form submitting error

Using Django Forms & APIs
1

in my views.py I have

@login_required
def create(request, id=None):
    if id is not None:
        cat = get_object_or_404(Category, id=id)
        form = CreateCategoryForm(request.POST or None, request.FILES or None, instance=cat, user=request.user)
    else:
        cat = None
        form = CreateCategoryForm(request.POST or None, request.FILES or None, user=request.user)
        
    if request.method == 'POST':
        form.instance.added_by = request.user
        # print(form.instance.added_by)
        if form.is_valid():
            if cat is None:
                form.save()
            else:
                form.save()
            return redirect('category-view')
        else:
            print(form.errors)
            return render(request, 'admin/pages/category/create.html', {'form': form})
    else:
        form = CreateCategoryForm(instance=cat)
    return render(request, 'admin/pages/category/create.html', {'form': form, 'cat': cat})

and in templates I have below form to submit data:

<form method="post" enctype="multipart/form-data">
            {% csrf_token %}
            <div class="mb-3 row">
                <label for="html5-text-input" class="col-md-2 col-form-label">{{form.title.label}}</label> 
                <div class="col-md-10">
                    {{ form.title }}
                    {{ form.title.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-text-input" class="col-md-2 col-form-label">{{form.actionbar.label}}</label> 
                <div class="col-md-10">
                    {{ form.actionbar }}
                    {{ form.actionbar.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-text-input" class="col-md-2 col-form-label">{{form.cover.label}}</label> 
                <div class="col-md-10">
                    {{ form.cover }}
                    {{ form.cover.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="exampleFormControlSelect1" class="col-md-2 col-form-label">{{form.parent.label}}</label>
                <div class="col-md-10">
                    {{ form.parent }}
                    {{ form.parent.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-search-input" class="col-md-2 col-form-label">{{form.cat_type.label}}</label>
                <div class="col-md-10">
                    {{ form.cat_type }}
                    {{ form.cat_type.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-search-input" class="col-md-2 col-form-label">{{form.orientation.label}}</label>
                <div class="col-md-10">
                    {{ form.orientation }}
                    {{ form.orientation.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-search-input" class="col-md-2 col-form-label">{{form.variant.label}}</label>
                <div class="col-md-10">
                    {{ form.variant }}
                    {{ form.variant.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-search-input" class="col-md-2 col-form-label">{{form.tag.label}}</label>
                <div class="col-md-10">
                    {{ form.tag }}
                    {{ form.tag.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="html5-search-input" class="col-md-2 col-form-label">{{form.apioption.label}}</label>
                <div class="col-md-10">
                    {{ form.apioption }}
                    {{ form.apioption.errors }}
                </div>
            </div>
            <div class="mb-3 row">
                <label for="exampleFormControlSelect1" class="col-md-2 col-form-label">{{form.status.label}}</label>
                <div class="col-md-10">
                    {{ form.status }}
                    {{ form.status.errors }}
                </div>
            </div>
            {% comment %} <div class="mb-3 row">
                <label for="exampleFormControlSelect1" class="col-md-2 col-form-label">{{form.added_by.label}}</label>
                <div class="col-md-10">
                    {{ form.added_by }}
                    {{ form.added_by.errors }}
                </div>
            </div> {% endcomment %}
            <button type="submit" class="btn btn-primary">
                <span class="tf-icons bx bx-pie-chart-alt me-1"></span>Save
            </button>
        </form>

Here I uncomment one div

and my I added forms.py below code:

def __init__(self, *args, user=None, **kwargs):
        super(CreateCategoryForm, self).__init__(*args, **kwargs)
        self.fields['added_by'].initial = user.id if user else None
        self.fields['parent'].queryset = Category.objects.filter(cat_type=Category.CatType.PARENT) | Category.objects.filter(id=0)

<ul class="errorlist"><li>added_by<ul class="errorlist"><li>This field is required.</li></ul></li></ul>
2

Side note: When you post code here, please enclose the code between lines of three backtick - ` characters. This means you’ll have a line of ```, then your code, then another line of ```. This forces the forum software to keep your code properly formatted. (I’ve taken the liberty of editing your original post for this. Please try to remember to do this in the future.)

Please post the complete Form class.

3

Thanks you I am new here