network_inventory/inventory/templates/inventory/index.html

{% extends "inventory/base.html" %}
{% block content %}
        {% if device_list or computer_list %}
        <ul>
            {% for device in device_list %}
                <li><a href="{% url 'device' device.id %}">{{ device.name }}</a></li>
            {% endfor %}
            {% for computer in computer_list %}
                <li><a href="{% url 'computer' computer.id %}">{{ computer.name }}</a></li>
            {% endfor %}
        </ul>
        {% else %}
            <p>No devices are available.</p>
        {% endif %}
{% endblock %}