How to use Django function based view to update a model?-CodePudding

I used a class based view to update a user profile using this code

class EditProfileViewClass(generic.UpdateView):
    model = UserProfile
    fields = ['bio', 'profile pic']
    template_name = 'users/update.html'
    success_url = reverse_lazy('home')

path('profile/<int:pk>/update', EditProfileViewClass.as_view(), name="profile"),

<a href="{% url 'profile' user.id %}">Your Profile</a>

the issue right now is, Instead of having the url like the one above, I want it to be like

path('profile/<str:username>/update', EditProfileViewClass.as_view(), name="profile"),

but unfortunately I get an attribute error saying:

Generic detail view EditProfileView must be called with either an object pk or a slug in the URLconf.

So I tried making a function based view so I can get the "username" from the url, doing that didn't allow me to get the form I needed to update the specific username.

Any help would be great. Thanks.

CodePudding user response：

In your EditProfileViewClass view you can add pk_url_kwarg or slug_url_kwarg.

class EditProfileViewClass(UpdateView):
    model = UserProfile
    fields = ['bio', 'profile pic']
    template_name = 'users/update.html'
    success_url = reverse_lazy('home')
    pk_url_kwarg = 'username'
    slug_url_kwarg = 'username'

CodePudding user response：

You can use a class-based view, you only need to update the the slug_field (which determines on what should be used), and the slug_url_kwargs:

class EditProfileViewClass(UpdateView):
    model = UserProfile
    fields = ['bio', 'profile_pic']
    template_name = 'users/update.html'
    success_url = reverse_lazy('home')
    slug_field = 'user__username'
    slug_url_kwarg = 'username'

This will thus take the username parameter of the URL, and it will filter the queryset to only retrieve a UserProfile that is linked to a user with that username.