django-shopping-cart 0.1

Quick start

1. Add “cart” to your INSTALLED_APPS setting like this:

   INSTALLED_APPS = [
       ...
       'cart',
   ]
   
   Add below line to settings context_processor::
       'cart.context_processor.cart_total_amount'
   
   CART_SESSION_ID = 'cart'

2. You can use the urls in following way:

   from django.urls import path
   from . import views
   
   urlpatterns = [
       path('cart/add/<int:id>/', views.cart_add, name='cart_add'),
       path('cart/item_clear/<int:id>/', views.item_clear, name='item_clear'),
       path('cart/item_increment/<int:id>/',
            views.item_increment, name='item_increment'),
       path('cart/item_decrement/<int:id>/',
            views.item_decrement, name='item_decrement'),
       path('cart/cart_clear/', views.cart_clear, name='cart_clear'),
       path('cart/cart-detail/',views.cart_detail,name='cart_detail'),
   ]

5. You should have a Product model & Below field is mandatory

   name = models.CharField(max_length=255) image = models.ImageField(upload_to=’products/’) price = models.FloatField()

4. Then views.py should like like this:

   from django.shortcuts import render, redirect
   from store.models import Product
   from django.contrib.auth.decorators import login_required
   from cart.cart import Cart
   
   @login_required(login_url="/users/login")
   def cart_add(request, id):
       cart = Cart(request)
       product = Product.objects.get(id=id)
       cart.add(product=product)
       return redirect("home")
   
   
   @login_required(login_url="/users/login")
   def item_clear(request, id):
       cart = Cart(request)
       product = Product.objects.get(id=id)
       cart.remove(product)
       return redirect("cart_detail")
   
   
   @login_required(login_url="/users/login")
   def item_increment(request, id):
       cart = Cart(request)
       product = Product.objects.get(id=id)
       cart.add(product=product)
       return redirect("cart_detail")
   
   
   @login_required(login_url="/users/login")
   def item_decrement(request, id):
       cart = Cart(request)
       product = Product.objects.get(id=id)
       cart.decrement(product=product)
       return redirect("cart_detail")
   
   
   @login_required(login_url="/users/login")
   def cart_clear(request):
       cart = Cart(request)
       cart.clear()
       return redirect("cart_detail")
   
   
   @login_required(login_url="/users/login")
   def cart_detail(request):
       return render(request, 'cart/cart_detail.html')

5. In the template you can use the url in folowing way:

   <a href="{% url 'cart_add' product.id %}">Add To Cart</a>
   <a href="{% url 'cart_clear' %}">Clear Cart</a>
   <a href="{% url 'item_increment' value.product_id %}">Increament</a>
   <a href="{% url 'item_decrement' value.product_id %}">Decrement</a>

6. To view the cart detail page use the below code

   {% load cart_tag %}

   Total Length :: {{request.session.cart|length}}

   Cart Detail:

   {% for key,value in request.session.cart.items %}

   {{value.name}} {{value.price}} {{value.quantity}} {{value.image}} Total {{ value.price|multiply:value.quantity }}

   {% endfor %}