Django, htmx delete record and update

ghz 8months ago ⋅ 60 views

So I have a list in a partial Django template.

<div class="col">
    <div class="row pb-2" id="rowcolor">
        <div class="col border-bottom">
            pk:{{ color.pk }} / name:{{ color.description|title }}
        </div>
        <div class="col-auto">
            <button hx-delete="{% url 'delete-color' pk=color.pk %}" hx-target="#rowcolor" hx-swap="outerHTML"
                class="btn btn-outline-secondary btn-sm float-end" type="button">Delete</button>
        </div>
    </div>
</div>

enter image description here

When deleting the pk149/name3: the pk147 / name1 disappears.

When refreshing it is correct. pk:149 is gone.

The view looks like this:

@require_http_methods(["DELETE"])
def delete_color(request, pk):
    if request.htmx:
        Color.objects.get(pk=pk).delete()

        return HttpResponse("")

I have been trying to read the htmx documentation. But I do not understand. Can anyone please point me in the right direction here?

Answers

It looks like you're using htmx to perform AJAX (asynchronous) deletion of color objects in your Django application. However, the issue you're encountering seems to be related to the way htmx updates the HTML after the deletion.

When you delete a color object using htmx, the corresponding HTML element is removed from the DOM using the hx-swap="outerHTML" attribute on the delete button. However, if the list of color objects is not properly updated after deletion, it could lead to inconsistencies like the one you're experiencing.

Here are a few things you can check to troubleshoot and fix the issue:

  1. Ensure Correct Target: Make sure that the hx-target attribute on the delete button is targeting the correct HTML element that needs to be updated after deletion. In your case, it seems like you're targeting the parent row (#rowcolor), which should be correct.

  2. Verify Server-Side Deletion: Double-check that the server-side deletion of the color object (Color.objects.get(pk=pk).delete()) is working correctly and deleting the correct object. You can add some debugging statements or log messages in your view function to verify this.

  3. Check Response Content: Use browser developer tools to inspect the response content returned by the server after deletion. Make sure it's empty (as you're returning HttpResponse("")) and doesn't contain any unexpected content.

  4. Verify DOM Structure: Ensure that the DOM structure of your list of color objects is correct after deletion. The deleted color object should be removed from the list, and the remaining objects should retain their correct positions.

  5. Check for JavaScript Errors: Look for any JavaScript errors in the browser console that might be preventing htmx from updating the DOM properly after deletion. These errors could indicate issues with your client-side JavaScript code.

By carefully checking these points, you should be able to identify and fix the issue with the inconsistent behavior after deleting a color object using htmx in your Django application. If you're still having trouble, feel free to provide more details or code snippets, and I'd be happy to assist further!

#django