django - int argument muss eine Zeichenfolge oder eine Zahl sein, nicht 'Tuple'

Question

Ich habe das ein paar Stunden lang angeschaut und ich kann nicht verstehen, warum ich diese Nachricht bekomme.

int() argument must be a string or a number, not 'tuple' 

auf dieser Linie von meinem views.py. (Hinweis: Ausnahme occurrs tatsächlich eine Ebene tiefer in django Kern, aber das ist mein Codezeile, die schließlich die Ausnahme auslöst) ...

service_interest = ServiceInterest.objects.get_or_create(service = service, client = client) 

Warum erhalte ich diesen Fehler? Zu Ihrem Vorteil finden Sie unten models.py, ein forms.py und ein Snippet von views.py.

models.py:

class Client(models.Model): 
    name = models.CharField(max_length=100) 
    email = models.EmailField() 
    site = models.URLField() 
    contact_date = models.DateField(default = datetime.date.today()) 

class Service(models.Model): 
    name = models.CharField(max_length=200) 

class ServiceInterest(models.Model): 
    service = models.ForeignKey('Service') 
    client = models.ForeignKey('Client') 

    class Meta: 
    unique_together = ("service", "client") 

forms.py ...

class ContactForm(forms.Form): 


SERVICE_CHOICES = (
    ('first_choice', 'Description of first choice'), 
    ('second_choice', 'Description of second choice'), 
    ('third_choice', 'Description of third choice'), 
    ('other', 'Other') 
) 

    SERVICE_CHOICES_DICT = dict(SERVICE_CHOICES) 

    name = forms.CharField(label='What would you like us to call you?', max_length=200, required=False) 
    email = forms.EmailField(label='What is your email address?', help_text='Ex: yourname@gmail.com') 
    url = forms.URLField(label='If you have a website, please provide a link', required=False, help_text="Ex: www.yoursite.com") 
    service_interest = forms.MultipleChoiceField(label="Please check all of the services you're interested in:", widget=forms.widgets.CheckboxSelectMultiple, choices=SERVICE_CHOICES, required=True) 
    other = forms.CharField(label='If you selected \"Other\", please specify:', max_length=200, required=False) 
    message = forms.CharField(max_length=10000, required=False, label='Any other information you think we should know?', widget=forms.widgets.Textarea) 

    def clean_other(self): 
    cleaned_data = super(ContactForm, self).clean() 
    if 'service_interest' in cleaned_data.keys(): 
     options = cleaned_data['service_interest'] 
     if 'other' in options: 
     other_input = cleaned_data['other'] 
     if other_input == None or len(other_input) == 0: 
      raise forms.ValidationError('Required when \"Other\" is checked') 

    return cleaned_data 

relevent Code von views.py:

name = form.cleaned_data['name'] 
    email = form.cleaned_data['email'] 
    url = form.cleaned_data['url'] 
    interests = form.cleaned_data['service_interest'] 
    other = form.cleaned_data['other'] 
    message = form.cleaned_data['message'] 

    client = Client.objects.get_or_create(name = name, email = email, site = url) 
    for interest in interests: 
    service = None 
    if(interest != 'other'): 
     service = Service.objects.get_or_create(name = ContactForm.SERVICE_CHOICES_DICT[interest]) 
    else: 
     service = Service.objects.get_or_create(name = other) 

    # Appears to be responsible for the stack trace, even though exception 
    # is one level deeper in... 
    # /Library/Python/2.7/site-packages/django/core/handlers/base.py in get_response 
    service_interest = ServiceInterest.objects.get_or_create(service = service, client = client) 

Answer 1

get_or_create gibt ein Tupel in Form von (instance, created). Der zweite Parameter sagt Ihnen, ob er es erstellen musste oder nicht, offensichtlich genug. Führen Sie stattdessen folgende Schritte aus:

client, created = Client.objects.get_or_create(name = name, email = email, site = url)