/api/cart

alkator/urls.py

@@ -23,7 +23,7 @@ from alkatorapi.views import (
     payment_result, payment_state,
     invoice, upload_files,
     login_status, change_racer,
-    products, cart_add
+    products, cart_add, cart
 )
 
 urlpatterns = [
@@ -43,4 +43,5 @@ urlpatterns = [
     path('api/upload_files', upload_files),
     path('api/products', products),
     path('api/cart/add', cart_add),
+    path('api/cart', cart),
 ]

alkatorapi/views.py

@@ -355,18 +355,40 @@ def cart_add(request):
     except AttributeError:
         cart = Cart(user=user)
         cart.save()
+    product = Product.objects.get(id=_id)
     try:
         cart_product = CartProduct(
-            product=Product.objects.get(id=_id),
+            product=product,
             cart=cart,
             quantity=1,
         )
         cart_product.save()
     except IntegrityError as e:
-            return HttpResponse('{"status":"failed", "reason":"Předmět už v košíku je!"}', status=400, content_type='application/json')
+        cart_product = CartProduct.objects.get(cart=cart, product=product)
+        cart_product.quantity += 1
+        cart_product.save()
     return HttpResponse('{"status":"success", "reason":"Úspěšně přidáno do košíku."}', status=200)
 
 
+def cart(request):
+    user = request.user
+    if not user.is_authenticated:
+        return HttpResponse("[]")
+    cart = []
+    try:
+        for product in CartProduct.objects.filter(user.cart):
+            cart.append({
+                "id": product.product.id,
+                "name": product.product.name,
+                "quantity": product.quantity,
+                "price": product.price,
+                "img": product.product.img.url,
+            })
+    except AttributeError:
+        return HttpResponse("[]")
+    return HttpResponse(json.dumps(cart))
+
+
 def results(request):
     results = []
     n = 1

frontend/src/scripts/index.js

@@ -42,6 +42,9 @@ class Main extends Component {
         fetch(addr_prefix + "/api/products").then(resp => resp.json()).then(json => {
             this.setState({products: json})
         })
+        fetch(addr_prefix + "/api/cart").then(resp => resp.json()).then(json => {
+            this.setState({cart: json})
+        })
         fetch(addr_prefix + "/api/login_status").then(resp => resp.json()).then(json => {
             this.setState({login_status: json})
         })
@@ -79,19 +82,33 @@ class Main extends Component {
             showRacerModalWindow: true,
         })
     }
-    addToCart = (id) =>{
-        fetch(addr_prefix + "/api/cart/add?id=" + id).then(resp => resp.json()).then(json=>{
+    addToCart = (product) =>{
+        fetch(addr_prefix + "/api/cart/add?id=" + product.id).then(resp => resp.json()).then(json=>{
             if(json.status == "failed"){
                 this.setState({
                     status_text: json.reason,
                     status: "failed",
                 })
             }else{
+                if(this.state.cart.filter(iter_product => {
+                    if(iter_product.id == product.id){
+                        iter_product.quantity += 1
+                        return true
+                    }else{
+                        return false
+                    }
+                }).length == 0){
                     this.setState({
                         status_text: json.reason,
                         status: "success",
-                    cart: [...this.state.cart, id],
-                });
+                        cart: [...this.state.cart, {...product, quantity: 1}],
+                    })
+                }else {
+                    this.setState({
+                        status_text: json.reason,
+                        status: "success",
+                    })
+                }
             }
         })
     }
@@ -122,6 +139,9 @@ class Main extends Component {
                 fetch(addr_prefix + "/api/login_status").then(resp => resp.json()).then(json => {
                     this.setState({login_status: json})
                 })
+                fetch(addr_prefix + "/api/cart").then(resp => resp.json()).then(json => {
+                    this.setState({cart: json})
+                })
                 this.setState({
                     showRacerModalWindow: false,
                     status_text: data.success,
@@ -249,7 +269,7 @@ class Main extends Component {
                     <div class="card-body">
                         <h5 class="card-title">{product.name}</h5>
                         <p class="card-text">{product.description}</p>
-                        {product.price} Kč <a href="#" onClick={(e) => {e.preventDefault();this.addToCart(product.id)}} class="btn btn-primary">Přidat do košíku</a>
+                        {product.price} Kč <a href="#" onClick={(e) => {e.preventDefault();this.addToCart(product)}} class="btn btn-primary">Přidat do košíku</a>
                     </div>
                 </div>)}
         </div>}