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Je veux apprendre python et web-dev et j'essaie de faire une application web fonctionnelle. En ce moment j'ai un problème avec django-autocomplete-light. J'essaie d'utiliser la saisie semi-automatique pour mon application django. J'ai suivi le tutoriel, mais quand j'essaie de chercher Il dit que The results could not be loaded. Mais les résultats sont affichés dans la liste déroulante. 
Django django-autocomplete-light ne pas montrer les résultats
J'ai un formulaire où l'utilisateur peut ajouter une nouvelle invoce, je suis en train d'utiliser django-autocomplete-lumière pour tous les fournisseurs autocompleting ainsi l'utilisateur, n'a pas besoin de chercher.
Mes modèles:
class Supplier(models.Model):
supp_name = models.CharField(max_length=255)
mat_number = models.CharField(max_length=255)
organ = models.CharField(max_length=255, null=True, blank=True)
street = models.CharField(max_length=255, null=True, blank=True)
email = models.CharField(max_length=255, null=True, blank=True)
def __str__(self):
return self.supp_name.encode("utf-8")
def get_absolute_url(self):
return reverse('supplier-detail', args=[str(self.id)])
def __unicode__(self):
return '%s' % (self.supp_name,)
class Invoice(models.Model):
organization = models.ForeignKey(Group, help_text="organization")
input_peo = models.CharField(max_length=150)
date = models.DateTimeField(auto_now_add=True)
supplier = models.ForeignKey(Supplier, on_delete=models.SET_NULL, null=True, related_name='name')
invoice_number = models.CharField(max_length=100, null=True, blank=True, help_text='Številka preračuna')
price = models.FloatField(null=True, blank=True, help_text='Cena brez DDV')
sum_me = models.IntegerField(null=True, blank=True, help_text='Kolicina')
def __str__(self):
return self.organization.name.encode("utf-8")
def get_absolute_url(self):
return reverse('invoice-detail', args=[str(self.id)])
Mes vues:
class AddInvoice(LoginRequiredMixin, generic.View):
login_url = '/accounts/login/'
redirect_field_name = 'redirect_to'
form_class = InvoiceCreate
template_name = 'invoce/invoce_form.html'
def get(self, request):
form = self.form_class(None)
return render(request, self.template_name, {'form': form})
def post(self, request):
form = self.form_class(request.POST)
if form.is_valid():
invoice = form.save(commit=False)
invoice.organization = request.user.groups.first()
invoice.input_peo = self.request.user.get_full_name()
invoice.supplier = form.cleaned_data['supplier']
invoice.invoice_number = form.cleaned_data['invoice_number']
invoice.price = form.cleaned_data['price']
invoice.sum_me = form.cleaned_data['sum_me']
invoice.save()
return HttpResponseRedirect('/')
return render(request, self.template_name, {'form': form})
'''
*
AUTOCOMPLETE
*
'''
class SupplierAutoComplete(autocomplete.Select2QuerySetView):
def get_queryset(self):
qs = Supplier.objects.all()
if self.q:
qs = qs.filter(name__istartswith=self.q)
return qs
urls:
urlpatterns += [
url(
r'^autocomplete/$',
views.SupplierAutoComplete.as_view(model=Supplier),
name='supplier-autocomplete',
),
]
Si je recherche juste pour autocomplete (/ autocomplete /) dans le navigateur ce que je obtenir: 
mon forms.py:
class InvoiceCreate(forms.ModelForm):
class Meta:
model = Invoice
fields = [
'supplier',
'invoice_number',
'price',
'sum_me',
]
widgets = {
'supplier': autocomplete.ModelSelect2(url='supplier-autocomplete')
}
et enfin mon modèle pour la forme:
{% extends "base_generic.html" %}
{% block content %}
<div class="jumbotron">
<div class="row" style="margin-top:60px">
<form action="" method="post">
{% csrf_token %}
<!-- Left Inputs -->
<div class="col-xs-6 wow animated slideInLeft" data-wow-delay=".5s">
<!-- Supplier -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.supplier.errors }}
<label>Supplier:</label>
<div class="container">
{{ form.supplier }}
</div>
</div>
<!-- invoice_number -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.invoice_number.errors }}
<input type="text" name="invoice_number" id="id_invoice_number" placeholder="Invoice Number" class="form"/>
</div>
<!-- price -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.price.errors }}
<input type="text" name="price" id="id_price" placeholder="Price" class="form"/>
</div>
<!-- sum_me -->
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.sum_me.errors }}
<input type="number" name="sum_me" id="id_sum_me" placeholder="Sum" class="form"/>
</div>
</div><!-- End Left Inputs -->
<!-- Bottom Submit -->
<div class="relative fullwidth col-xs-12">
<!-- Send Button -->
<button type="submit" class="form-btn semibold">Add</button>
</div><!-- End Bottom Submit -->
<!-- Clear -->
<div class="clear"></div>
</form>
</div>
</div>
{{ form.media }}
{% endblock %}
C'est retraçage que je reçois quand je tente de recherche:
[19/Aug/2017 14:29:54] "GET /invoice/autocomplete/?q=frnej HTTP/1.1" 500 16154
[2017-08-19 14:29:54,630] - Broken pipe from ('127.0.0.1', 55490)
Internal Server Error: /invoice/autocomplete/
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/dal/views.py", line 48, in dispatch
return super(ViewMixin, self).dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/base.py", line 88, in dispatch
return handler(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/list.py", line 160, in get
self.object_list = self.get_queryset()
File "/Users/miha/Desktop/#application/django/einvoice/invoice/views.py", line 255, in get_queryset
qs = qs.filter(name__istartswith=self.q)
File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 784, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1261, in add_q
clause, _ = self._add_q(q_object, self.used_aliases)
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1287, in _add_q
allow_joins=allow_joins, split_subq=split_subq,
File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1212, in build_filter
raise FieldError('Related Field got invalid lookup: {}'.format(lookups[0]))
FieldError: Related Field got invalid lookup: istartswith