I am trying to implement a drag and drop sortable list using SortableJS and htmx. I have it working once, but after dragging and dropping the first element (and the partial being re rendered) I can no longer use the drag and drop functionality. When a partial isn't rerendered the drag and drop functionality works as expected. I have tried using htmx.on("htmx:load",... as well as putting the script in the partial.

I've used diff to check the differences between the html before and after the partial is rendered and as far as I can tell the only difference outside the reordered list is the csrf token.

Any help would be appreciated!

From views.py:

def sort(request):
    event_pks_order = request.POST.getlist('event_order')
    events=[]
    for idx,event_pk in enumerate(event_pks_order,start=1):
        event = Event.objects.get(pk=event_pk)
        event.event_number = idx
        event.save()
        events.append(event)

    return render(request,'timing/partials/eventlist.html',{'events':events})

From eventlist.html:

<form class="sortable list-group" hx-trigger="end" hx-post="{% url 'sort' %}" hx-target="#event-list">
  {% csrf_token %}
  <div class="htmx-indicator">Updating...</div>
  {% for event in events %}
  <div>
    <input type="hidden" name="event_order" value="{{event.pk}}"/>
    <li class="list-group-item">{{event.event_number}} {{event.event_name}}
    </li>
  </div>
  {% endfor %}
</form>

From base.html:

  <script>

    document.body.addEventListener('htmx:configRequest', (event) => {
        event.detail.headers['X-CSRFToken'] = '{{ csrf_token }}';
    })

    htmx.onLoad(function(content) {
      var sortables = content.querySelectorAll(".sortable");
      for (var i = 0; i < sortables.length; i++) {
        var sortable = sortables[i];
        new Sortable(sortable, {
            animation: 150,
            ghostClass: 'blue-background-class'
        });
      }
    })

  </script>