Question

I am using this django-plugin here: https://github.com/chronossc/django-breadcrumbs

But I can’t seem to be able to check in the templates if there is actually an array of breadcrumbs or not… I have tried:

{%if request.breadcrumbs%} {% if request.breadcrumbs|length > 0%} 

and so on… but nothing truly tells me if there are some or not.

I want this bar to appear if I passed in breadcrumbs, and not appear in the case that I didn’t pass some breadcrumbs in my view:

{% if request.breadcrumbs|length > 0 %}
<div class="navbar navbar-fixed-top" style="top:38px;z-index:1029;" id="breadcrumb-sticky-header">
    <div class="container">
        <div class="container-fluid">
            <div class="row-fluid">
                <ul id="breadcrumb-sticky-header-inner" class="breadcrumb">
                    {% for breadcrumb in request.breadcrumbs %}
                    {% if not forloop.last %}
                    <li><a href="{{ breadcrumb.url }}">{{ breadcrumb.name }}</a> <span class="divider">/</span></li> 
                    {% else %}
                    <li class="active">{{ breadcrumb.name }}</li> 
                    {% endif %}
                    {% endfor %}
                </ul>
            </div>
        </div>
    </div>
</div>
{% endif %}

Here is the code in my view:

@login_required
def view(request, t_id):
    try:
        tshoot = Troubleshoot.objects.select_related('category', 'equipment', 'equipment__model').get(pk=t_id)
        request.breadcrumbs([
            (("%s: %s" % (tshoot.equipment.model.name, tshoot.equipment.serial)),
                '/equipment/view/%s/' % (tshoot.equipment.id)),
            (("%s" % (tshoot.category.name)),
                '/troubleshoot/categories/view/%s/' % (tshoot.category.id)),
            ((tshoot.title), '')
        ])

Answer 1

Based on the code in the django-breadcrumbs project (line 191 in breadcrumbs.py: https://github.com/chronossc/django-breadcrumbs/blob/master/breadcrumbs/breadcrumbs.py#L191), It looks like they’ve implemented a .all() method.

You should be able to use the |length template filter on the results of the .all() method to get the result you want, like so:

{% if request.breadcrumbs and request.breadcrumbs.all|length > 0 %}

I have not tested this; this is what my quick code inspection revealed.