Django error with get_absolute_url

我正在从事django电子商务项目。添加任何其他网址到我的html页面single.html（显示由特定的面包师或制造商产品）给错误HTTP404。所以在这个single.html页面上显示产品。我已添加到购物车按钮。当我不提add_to_cart的按钮标签的链接它显示的页面，当我提到它给HTTP404错误Django error with get_absolute_url

views.py用于显示制造商（在我的情况贝克）

def BakerDetail(request, slug): 
try: 
    baker = Baker.objects.get(slug=slug) 
    products = Product.objects.filter(baker=baker) 
    context = { 
    'baker': baker, 
    'products': products 
    } 
    template = 'bakers/single.html' 
    return render(request, template, context) 
except: 
    raise Http404

单对于add_to_cart

def Add_To_Cart(request, slug): 
request.session.set_expiry(120000) 
try: 
    the_id = request.session['cart_id'] 
except: 
    new_cart = Cart() 
    new_cart.save() 
    request.session['cart_id'] = new_cart.id 
    the_id = new_cart.id 

cart = Cart.objects.get(id=the_id) 

try: 
    product = Product.objects.get(slug=slug) 
except Product.DoesNotExist: 
    pass 
except: 
    pass

的.html

<table class='table'> 
<thead> 
<th></th> 
<th>Products</th> 
</thead> 
<tbody> 
{% for items in products %} 
<tr> 
<td></td> 
<td> 
<a href="{{ items }}"> 
{{ items }}</a> 
{{ items.price }} 
<button class="btn btn-primary" href="{% url 'add_to_cart' %}">Add To Cart</button> 
</td> 
<td></td> 
</tr> 
{% endfor %} 
</tbody> 
</table>

视图urls.py

url(r'^cart/(?P<slug>[\w-]+)/$', views.Add_To_Cart, name='add_to_cart'),

来源

2015-08-08 Nikhil Shirsath

这并没有回答你的问题，但这些都在扰乱我！更严重的是，这些小细节加起来会让你的工作更难。

def BakerDetail(...) =>def baker_detail(...)

def Add_To_Cart(...) =>def add_to_car(...)

try: baker = Baker.objects.get(slug=slug) ... except ... =>baker = get_object_or_404(Baker, slug=slug) 见：https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#get-object-or-404

{% for items in products %} =>{% for item in products %}

只是要清楚你的看法可能看起来像这样（行为是一样的）：

def baker_detail(request, slug): 
    baker = get_object_or_404(Baker, slug=slug) 
    products = Product.objects.filter(baker=baker) 
    return render(request, 'bakers/single.html', { 
     'baker': baker, 
     'products': products 
    })

来源

2015-08-08 22:42:57

谢谢@Francois。有效。我会按照你所说的做出改变。 –

您需要将slug传递给url标记，以告知它要添加哪个元素。

{% url 'add_to_cart' slug=items.slug %}

（注意，如果你调用变量“item”而不是“items”）会更清楚。

来源

2015-08-08 21:36:28

Django error with get_absolute_url

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