Re: Comparing two lists

You are assuming you can have address without building.
{% if x.building %}

2017-01-26 0:27 GMT+01:00 Richard Hall <fishingwithjcbs@gmail.com>:
> Hello, I've only just started with Django and need a bit of help steering
> myself in the right direction.
>
> I want to create a page that has a list of possible forms that could be
> filled in for a patient in a medical study and differentiate between those
> forms which have already been completed and those that have yet to be
> started. I have 3 tables: 'Building' which contains the list of forms,
> 'Street' which contains the list of patients and 'Address' which records
> which form exists for each patient. The relevant bit of models.py looks like
> this:
>
> class Building(models.Model):
> crf_code = models.CharField(max_length=6, primary_key=True)
> crf_name = models.CharField(max_length=100)
>
> class Street(models.Model):
> village = models.ForeignKey(Village)
> patient_number = models.PositiveIntegerField()
> initials = models.CharField(max_length=3)
>
>
> class Address(models.Model):
> street = models.ForeignKey(Street, related_name='addresses')
> building = models.ForeignKey(Building, related_name='addresses')
> completed = models.BooleanField(default=False)
>
> I've created a view that creates two lists, one of all buildings (i.e. forms
> that could be entered for a patient) and another of forms already existing,
> filtered by patient id:
>
> def street2(request, patientid):
> context_dict = {}
> try:
> address = Address.objects.filter(street__pk=patientid)
> crf = Building.objects.all()
> context_dict['address'] = address
> context_dict['crf'] = crf
> except Street.DoesNotExist:
> context_dict['address'] = None
> context_dict['crf'] = None
>
> return render(request, 'trial/street2.html', context_dict)
>
> My problem comes with relating the two lists to each other in my template.
> what I want to do is list the buildings and then, depending if the form
> already exists, display an "edit form" or "create form" link:
>
> <div>
> <ul>
> {% for x in address %}
> <li>
> <div>{{ x.building }}</div>
> <div>
> {% if ???? %}
> link to edit form
> {% elif %}
> link to create form
> {% endif %}
> </div>
> </li>
> {% endfor %}
> </ul>
> </div>
>
> I'm not sure if I've explained myself clearly; if not I apologize. I'm only
> just starting out and am floundering a bit. Any help or guidance would be
> hugely appreciated.
>
> Thank you,
>
> Richard
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to django-users+unsubscribe@googlegroups.com.
> To post to this group, send email to django-users@googlegroups.com.
> Visit this group at https://groups.google.com/group/django-users.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-users/237bb16a-d76e-42b9-bd46-a7b2f9c43f4c%40googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.



--

Cordialement, Coues Ludovic
+336 148 743 42

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAEuG%2BTZ5UE9UnePyay-mApr8BiHJwygN98r8XYLDxNgTf7O9Dg%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.