Question

我无法从基于类的视图中保存图像

我是Django的新手，我可能错过了一些东西。

views.py

class PostCreateView(LoginRequiredMixin,CreateView):
    model = Post    
    fields = ['title', 'content','image']


    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)

models.py


class Post(models.Model):
    title = models.CharField(max_length = 100)
    content = models.TextField()
    created_on = models.TimeField(auto_now = True)
    author = models.ForeignKey(User, on_delete = models.CASCADE,)
    image = models.ImageField(default = 'default.jpg',upload_to = 'post_pics',)

    def save(self, *args, **kwargs):
        super().save(*args,**kwargs)

        img = Image.open(self.image.path)

        if img.height > 300 or img.width > 300:
            output_size = (300, 300)
            img.thumbnail(output_size)
            img.save(self.image.path)


    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('network:post_detail', kwargs={'pk':self.pk})

urls.py

app_name = 'network'
urlpatterns = [
    path('', user_views.PostList.as_view(), name = 'homepage'),
    path('post/<int:pk>/', user_views.PostDetail.as_view(), name = 'post_detail'),
    path('post/new/', user_views.PostCreateView.as_view(), name = 'post_create'),
    path('post/<int:pk>/update', user_views.PostUpdateView.as_view(), name = 'post_update'),
    path('post/<int:pk>/delete', user_views.PostDeleteView.as_view(), name = 'post_delete'),



    path('register/', user_views.register, name="register"),
    path('login/',auth_views.LoginView.as_view(), name="login"),    #we can add the template path manually in as_view()
    path('logout/',auth_views.LogoutView.as_view(), name="logout"),  #default is registration/logout.html



    path('profile/<int:pk>',user_views.ProfileDetail.as_view(),name = 'profile_detail'),
    path('post/new/',user_views.PostCreateView.as_view(),name = 'post-create'), #<app_name>/<model>_form.html
    ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

我希望该帖子随附我保存的图像但实际上它带有默认图片

从基于类的视图中保存图像

0 个答案: