Html 使用django在tab nav引导中使用for循环标记

我在使用for循环标签时遇到了一个问题，这对于标签来说是很好的，但是标签内容中id的引用本身就是一个问题，因为我无法访问in{{spec}的即时值，现在我如何使用导航标签定制我的url，以显示与专业相关的课程

category_page.html url.py 有几件事-

您没有在任何地方调用

get\u absolute\u url

，因此模板将只显示模型的

\uuuuuuunicode\uuuuu

方法（如果是Python 2）或

\uuuu str\uuuuu

方法（如果是Python 3）的返回值

不要在spec中为spec调用

，使用单独的变量，这样就不会出现名称空间污染和潜在错误

{%对于spec%中的每个_spec}
{{spec}}
{%endfor%}

---

我知道这一点，但这不是我的问题，我的问题是导航丸超链接无法解决其选项卡打开它

<!-- This is tabs with for loop for data in specializations worked well-->
     <div class="row" >
                <div class="list-group col-md-4" role="navigation">
                  {% for specs in spec %}
                        <button type="button" class="list-group-item" data-toggle="tab" href="{{ specs }}">{{ specs }}</button>

                  {% endfor %}
                </div>
<!-- Here is the tab content and it doesn't work well as I need data appears related to the tab itself --> 
                <div class="col-md-8">
                    <div class="tab-content ">
                        {% for specs in spec %}
                    <div id="{{ specs }}" class="tab-pane fade ">
                            <div class="row">
                                {% for instances in courses_spec %}
                                    <div class="col-sm-6 col-md-6">
                                          <div class="caption">
                                            <h3>{{ instances.name }}</h3>
                                          </div>
                                    </div>

                                {% endfor %}


                    </div>
                </div>

def categories_pages(request, category_name, speci_name=None):
    courses = Course_dir.objects.filter(
        availability=True,
        id_CO__id_S__name=category_name
    ).order_by('date')

    courses_spec = Course_dir.objects.filter(
        availability=True,
        id_CO__name=speci_name
    ).order_by('date')

    spec = Specialization.objects.filter(
        id_S__name__contains=category_name
    ).order_by('name')
    context = {
        "courses": courses,
        "spec": spec,
        "courses_spec": courses_spec
    }
    return render(request, 'categories/categories-page.html', context)

url(r'^categories/(?P<category_name>[-\w]+)/$', views.categories_pages, name='category_detail'),
url(r'^categories/(?P<category_name>[-\w]+)/(?P<speci_name>[-\w]+)$', views.categories_pages, name='specialization_detail'),

 class Category(models.Model):
    name = models.CharField(max_length=100)
    description = models.CharField(max_length=300, blank=True)
    slug = models.SlugField(default=None)

def get_absolute_url(self):
    self.slug = slugify(self.name)
    return reverse('category_detail', args=[str(self.slug)])

class Specialization(models.Model):
    id_S = models.ForeignKey(Category, on_delete=models.CASCADE)
    name = models.CharField(max_length=100)
slug = models.SlugField(default=None)

def __str__(self):
    return self.name

def get_absolute_url(self):
    self.slug = slugify(self.name)
    return reverse('spec_detail', args=[str(self.slug)])