Added Ecommerce Project

Author: Fathi7ma

Ecommerce_Project/__init__.py

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

Ecommerce_Project/cart/__init__.py

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

Ecommerce_Project/cart/admin.py

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+# Generated by Django 4.1.5 on 2023-07-11 06:24
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('shop', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Cart',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('cart_id', models.CharField(blank=True, max_length=250)),
+                ('date_added', models.DateField(auto_now_add=True)),
+            ],
+            options={
+                'db_table': 'Cart',
+                'ordering': ['date_added'],
+            },
+        ),
+        migrations.CreateModel(
+            name='CartItem',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.IntegerField()),
+                ('active', models.BooleanField(default=True)),
+                ('cart', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='cart.cart')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='shop.product')),
+            ],
+            options={
+                'db_table': 'CartItem',
+            },
+        ),
+    ]

Ecommerce_Project/cart/apps.py

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+from django.db import models
+from shop.models import Product
+# Create your models here.
+class Cart(models.Model):
+    cart_id=models.CharField(max_length=250,blank=True)
+    date_added=models.DateField(auto_now_add=True)
+
+    class Meta:
+        db_table='Cart'
+        ordering=['date_added']
+    def __str__(self):
+        return  '{}'.format(self.cart_id)
+
+class CartItem(models.Model):
+    product=models.ForeignKey(Product,on_delete=models.CASCADE)
+    cart=models.ForeignKey(Cart,on_delete=models.CASCADE)
+    quantity=models.IntegerField()
+    active=models.BooleanField(default=True)
+
+    class Meta:
+        db_table='CartItem'
+    def sub_total(self):
+        return self.product.price*self.quantity
+    def __str__(self):
+        return '{}'.format(self.product)
+
+
+

Ecommerce_Project/cart/migrations/0001_initial.py

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

Ecommerce_Project/cart/migrations/__init__.py

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+from django.urls import path
+from . import views
+
+app_name='cart'
+
+urlpatterns=[
+    path('add/<int:product_id>/',views.add_cart,name='add_cart'),
+    path('',views.cart_detail,name='cart_detail'),
+    ]

Ecommerce_Project/cart/models.py

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+
+from django.shortcuts import render, redirect
+from shop.models import Product
+from .models import Cart,CartItem
+from django.core.exceptions import ObjectDoesNotExist
+
+def _cart_id(request):
+    cart=request.session.session_key
+    if not cart:
+        cart=request.session.create()
+    return cart
+
+def add_cart(request,product_id):
+    product=Product.objects.get(id=product_id)
+    try:
+        cart=Cart.objects.get(cart_id=_cart_id(request))
+    except Cart.DoesNotExist:
+        cart=Cart.objects.create(
+            cart_id=_cart_id(request)
+        )
+        cart.save(),
+    try:
+        cart_item=CartItem.objects.get(product=product,cart=cart)
+        cart_item.quantity +=1
+        cart_item.save()
+    except CartItem.DoesNotExist:
+        cart_item=CartItem.objects.create(
+            product=product,
+            quantity=1,
+            cart=cart
+        )
+        cart_item.save()
+    return redirect('cart:cart_detail')
+def cart_detail(request,total=0,counter=0,cart_items=None):
+    try:
+        cart=Cart.objects.get(cart_id=_cart_id(request))
+        cart_items=CartItem.objects.filter(cart=cart,active=True)
+        for cart_item in cart_items:
+            total+=(cart_item.product.price * cart_item.quantity)
+            counter +=cart_item.quantity
+    except ObjectDoesNotExist:
+        pass
+    return render(request,'cart.html',dict(cart_items=cart_items,total=total,counter=counter))
+
+
+