Accessing two returned values in Django view - django

Question

I have my form clean method return two values. How do I distinguish the two variables in my view. Basically, I want to use the form data to check the database and return an object if it exists so that I can pass it to a new view. My goal is to not hit the database twice, once to see if the object exists and another time to retrieve it to display to the user.
Forms.py
class DocumentCodeLookup(forms.Form):
code = forms.CharField(max_length=15, error_messages={'required': 'Whoops! Please enter the Document Code from your ticket.'})
def clean_code(self):
code = self.cleaned_data['code'].upper()
if (re.match(r'^[A-Z0-9]{4,8}[-][A-Z0-9]{6}$',code)):
code_parts = code.split('-')
try:
q = Code.objects.get( user_defined_code__name=code_parts[0], document_code=code_parts[1] )
except Code.DoesNotExist:
raise forms.ValidationError("Hmmm, we couldn't find that document.")
else:
raise forms.ValidationError("Hmmm, we couldn't find that document.")
return code, q
Views.py
def index(request):
code_lookup_form = DocumentCodeLookup()
if request.method == 'POST':
code_lookup_form = DocumentCodeLookup(request.POST)
if code_lookup_form.is_valid:
redirect('document', x = q) # I want to pass the returned object to the view
return render_to_response('base/splash_page.html' ,{
'code_lookup_form' : code_lookup_form
}, context_instance=RequestContext(request))

Answer 1

Will clean_field even work like that?
http://docs.djangoproject.com/en/dev/ref/forms/validation/#cleaning-a-specific-field-attribute
Note the comment.
You can put the attr on the form with self.
class DocumentCodeLookup(forms.Form):
code = forms.CharField(max_length=15, error_messages={'required': 'Whoops! Please enter the Document Code from your ticket.'})
def clean_code(self):
code = self.cleaned_data['code'].upper()
if (re.match(r'^[A-Z0-9]{4,8}[-][A-Z0-9]{6}$',code)):
code_parts = code.split('-')
self.q = None
try:
self.q = Code.objects.get( user_defined_code__name=code_parts[0], document_code=code_parts[1] )
except Code.DoesNotExist:
raise forms.ValidationError("Hmmm, we couldn't find that document.")
else:
raise forms.ValidationError("Hmmm, we couldn't find that document.")
return code
q is on the form.
def index(request):
code_lookup_form = DocumentCodeLookup()
if request.method == 'POST':
code_lookup_form = DocumentCodeLookup(request.POST)
if code_lookup_form.is_valid():
redirect('document', x = code_lookup_form.q) # <---
return render_to_response('base/splash_page.html' ,{
'code_lookup_form' : code_lookup_form
}, context_instance=RequestContext(request))