Can i use a filtre in a template in django? - django

Question

I made a loop allowing me to display for each page questions and answers utilisers.
I wonder if it's possible in the template to "filter" to get only the issues of page 1 for example?
<form action="" method="GET">
{{ form.as_p }}
{% for page in pages %}<hr>
{{ page }}:
<br>{% for reply in page.reply_set.all %}<br> {{ reply.question }} --> {{ reply.answer }} (Author : {{ reply.user }}) {% endfor %}
{% endfor %}
I have a fields ManytoMany so this is what it's hard to understand...
class Question(models.Model):
label = models.CharField(max_length=30)
def __str__(self):
return self.label
class Page(models.Model):
title = models.CharField(max_length=30)
def __str__(self):
return self.title
class Reply(models.Model):
page = models.ManyToManyField(Page)
question = models.ForeignKey(Question)
user = models.ForeignKey(Personne)
answer = models.CharField(max_length=30)
creationDate = models.DateTimeField(default=timezone.now(),blank=True, verbose_name="Date de création")
def __str__(self):
return str(self.answer)
You can see on this screenshot I have tree pages('name visit 1 visit 2 visit 3) and i want just the first visit what is the loop for get this ?
The best I would get is the page that I want based on the id
EDIT : views.py
def access(request,instance):
replies = Reply.objects.all()
questions = Question.objects.values()
logged_user = get_logged_user_from_request(request)
numPages = Page.objects.get(pk=instance)
pages = Page.objects.all()
# pagesfilter = Page.objects.get(pk=instance).reply_set.all()
form = ReplyForm(request.GET)
personnes = Personne.objects.all()
if logged_user:
if len(request.GET) > 0:
form = ReplyForm(request.GET)
if form.is_valid():
form.save(commit=True)
return HttpResponseRedirect('/reply')
else:
return render_to_response('polls/access.html', {'pagesfilter':pagesfilter, 'numPages': numPages, 'personnes': personnes, 'replies': replies, 'questions': questions,'pages':pages, 'form': form})
else:
form = ReplyForm()
return render_to_response('polls/access.html', {'pagesfilter':pagesfilter, 'numPages': numPages, 'personnes':personnes, 'replies': replies, 'questions': questions, 'pages':pages, 'form': form})
else:
return HttpResponseRedirect('/login')

Answer 1

If you know visit1 is the first element in the loop you can do:
{% for page in pages %}<hr>
{% if forloop.first %}
{{ page }}:
<br>{% for reply in page.reply_set.all %}<br> {{ reply.question }} --> {{ reply.answer }} (Author : {{ reply.user }}) {% endfor %}
{% endif %}
{% endfor %}
But the best way, I think, is to get visit1 in your view through a query and send it then to the template.
EDIT
As your view looks
numPages = Page.objects.get(pk=instance)
gets the Page you want. So, in template you could use it:
{{ numPage }}
{% for reply in numPage.reply_set.all %}
{{ reply.question }}--> {{ reply.answer }}(Author : {{ reply.user }})
{% endfor %}