在Django中我怎麼能在塞標題添加ID

Question

我怎樣才能添加ID段塞，這樣它會出現這樣的

「這 - 是 - 一 - 交易-1」

其中「這是一筆交易」是標題，「1」是id號。在它被顯示爲"this-is-a-deal-None"

models.py ... 蛞蝓= models.SlugField（）

def save(self, *args, **kwargs): 
     if not self.id: 
      # Newly created object, so set slug 
      self.slug = '%s-%s' %(
          slugify(self.deal_title), 
          str(self.id)) 

views.py

def deal_page(request, deal_title_slug): 

    # Create a context dictionary which we can pass to the template rendering engine. 
    context_dict = {} 

    try: 
     deal = SubmitDeal.objects.get(slug=deal_title_slug) 
     context_dict['deal_title'] = deal.deal_title 

     context_dict['deal'] = deal 
    except SubmitDeal.DoesNotExist: 
     # We get here if we didn't find the specified category. 
     # Don't do anything - the template displays the "no category" message for us. 
     pass 

    return render(request, 'deal_page.html', context_dict) 

網址當前代碼的時刻。 py

url(r'^(?P<deal_title_slug>[\w\-]+)/$', 'submit_deals.views.deal_page', name='deal_page'), 

admin.py

class SubmitModelAdmin(admin.ModelAdmin): 
    prepopulated_fields = {'slug':('deal_title',)} #prepopulate slug with deal_title 
    class meta: 
     model = SubmitDeal 

admin.site.register(SubmitDeal, SubmitModelAdmin) 

Answer 1

你不應該改變分貝中的slu g。分開slug和id的網址：

url(r'^(?P<slug>[\w\-]+)-(?P<pk>\d+)/$', 'submit_deals.views.deal_page', 
             name='deal_page'), 

的再使用pk獲取對象，忽略slug：

def deal_page(request, slug, pk): 
    try: 
     deal = SubmitDeal.objects.get(pk=pk) 
     context_dict = {'deal_title': deal.deal_title, 'deal': deal} 
    except SubmitDeal.DoesNotExist: 
     context_dict = {} 
    return render(request, 'deal_page.html', context_dict)