Hi I am trying to update a record. Form.save() worked but it created a new
record and I have yet to figure out how to update a database record in
views.py. Below are the 2 views related to what I'm doing. On one page I
list customers to be chosen for update. When a customer is chosen, the pk
is posted back and the user is redirected to the edit page. Any idea how I
can update the db record with the form's cleaned data? Thanks
# Allows for the customer record to be selected
# Then directs to an edit form
class listcustomers(ListView):
model = dbCustomer
template_name = "mysite/admin_listcustomers.html"
queryset = dbCustomer.objects.all()
context_object_name = 'customerlist'
paginate_by= 1
def post(self,request):
for key in request.POST:
if "customer_" in key:
print(key, request.POST[key])
if request.POST[key] == "Edit":
pk = re.findall('\d', key)
if pk:
# returned pk has been verified
# dump cusomer id into a session variable
# and redirect for editing
request.session['customer_pk'] =int(pk[0])
return redirect("editcustomer")
else:
pass
return render(request,self.template_name,)
# This is where the selected customer gets the form to allow editing
def editcustomer(request):
template_name='mysite/admin_editcustomer.html'
pk = request.session['customer_pk']
qs = dbCustomer.objects.get(id=pk)
# Posted for saving
if request.method=="POST":
form = frmCustomer(request.POST)
if form.is_valid():
# here I tried form.save() hoping frmcustomer would be bound
# to the record the queryset pulled, it isn't.
# form.save() just created a new record
# I have the pk.
# How do I simply update the record from the form.cleaned data
# This did not work
dbCustomer.objects.filter(pk).update(form.cleaned_data)
print(form.cleaned_data["contactfn"]) #Cleaned data is there.
# If updated, get rid of currect session variable
request.session['customer_pk']=''
# return to the customer list
return redirect("listcustomers")
else:
args = {"form":form,}
return render(request,template_name,args)
else:
# Getting for editing
form = frmCustomer(initial=model_to_dict(qs))
args = {'form':form,}
return render(request,template_name,args)
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