href not accepting loop Django

Question

<table id="tabledata" class="tablecenter" style=" position: static; top:50%;">
<tr>
    <th>Username</th>
    <th>Email</th>
    <th>Role</th>
    <th>Action</th>
    <th>Remove User</th>
</tr>

{% for user in all %}
<tr>
    <td>{{user.first_name}} {{user.last_name}}</td> 
    <td>{{user.email}}</td>
    <td>{% if user.is_staff %} Admin {% else %} Practitioner {% endif %}</td>
    <td><a class="openButton" onclick="openForm()">Edit</a></td>
    <td><a href="{% url 'delete_user' pk=user.id %}" class="openButton">Delete</a></td>
</tr>
{% endfor %}

After running the server on local, the page gives syntax error.

enter image description here

url(r'^delete_user/', views.delete_user, name='delete_user'), — Mithun Sawant, May 07 '22 at 08:41
The solution given on the below link worked for me: https://stackoverflow.com/questions/25345392/how-to-add-url-parameters-to-django-template-url-tag — Mithun Sawant, May 09 '22 at 05:51

Willem Van Onsem · Answer 1 · 2022-05-07T08:56:00.033

0

You are mixing url and path syntax. You use of path converters with path(…) ^[Django-doc], so:

# app_name/urls.py

from django.urls import path

urlpatterns = [
    # …,
    path('delete_user/<int:pk>/', views.delete_user, name='delete_user'),
    # …
]

edited May 07 '22 at 08:56

answered May 07 '22 at 08:45

Willem Van Onsem

443,496
30
428
555

no, need to delete a record from the loop. So I am passing user.id in: Delete to delete it on the next confirmation page. But it shows syntax error – Mithun Sawant May 07 '22 at 08:53
@MithunSawant: then likely in that view there is a syntax error... – Willem Van Onsem May 07 '22 at 08:55
But the same works on the below link: https://arbcoms.com/19-how-to-delete-data-in-django-with-confirm-delete-prompt/ Just not working for me. I have attached a screenshot as well. – Mithun Sawant May 07 '22 at 08:57
@MithunSawant: take a look at the traceback: this should indicate where the syntax error is located... – Willem Van Onsem May 07 '22 at 08:59

Deepak Tripathi · Answer 2 · 2022-05-07T13:12:31.347

0

I think you should use

According to docs https://docs.djangoproject.com/en/4.0/ref/templates/builtins/#url

<table id="tabledata" class="tablecenter" style=" position: static; top:50%;">
<tr>
    <th>Username</th>
    <th>Email</th>
    <th>Role</th>
    <th>Action</th>
    <th>Remove User</th>
</tr>

{% for user in all %}
<tr>
    <td>{{user.first_name}} {{user.last_name}}</td> 
    <td>{{user.email}}</td>
    <td>{% if user.is_staff %} Admin {% else %} Practitioner {% endif %}</td>
    <td><a class="openButton" onclick="openForm()">Edit</a></td>
    <td><a href="{% url 'delete_user' user.id %}" class="openButton">Delete</a></td>
</tr>
{% endfor %}

EDIT

In the tutorial guy is using this url

url(r'^delete_user/<str:pk>', views.delete_user, name='delete_user')

but you are using

url(r'^delete_user/<int:pk>', views.delete_user, name='delete_user')

edited May 07 '22 at 13:12

answered May 07 '22 at 10:41

Deepak Tripathi

3,175
1
8
21

@mithun sawant can you try with this template ? – Deepak Tripathi May 07 '22 at 10:46
even without pk, its the same error – Mithun Sawant May 07 '22 at 11:36
does any user exist with the given id ? share urls.py – Deepak Tripathi May 07 '22 at 11:37
so I tried to use the delete method given on this link referring the video (https://arbcoms.com/19-how-to-delete-data-in-django-with-confirm-delete-prompt/) but using href="{% url 'delete_user' user.id %}" this href it shows syntax error and after removing user.id, the page loads. – Mithun Sawant May 07 '22 at 11:53
@MithunSawant Check my updated answer. – Deepak Tripathi May 07 '22 at 13:12
even if I change the url's, the html page shows syntax error only Delete Same as the screenshot mentioned in my question – Mithun Sawant May 07 '22 at 14:52

href not accepting loop Django

2 Answers2