英文:
How do i save the user in django model from class based views
问题
我认为问题出在 save 方法中，你需要在这里保存用户到你的模型中。在函数式视图中，你可以通过 request.user 来获取用户，并将其保存为 post.author。在类视图中，你可以通过 self.request.user 来获取用户。
这是一个修改后的 save 方法的示例：
def save(self, *args, **kwargs):
instance = super().save(commit=False)
instance.author = self.request.user
instance.save()
return instance
在这个示例中，我们首先调用了父类的 save 方法，将 commit 设置为 False，以便我们可以在保存之前修改实例。然后，我们将 self.request.user 分配给 instance.author，最后保存实例并返回它。
这应该能够解决你在类视图中保存用户的问题。希望这对你有所帮助！
英文:
I'm moving across from function-based views to class-based views but am having some trouble saving the user in my database.
I managed to get it to work (after some trying!) in my function based view:
# def create_post(request, *args, **kwargs): #function based view for creating a post - this works
# if request.method == "POST":
# form = PostForm(request.POST)
# if form.is_valid():
# post = form.save(commit=False)
# post.author = request.user
# post.save()
# messages.success(request, "Post submitted!")
# form = PostForm()
# else:
# form = PostForm()
#
# context = {
# 'form': form
# }
# return render(request, "create_post.html", context)
but can't get it to work when doing classed based views.
CreatePostView:
class CreatePostView(CreateView):
model = Post
form_class = PostForm
template_name = "create_post.html"
Post model:
class Post(models.Model):
author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.SET_NULL, default=None, null=True)
title = models.CharField(max_length=100)
slug = models.SlugField()
description = models.TextField(max_length=500)
date = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse("posts:post_detail", args=(str(self.id),))
Post Form:
class PostForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['title'].label = ""
self.fields['description'].label = ""
class Meta:
model = Post
fields = ['title', 'description']
widgets = {
'title': forms.TextInput(attrs={'class': "title w-full bg-gray-100 border border-gray-300 p-2 mb-4 outline-none",
'spellcheck': "false", 'placeholder': "Title", 'type': "text"}),
'description': forms.Textarea(attrs={'class': "description w-full bg-gray-100 sec p-3 h-60 border border-gray-300 outline-none",
'spellcheck': "false", 'placeholder': "Describe everything about this post here", 'type': "text"}),
}
def save(self, *args, **kwargs):
obj = form.save(commit=False)
obj.user = request.user
obj.save()
I think the problem lies in the save method, I don't really understand what I need to do here to save my user in my model. With the function based view I just grabbed the user with request.user and saved it as my post.author.
答案1
得分: 1
你可以重写.form_valid(...) [Django-doc]方法，在表单有效时运行，在表单保存和重定向之前运行：
class CreatePostView(CreateView):
model = Post
form_class = PostForm
template_name = 'create_post.html'
def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form)
注意: 您可以使用
LoginRequiredMixinmixin [Django-doc]来限制视图只对已认证的用户可见。
英文:
You can override <code>.form_valid(…)</code> <sup>[Django-doc]</sup> to run when the form is valid, and before the form is saved and a redirect is made:
<pre><code>class CreatePostView(CreateView):
model = Post
form_class = PostForm
template_name = 'create_post.html'
def form_valid(self, form):
<b>form.instance.author = self.request.user</b>
return super().form_valid(form)</code></pre>
> Note: You can limit views to a class-based view to authenticated users with the
> LoginRequiredMixin mixin <sup>[Django-doc]</sup>.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论