不允许的方法（POST）：/items/

Question

So i'm trying to do a filter with django, to filter the items on the main page. A little context:

An item can be assigned to a user or not. I want a filter, to see what items are assigned and which items aren't.

This is my function in views.py :

class ItemsView(ListView):
    template_name = 'inventory/items.html'
    context_object_name = 'items_list'

    def get_queryset(self):
        if (self.request.user.is_authenticated):
            
            if self.request.method == "get":
                searched = self.request.GET.get('searched')
                
                if searched == "None":
                    return Item.objects.filter(assigned_user__isnull=True, company=getCompany(self.request.user))
        
                else:
                    return Item.objects.filter(assigned_user__isnull=False, company=getCompany(self.request.user))
            
            else:
                return Item.objects.filter(company=getCompany(self.request.user))

And this is from my items.html :

<form method="post" action="/items">
    {% csrf_token %}
    <select name="item_filter">
        <option value="None">Not Checked In</option>
        <option value="Checked_In">Checked In</option>
    </select>
    <input type="submit" value="filter">
</form>

So basically what i want is, that the user can pick one of the two choices in the dropdown-menu, and the items should be listed based on the choice he made.

When i use this form and click the submit button, the screen gets white and in my console, the error Method Not Allowed (POST): /items/ appears. Has this something to do with the fact i'm using the generic.ListView for my view?

Thank you

Answer 1

in list view is POST not allowed. But you dont need it: In template:

<form action="/items">
    <select name="item_filter">
        <option value>Not Checked In</option>
        <option value="Checked_In">Checked In</option>
    </select>
    <input type="submit" value="filter">
</form>

in view:

class ItemsView(ListView):
    ... # any staff

    def get_queryset(self):
        query = {'company':getCompany(self.request.user)}
        if (self.request.user.is_authenticated):
                query[assigned_user__isnull] = bool(self.request.GET.get('item_filter'))
        return Item.objects.filter(query)