Django: Model Form "object has no attribute 'cleaned_data'"

Question

I am trying to make a search form for one of my classes. The model of the form is:

from django import forms
from django.forms import CharField, ModelMultipleChoiceField, ModelChoiceField
from books.models import Book, Author, Category

class SearchForm(forms.ModelForm):
    authors = ModelMultipleChoiceField(queryset=Author.objects.all(),required=False)    
    category = ModelChoiceField (queryset=Category.objects.all(),required=False)
    class Meta:
        model = Book
        fields = ["title"]

And the view I’m using is:

from django.shortcuts import render_to_response, redirect, get_object_or_404
from django.template import RequestContext
from books.models import Book,Author
from books.forms import BookForm, SearchForm
from users.models import User

def search_book(request):
    if request.method == "POST":
        form = SearchForm(request.POST)
        if form.is_valid():
            form = SearchForm(request.POST)
            stitle = form.cleaned_data['title']
            sauthor = form.cleaned_data['author']
            scategory = form.cleaned_data['category']
    else:
        form = SearchForm()
    return render_to_response("books/create.html", {
        "form": form,
    }, context_instance=RequestContext(request))

The form shows up fine, but when I submit it I get an error: 'SearchForm' object has no attribute 'cleaned_data'

I’m not sure what’s going on, can someone help me out? Thanks!

Asked By: Joseph

||

Source

Answer 1

I would write the code like this:

def search_book(request):
    form = SearchForm(request.POST or None)
    if request.method == "POST" and form.is_valid():
        stitle = form.cleaned_data['title']
        sauthor = form.cleaned_data['author']
        scategory = form.cleaned_data['category']
        return HttpResponseRedirect('/thanks/')
    return render_to_response("books/create.html", {
        "form": form,
    }, context_instance=RequestContext(request))

Pretty much like the documentation.

Answered By: hughdbrown

Answer 2

For some reason, you’re re-instantiating the form after you check is_valid(). Forms only get a cleaned_data attribute when is_valid() has been called, and you haven’t called it on this new, second instance.

Just get rid of the second form = SearchForm(request.POST) and all should be well.

Answered By: Daniel Roseman

Answer 3

At times, if we forget the

return self.cleaned_data

in the clean function of django forms, we will not have any data though the form.is_valid() will return True.

Answered By: subramanyam

Answer 4

I was facing the same problem,
I changed the code like this

 if request.method == "POST":
     form = forms.RegisterForm(request.POST)
         if form.is_valid():
             username = form.cleaned_data.get('username')
             fname = form.cleaned_data.get('fname')
             lname = form.cleaned_data.get('lname')
             email = form.cleaned_data.get('email')
             pass1 = form.cleaned_data.get('pass1')
             pass2 = form.cleaned_data.get('pass2')

Answered By: Mohammed KHAISAR

Answer 5

facing the same error

raising error: ‘listing_form’ object has no attribute ‘cleaned_data’
as in traces clean() method triggering .cleaned_data

if request.method == 'POST': 
    form = forms.listing_form(request.POST, request.FILES)
    
    if form.is_valid:
        form = form.clean()
        listing = models.listing.objects.create(
        bid_price = form['bid_price'],
        title = form['title'],
        description = form['description'],
        min_bid = form['min_bid'],
        category = form['category'],
        image = form['image'],
        )

        listing.save()
        return HttpResponse('form-saved')

everything is according to documnetation but still raising error

Answered By: vick

Django: Model Form "object has no attribute 'cleaned_data'"

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