site_tps/templates/nav_bar.html

{% load categories %}
{% load_categories %}
<nav class="navbar navbar-expand-lg navbar-light bg-light">
    <a class="navbar-brand" href="{% url "home"%}">Il était une fois à l'est</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarText">
    <ul class="navbar-nav mr-auto">
        {% for c in categories %}
        <li class="nav-item
        {% if category.pk == c.pk %}active{%endif%}">
        <a class="nav-link" href="{% url 'content:category-list' c.pk %}">{{c.name}}
        </a></li>
        {% endfor %}

        <li class="nav-item {% if vote %}active{% endif %}"><a class="nav-link" href="{% url 'vote:home' %}">Vote</a></li>
        <li class="nav-item {% if settings %}active{% endif %}"><a class="nav-link" href="{% url 'settings:index' %}">Administration</a></li>
</nav>