Re: Can I only have one "get_queryset" per Viewpage?

I am having trouble understanding what the Debug wants me to fix and how to fix it?

Isn't my models already defined?  Isn't my queryset already defined in variables filter_1, 2 and 3?

Exception Type:	ImproperlyConfigured
Exception Value:	'IndexView' must define 'queryset' or 'model'
Exception Location:	/usr/local/lib/python2.7/dist-packages/django/views/generic/list.py in get_queryset, line 35

views.py

from polls.models import Word, Pronunciation

#_______________________________________________________________________________

class IndexView(generic.ListView):

    template_name = 'polls/index.html'

    #context_object_name = 'latest_poll_list'

#  def get_queryset(self):

    def get_context_data(**kwargs):

        context = super(IndexView, self).get_context_data(**kwargs)

# Filter 1

        filter_1 = Word.objects.filter(pub_date__lte=timezone.now()

                  ).order_by('-pub_date')[:5]

# Filter 2

        filter_2 = Word.objects.filter(translation='')

# Filter 3

        filter_3 = Pronunciation.objects.filter(wordfield__translation='')

        context.update({

            "filter_1": filter_1,

            "filter_2": filter_2,

            "filter_3": filter_3

        })

        return context

#_______________________________________________________________________________

On Tuesday, July 23, 2013 8:17:36 AM UTC+2, Tundebabzy wrote:

Override your get method but it's easier to override the get_context_data method like
# From my head
def get_context_data(**kwargs):
    context = super(IndexView, self).get_context_data(**kwargs)
    #filter1 is already present as latest_poll_list in the context
    filter2 = Word.blah()
    filter3 = Word.blah_blah()
    context.update({
        "filter2": filter2,
        "filter3": filter3
    })
    return context

Sent from my Windows Phone

---

From: Pepsodent Cola
Sent: 7/22/2013 9:47 PM
To: django...@googlegroups.com
Subject: Re: Can I only have one "get_queryset" per Viewpage?

I'm having difficulty understanding the abstract explanations in that documentation.

Could you or somebody else explain this, by showing by example using my code examples?

views.py

class IndexView(generic.ListView):

    template_name = 'polls/index.html'

    context_object_name = 'latest_poll_list'

    def get_queryset(self):

        """

        Return the last five published polls

        (not including those set to be published in the future).

        """

        return Word.objects.filter(

            pub_date__lte=timezone.now()

        ).order_by('-pub_date')[:5]

### Filter 2

#Word.objects.filter(translation='')

### Filter 3

#Pronunciation.objects.filter(wordfield__translation='')

index.html

<h1>index.html</h1>

{% if latest_poll_list %}

    <ul>

    {% for word in latest_poll_list %}

        <li><a href="{% url 'polls:detail' word.id %}">{{ word.wordfield }}</a></li>

    {% endfor %}

    </ul>

{% else %}

    <p>No polls are available.</p>

{% endif %}

How should I write my IndexView class so that Filter 1, 2 and 3 list results are then sent to my index.html template file?

On Monday, July 22, 2013 2:03:59 PM UTC+2, macndesign wrote:

Hi, you can separate your querysets in get_context_data method.

See: https://docs.djangoproject.com/en/dev/ref/class-based-views/mixins-simple/#django.views.generic.base.ContextMixin.get_context_data

2013/7/22 Pepsodent Cola <pepsod...@gmail.com>

Hi,

Can I only have one "get_queryset" for each Viewpage?

If I wanted to add another database list on the same Viewpage how would that code look like for my Django views.py file?

Example:

https://docs.djangoproject.com/en/1.5/intro/tutorial04/#amend-views

from polls.models import Choice, Poll

class IndexView(generic.ListView):

    template_name = 'polls/index.html'

    context_object_name = 'latest_poll_list'

    def get_queryset(self):

        """Return the last five published polls."""

        return Poll.objects.order_by('-pub_date')[:5]

I mean will "context_object_name" be able to separate between several "get_queryset(self)"?

Because I want to have several different poll_lists on the same Viewpage.

context_object_name = 'latest_poll_list'

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Att. Mário Araújo Chaves Neto

Programmer, Designer and U.I. Engineer

MBA in Design Digital - 2008 - FIC

Analysis and Systems Development - 2011 - Estácio

Design and Implementation of Internet Environments - 2003 - FIC

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