Django-无法让用户作为ForeignKey正常工作

Question

I am building a Django site to share code for Python games, but I'm running into trouble associating each game with a specific user. I'm trying to do this by using the user as the ForeignKey , which I think is the right approach, but I can't get the user to actually get inserted into the database without using some weird hack (like passing the user as a string into a hidden user field, which is totally insecure and causes other issues.)

class Game(models.Model):
    user = models.ForeignKey(User, blank=True)
    title = models.CharField(max_length=256)
    image = models.ImageField(upload_to='games')
    description = models.CharField(max_length=256)
    requirements = models.CharField(max_length=256)
    code = models.CharField(max_length=256000)

    def __unicode__(self):
        return self.title

class GameForm(forms.ModelForm):

    image = forms.ImageField(required=False)
    code = forms.CharField(widget=PagedownWidget(show_preview=True))

    class Meta:
        model = Game
        fields = ('user','title','image','description','requirements','code')

User.game = property(lambda u: Game.objects.get_or_create(user=u)[0])

<form action="/userprofile/addGame/" method="post">{% csrf_token %}
    {% for field in form.visible_fields %}
        <div class="fieldWrapper">
            {{ field.errors }}
            {{ field.label_tag }}
            <br>
            {{ field }}
            <br><br>
        </div>
    {% endfor %}
    <input type="submit" value="Save">
</form>

@login_required
def add_game(request):
    user = request.user
    error_message = None

    if request.method == 'POST':
        form = GameForm(request.POST)
        if form.is_valid():
            form = form.save(commit=False)
            form.uploader = request.user
            form.save()
            return HttpResponseRedirect('/userprofile')
        else:
            error_message = "Invalid Input"
    else:
        form = GameForm()

    args = {}
    args.update(csrf(request))
    args['user'] = user
    args['form'] = form
    args['error_message'] = error_message

    return render_to_response('addgame.html', args)

Cannot assign None: "Game.user" does not allow null values.

I realize that a User instance has not been passed into the form, thus I am getting a 'shouldn't be null' error, but I have no idea how to properly pass in the User instance to the form. I've looked at several questions on this exact issue, such as this , but I still haven't been able to get User successfully passed in to the form.

Answer 1

form.uploader = request.user

Should be:

form.user = request.user

I dont see uploader attribute in your Game model

In the GameForm Meta class, the following line should include a user field:

fields = ('title','image','description','requirements','code')