templates/base.html

<!DOCTYPE html>
<html>

<head>
    <meta charset='utf-8'>
    <meta name='viewport' content='width=device-width, initial-scale=1'>
    <title>Eventify</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <!-- jQuery required for Summernote -->
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>

<body>
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
        <div class="container-fluid">
            <a class="navbar-brand" href="{% url 'accounts:dashboard' %}">Eventify</a>
            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navmenu">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse" id="navmenu">
                <ul class="navbar-nav me-auto mb-2 mb-lg-0">

                    <!-- Accessible by Admin, Manager, Staff -->
                    <li class="nav-item">
                        <a class="nav-link" href="{% url 'accounts:dashboard' %}">Dashboard</a>
                    </li>

                    {% if user.role == "admin" or user.role == "manager" %}
                    <!-- Admin + Manager -->
                    <li class="nav-item">
                        <a class="nav-link" href="{% url 'master_data:event_type_list' %}">Categories</a>
                    </li>
                    {% endif %}

                    {% if user.role in "admin manager staff" %}
                    <!-- Admin + Manager + Staff -->
                    <li class="nav-item">
                        <a class="nav-link" href="{% url 'events:event_list' %}">Events</a>
                    </li>
                    {% endif %}

                    {% if user.role == "admin" %}
                    <!-- Admin only -->
                    <li class="nav-item">
                        <a class="nav-link" href="{% url 'accounts:user_list' %}">Users</a>
                    </li>
                    {% endif %}

                </ul>
                <ul class="navbar-nav">
                    {% if user.is_authenticated %}
                    <li class="nav-item"><a class="nav-link" href="#">
                            {% if user.first_name and user.last_name %}
                            {{ user.first_name }} {{ user.last_name }}
                            {% elif user.username %}
                            {{ user.username }}
                            {% else %}
                            {{ user.email }}
                            {% endif %}
                        </a></li>
                    <li class="nav-item"><a class="nav-link text-danger" href="{% url 'accounts:logout' %}">Logout</a>
                    </li>
                    {% else %}
                    <li class="nav-item"><a class="nav-link" href="{% url 'accounts:login' %}">Login</a></li>
                    {% endif %}
                </ul>
            </div>
        </div>
    </nav>
    <div class="container mt-4">
        {% if messages %}
        {% for message in messages %}
        <div class="alert alert-{{ message.tags }}">{{ message }}</div>
        {% endfor %}
        {% endif %}
        {% block content %}{% endblock %}
    </div>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
</body>

</html>