webvirtcloud/instances/templates/add_instance_owner_block.html

{% load i18n %}
{% if request.user.is_superuser %}
    <a href="#addInstanceOwner" type="button" class="btn btn-success float-right" data-toggle="modal">
        <span class="fa fa-plus" aria-hidden="true"></span>
    </a>

    <!-- Modal pool -->
    <div class="modal fade" id="addInstanceOwner" tabindex="-1" role="dialog" aria-labelledby="addInstanceOwnerLabel" aria-hidden="true">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">{% trans "Add Instance Owner" %}</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button> 
                </div>
                <div class="modal-body">
                    <form id="add-owner-form" method="post" action="{% url 'instances:add_owner' instance.id %}" role="form" aria-label="Add instance owner form">{% csrf_token %}
                        <div class="form-group row">
                            <label class="col-sm-4 col-form-label">{% trans "User" %}</label>
                            <div class="col-sm-6">
                                <select class="custom-select" name="user_id">
                                    {% for user in users %}
                                        <option value="{{ user.id }}">{{ user.username }}</option>
                                    {% endfor %}
                                </select>
                            </div>
                        </div>
                    </form>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">{% trans "Close" %}</button>
                    <button type="submit" class="btn btn-primary" form="add-owner-form">{% trans "Add" %}</button>
                </div>
            </div> <!-- /.modal-content -->
        </div> <!-- /.modal-dialog -->
    </div> <!-- /.modal -->
{% endif %}