_data, status=status.HTTP_200_OK)
+
+
+
+@api_view(['PUT'])
+def update_brand(request : Request, brand_id):
+
+    brand=Brand.objects.get(id=brand_id)
+
+    brand.title = request.data["title"]
+    brand.description = request.data["description"]
+    brand.established_at = request.data["established_at"]
+    brand.city = request.data["city"]
+    brand.save()
+
+    return Response({"msg" : "Your brand is updated !"})
+
+
+
+@api_view(["DELETE"])
+def delete_brand(request : Request, brand_id):
+
+    try:
+        brand = Brand.objects.get(id=brand_id)
+        brand.delete()
+    except Exception as e:
+        return Response({"msg" : "The brand is not Found!"})
+
+    return Response({"msg" : f"delete the following brand {brand.title}"})
+
+
+
+@api_view(['POST'])
+def add_product(request : Request):
+
+    product_serializer = ProductSerializer(data=request.data)
+
+    if product_serializer.is_valid():
+        product_serializer.save()
+    else:
+        return Response({"msg" : "couldn't create a product", "errors" : product_serializer.errors}, status=status.HTTP_403_FORBIDDEN)
+
+    return Response({"msg" : "Product Added Successfully!"}, status=status.HTTP_201_CREATED)
+
+
+
+@api_view(['GET'])
+def list_products(request : Request):
+
+    products = Product.objects.all()
+    products_data = ProductSerializer(instance=products, many=True).data
+
+    return Response({"msg" : "list of all products", "products" : products_data})
+
+
+@api_view(['PUT'])
+def update_product(request : Request, product_id):
+
+    try:
+        product = Product.objects.get(id=product_id)
+    except Exception as e:
+        return Response({"msg" : "This product is not found"}, status=status.HTTP_404_NOT_FOUND)
+
+    product_serializer = ProductSerializer(instance=product, data=request.data)
+
+    if product_serializer.is_valid():
+        product_serializer.save()
+    else:
+        return Response({"msg" : "couldn't update", "errors" : product_serializer.errors})
+
+    return Response({"msg" : "Product updated successfully"})
+
+
+
+@api_view(["DELETE"])
+def delete_product(request : Request, product_id):
+
+    try:
+        product = Product.objects.get(id=product_id)
+        product.delete()
+    except Exception as e:
+        return Response({"msg" : "The product is not Found!"})
+
+    return Response({"msg" : f"delete the following product {product.name}"})
+
+
+
+@api_view(['GET'])
+def get_product(request : Request, product_id):
+
+    try:
+        product = Product.objects.get(id=product_id)
+        product_serializer = ProductSerializer(instance=product, data=request.data)
+        return Response({"msg" : "Product updated successfully", "product": product_serializer})
+    except Exception as e:
+        return Response({"msg" : "This product is not found"}, status=status.HTTP_404_NOT_FOUND)
+
+
+
+

eCommerce/eCommerce/asgi.py

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+"""
+ASGI config for eCommerce project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.0/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'eCommerce.settings')
+
+application = get_asgi_application()