Seeking help with forms and validation in Django using Python.
I have a form with a single field where users can input names. However, I need to ensure that only names supported by a third-party website can be entered. Here is my current forms.py:
class MyModelForm(forms.ModelForm):
class Meta:
model = MyModel
fields = ('title', )
def clean_title(self):
cd = self.cleaned_data
# The following line checks if the name inserted is supported by a 3rd party database.
# cleaned_data should contain the name inserted by the user.
fields = client.search(cleaned_data).name
# If the client returns the same name as the one inserted by the user,
# the post is considered valid.
# If the user inserts a name not found in the 3rd party db, the client sends an error response and the post is rejected.
if (self.cleaned_data.get('title') != fields)
raise ValidationError(
"This name is not supported"
)
return self.cleaned_data
The code may seem messy due to various attempts I've made to achieve this functionality.
Here is views.py
def add_model(request):
if request.method == "POST":
form = MyModelForm(request.POST)
if form.is_valid():
# Setting commit=False ensures the form doesn't save immediately.
# By default, commit is set to True which saves normally.
model_instance = form.save(commit=False)
model_instance.timestamp = timezone.now()
model_instance.save()
return HttpResponseRedirect('/polls/thanks')
else:
form = MyModelForm()
return render(request, "polls/polls.html", {'form': form})
and models.py
class MyModel(models.Model):
title = models.CharField(max_length=25, unique=True, error_messages={'unique':"This name has already been added."})
timestamp = models.DateTimeField()
These are provided just in case they're needed.
I hope you understand my goal and appreciate any tips or examples of code you may provide. Thank you! :)