Django开关标志开启按钮

无需使其过于复杂:

  <div class="col-3">
      {% if flag %}
          <a class="btn btn-primary" href="{% url 'home' %}" data-toggle="tooltip" data-placement="top" title="Hide Completed Tasks"><i class="fas fa-eye"></i></a>
      {% else %}
          <a class="btn btn-primary" href="{% url 'hide' %}" data-toggle="tooltip" data-placement="top" title="Hide Completed Tasks"><i class="fas fa-eye-slash"></i></a>
      {% endif %}
  </div>

现在在视图函数中放入一个变量,并将var添加到呈现的字典中:

def home(request):
    tasks = Task.objects
    flag = False
    return render(request, 'home/home.html', {'tasks': Task.objects.all().order_by('-pub_date'), 'flag':flag})

def hide(request):
    tasks = Task.objects
    flag = True
    return render(request, 'home/home.html', {'tasks': Task.objects.all().order_by('-pub_date').filter(completed=False), 'flag':flag})