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I have a form that users enter in information on locations. I'm trying to make an update form so users can click the update button on a location and the update form comes populated with the data thats already there for that location. I have followed the Django docs but I am getting a blank screen. I am unsure how to get it to reference which location to update. Here is what I have so far.
models.py
class Location(models.Model):
# Details on location
views.py
def locations(request):
return render_to_response('locations/locations.html', {'locations': Location.objects.all() })
def location(request, location_id=1):
return render_to_response('locations/location.html', {'location': Location.objects.get(id=location_id) })
def create(request):
if request.POST:
form = LocationForm(request.POST, request.FILES)
if form.is_valid():
form.save()
return HttpResponseRedirect('/accounts/loggedin/locations/all/')
else:
form = LocationForm()
args = {}
args.update(csrf(request))
args['form'] = form
return render_to_response('locations/create_location.html', args)
def edit_location(request):
if request.POST:
form = LocationUpdate(request.POST, request.FILES)
if form.is_valid():
form.save()
return HttpResponseRedirect('/accounts/loggedin/locations/all/')
else:
form = LocationUpdate()
args = {}
args.update(csrf(request))
args['form'] = form
return render_to_response('locations/location_update.html', args)
forms.py
from django.views.generic.edit import UpdateView
from models import Location
class LocationForm(forms.ModelForm):
class Meta:
model = Location
exclude = ('timestamp', 'updated')
class LocationUpdate(UpdateView):
model = Location
template_name_suffix = '_update_form'
url.py
url(r'^accounts/loggedin/location/update/$', 'assessments.views.edit_location'),
location_update.html
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="update" />
</form>
</body>
</html>
or should it go in location.html. If i add it in there i get a CSRF verification failed error
<div class="row">
<div class="col-md-4">
<dl class="dl-horizontal">
<dt>ID:</dt>
<dd>{{ location.id }}</dd>
<br />
<dt>Company:</dt>
<dd>{{ location.company }}</dd>
<dt>Address:</dt>
<dd>{{ location.address }}</dd>
<dt>Town:</dt>
<dd>{{ location.town_city }}</dd>
<dt>County:</dt>
<dd>{{ location.county }}</dd>
<dt>Telephone:</dt>
<dd>{{ location.tel }}</dd>
###### ect #####
</div>
</div>
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="update" />
</form>
505
I see a few problems:
If you are going to use an update view, you don't need to wrap it in another view or use it as a form, it is entirely self-contained.
In your views.py (not forms.py):
from .models import Location
from .forms import LocationForm
class LocationUpdateView(UpdateView):
model = Location
template_name = 'locations/location_update.html'
form_class = LocationForm
success_url = '/accounts/loggedin/locations/all/'
In your urls.py:
url('location/update/(?P<pk>\d+)/$', LocationUpdateView.as_view(),
name='location-update'),
If you wire it up like this, you need to call the update view with the primary key of the location object you want to update. This will make sure that the form is populated with the data; so call it like this <a href="{% url 'location-update' pk=1 %}">update location id 1</a>.
If you do not want to use the class based view, then your view should be updated to load the data first, populate the form, then send the form to the user, and just like the UpdateView above, you need to pass in the primary key (or other reference), to load the object for which you are editing the record:
def update_location(request, pk=None):
obj = get_object_or_404(Location, pk=pk)
form = LocationForm(request.POST or None,
request.FILES or None, instance=obj)
if request.method == 'POST':
if form.is_valid():
form.save()
return redirect('/accounts/loggedin/locations/all/')
return render(request, 'locations/location_update.html', {'form': form})
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