cart maybe?

alkatorapi/models.py

@@ -76,7 +76,7 @@ class Product(models.Model):
 
 
 class Cart(models.Model):
-    user = models.ForeignKey(DjangoUser, on_delete=models.RESTRICT)
+    user = models.ForeignKey(DjangoUser, on_delete=models.RESTRICT, related_name='cart')
     items = models.ManyToManyField(Product, through='CartProduct')
 
 

alkatorapi/views.py

@@ -19,7 +19,11 @@ import PIL.Image
 import random
 from collections import OrderedDict
 
-from .models import User, ALKATOR_CHOICES_DICT, ALKATOR_CLASSES, Profile, Racer, Invoice, Product, InvoiceProduct
+from .models import (
+    User, ALKATOR_CHOICES_DICT, ALKATOR_CLASSES,
+    Profile, Racer, Invoice, Product, InvoiceProduct,
+    Cart, CartProduct
+)
 from alkator.settings import COMGATE_MERCHANT, COMGATE_SECRET, COMGATE_TEST
 
 
@@ -342,6 +346,20 @@ def products(request):
     ]), content_type='application/json')
 
 
+def cart_add(request):
+    _id = request.GET['id']
+    user = request.user
+    if not user.cart:
+        user.cart = Cart(user=user)
+        user.cart.save()
+    cart_product = CartProduct(
+        product=Product.objects.get(id=_id),
+        cart=user.cart,
+        quantity=1,
+    )
+    cart_product.save()
+
+
 def results(request):
     results = []
     n = 1

frontend/src/scripts/index.js

@@ -80,10 +80,21 @@ class Main extends Component {
         })
     }
     addToCart = (id) =>{
+        fetch(addr_prefix + "/api/cart/add?id=" + id).then(resp => resp.json()).then(json=>{
+            if(json.reason){
                 this.setState({
-            cart: [...this.state.cart, id]
+                    status_text: data.reason,
+                    status: "failed",
+                })
+            }else{
+                this.setState({
+                    status_text: data.success,
+                    status: "success",
+                    cart: [...this.state.cart, id],
                 });
             }
+        })
+    }
     onSubmit(event){
         event.preventDefault();
         let form = document.getElementById("form");