CODEWITHSUNDEEP
djangodjango-modelsdjango-views
Enes
Enes

Reputation: 341

'list' object has no attribute 'filter'

def g_view(request):
    header_category = Category.objects.all()
    m = Type1.objects.all()
    r=Type2.objects.all()
    g=Type3.objects.all()
    from itertools import chain
    orders=list(sorted(chain(m,r,g),key=lambda objects:objects.start))

    mquery = request.GET.get('m')
    if mquery:
        orders = orders.filter(
            Q(name__icontains=mquery) |
            Q(game__name__icontains=mquery) |
            Q(teams__name__icontains=mquery)).distinct()

(Type is abstract and type1 type2 type3 are inherited classes)

I got this error 'list' object has no attribute 'filter'

Upvotes: 2

Views: 16019

Answers (1)

ruddra
ruddra

Reputation: 51988

Basically when you chain multiple queryset, you loose the ability of queryset. After chaining, they become part of an iterator. And you can access the values of iterator by iterating it or calling list explicitly. You need to do the query before chaining the queryset. 

query = Q(name__icontains=mquery) |
        Q(game__name__icontains=mquery) |
        Q(teams__name__icontains=mquery)

m = Type1.objects.filter(query).distinct()
r = Type2.objects.filter(query).distinct()
g = Type3.objects.filter(query).distinct()


orders=list(sorted(chain(m,r,g),key=lambda objects:objects.start))

Upvotes: 4

Related Questions