Working on a simple project in Django 3.2 and trying to add an edit button, to edit the content of the page. To do that I did: views.py

def UpdateContent(request, pk):
    contents = todo.objects.get(id=pk)

    form = UpdateContent(instance=contents)

    if request.method == 'POST':
        form = UpdateContent(request.POST, instance=contents)
        if form.is_valid():
            form.save()
            return redirect('/')

    context = {'form': form}
    return render(request, 'html/update.html', context)

forms.py

class UpdateContent(ModelForm):
    class Meta:
        model = todo
        fields = ['content']

home.html

        <table class="table table-dark table-hover table-bordered">
          <thead>
            <tr id="tr-table">
              <th id="text-left">#</th>
              <th id="text-center">ITEMS</th>
              <th id="text-right"><i class="material-icons">&#xe872;</i></th>
            </tr>
          </thead>  
          <tbody>
            {% for all_item in all_items%}
              <tr>
                <th id="row" scope="row"> {{ forloop.counter }} </th>
                <td id="content">{{ all_item.content }}</td>
                <form action="delete_todo/{{all_item.id}}/" method="post">
                  {% csrf_token %}
                  <td class="text-right-delete">
                    <button id="btn-delete" class="btn btn-outline-danger">Delete</button> 
                  </td>
                </form>
                <td><a class="btn btn-outline-info" href="{% url 'todo:update' all_item.id %}">Edit</a></td>
             </tr>
            {% endfor %}
          </tbody>
        </table>

update.html

{% extends 'html/main.html' %}
{% load static %}

{% block content %}
    <form action="", method="POST">
    {% csrf_token %}
        {{form}}
        <input type="submit" name="Submit">
    </form>
{% endblock %}

But when I run the code it shows me this error TypeError: UpdateContent() got an unexpected keyword argument 'instance'

Would appreciate any response or suggestion. Thanks!

CodePudding user response：

This is because your form and view have same names. So the view itself getting called recursively.

def UpdateContent(request, pk):
    contents = todo.objects.get(id=pk)

    form = UpdateContent(instance=contents)

    if request.method == 'POST':
        form = UpdateContent(request.POST, instance=contents)
        if form.is_valid():
            form.save()
            return redirect('/')

    context = {'form': form}
    return render(request, 'html/update.html', context)