クラスベースのビューで複数のURLパラメータを使用して

Question

申し訳ありませんが、これはかなり新しく、私は数ヶ月間プロジェクトに取り組んできました。複数のパラメータを受け入れるURLを作成したいと思いますビューを呼び出す http://www.sample.com/builders//M //

私はこれが私のDetailViewでGET_OBJECTをオーバーライドすることで、正常に実装持っているが、私はこれを達成するためのより良い/より簡単にする方法があるかどうかと思いまして

か：サンプルURLは次のようになりますこれは悪い習慣とみなされる場合。どんな指導も高く評価されます。

urls.py

urlpatterns = [ 
    # url(r'^$', builder_list, name='list'), 
    # url(r'^create/$', builder_create, name='create'), 
    # url(r'^(?P<slug>[\w-]+)/$', builder_detail, name='detail'), 
    # url(r'^(?P<slug>[\w-]+)/edit/$', builder_update, name='update'), 
    # url(r'^(?P<slug>[\w-]+)/delete/$', builder_delete, name='delete'), 

    # url(r'^$', builder_list, name='sub_list'), 
    # url(r'^m/create/$', sub_create, name='sub_create'), 
    url(r'^(?P<builder>[\w-]+)/m/(?P<market>[\w-]+)/$', sub_detail, name='sub_detail'), 
    # url(r'^m/(?P<slug>[\w-]+)/edit/$', sub_update, name='sub_update'), 
    # url(r'^m/(?P<slug>[\w-]+)/delete/$', sub_delete, name='sub_delete'), 
] 

views.py

class BuilderSubDetailView(DetailView): 
    model = BuilderSub 
    template_name = "builders/sub_detail.html" 

    def get_context_data(self, **kwargs): 
     context = super(BuilderSubDetailView, self).get_context_data(**kwargs) 
     context['now'] = timezone.now() 
     print(context) 

     return context 

    def get_object(self, queryset=None): 
     if queryset is None: 
      queryset = self.get_queryset() 

     # Next, try looking up by primary key. 
     builder = self.kwargs['builder'] 
     builder_id = Builder.objects.filter(slug=builder).first().pk 
     market = self.kwargs['market'] 
     market_id = Market.objects.filter(slug=market).first().pk 
     if builder is not None and market is not None: 
      queryset = BuilderSub.objects.filter(parent=builder_id).filter(market=market_id) 

     # If none of those are defined, it's an error. 
     if builder is None or market is None: 
      raise AttributeError("Generic detail view %s must be called with " 
           "Builder and Market" 
           % self.__class__.__name__) 
     try: 
      # Get the single item from the filtered queryset 
      obj = queryset.get() 
     except queryset.model.DoesNotExist: 
      raise Http404("No %(verbose_name)s found matching the query") % \ 
       {'verbose_name': queryset.model._meta.verbose_name} 
     return obj 

そしてmodels.py参照のための - も私はget_absolute_url機能に問題がありますか？

私は私BuilderSubモデルは、全体的なビルダー（会社）との関係を処理するための適切な方法ですよ、100％わからない

class Builder(models.Model): 
    added_by = models.ForeignKey(settings.AUTH_USER_MODEL, default=1) 
    company_name = models.CharField(max_length=80, help_text="Full Company Name", unique=True) 
    short_name = models.CharField(help_text="Short Company Name", max_length=30) 
    slug = models.SlugField(unique=True) 
    website = models.CharField(max_length=80, help_text="Format: www.[website].com") 
    logo = models.ImageField(blank=True, null=True) 
    timestamp = models.DateTimeField(auto_now_add=True) 
    info = RedactorField(verbose_name=u'Company Info') 

    def show_website_url(self): 
     return format_html("<a href='{url}'>{url}</a>", url=self.website) 

    def __str__(self): 
     return self.short_name 


class BuilderSub(models.Model): 
    parent = models.ForeignKey(Builder) 
    market = models.ForeignKey(Market, null=True, blank=True) 
    details = RedactorField(verbose_name=u'Details', blank=True, null=True) 
    main_contact = models.ForeignKey(Person, blank=True, null=True) 

    def __str__(self): 
     return "{}: {} - {}".format(self.pk, self.market.name, self.parent.short_name) 

    def get_absolute_url(self): 
     return reverse('builders:sub_detail', kwargs={'market': self.market.slug, 'builder': self.parent.slug}) 


def pre_save_builder_reciever(sender, instance, *args, **kwargs): 
    instance.slug = slugify(instance.short_name) 

pre_save.connect(pre_save_builder_reciever, sender=Builder) 

と市場彼らがそうそこにも理解されるであろう任意のガイダンスを提供しています。

Answer 1

はい、実際にこれを行うより倫理的な方法があります。 DetailViewは、1つのオブジェクトのみを処理するためのものです。リストビューは、しかし、仕事を完了です！

ビルダーと市場を都市とカテゴリに置き換えました。

私は初心者です。私はあなたの質問に答えています:)

views.py

class EntryListView(generic.ListView): 

template_name = 'myapp/category.html' 
context_object_name = 'entry' 
def get_queryset(self): 
    city_id = self.kwargs['city'] 
    category_id = self.kwargs['category'] 
    entry = Entry.objects.all().filter(city=city_id).filter(category=category_id) 
    return entry 

urls.py

url(r'^(?P<city>[0-9]+)/(?P<category>[0-9]+)/$', views.EntryListView.as_view(), name='entry'), 

category.html

{% extends 'myapp/base.html' %} 

{% block body %} 

<table> 
{% for new in entry %} 
    <tr> 
     <td> 
      <img src = "{{new.image_url}}"> 
     <br> 
      <b>Name :</b> {{new.name}}<br> 
      {% if new.phone %} 
      <B>Phone No. :</B> {{new.phone}}<br> 
      {% endif %} 
      <b>Address :</b> {{new.address}}<br> 
     </td> 
    </tr> 
{% endfor %} 

{% endblock %} 

models.py

class Entry(models.Model): 
    city = models.ForeignKey(City, on_delete=models.CASCADE) 
    category = models.ForeignKey(Category, on_delete=models.CASCADE) 
    name = models.CharField(max_length=250) 
    phone = models.IntegerField(null=True) 
    address = models.CharField(max_length=250) 
    image_url = models.CharField(max_length=500) 
    def __str__(self): 
     return self.name 

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