英文:
Initial form field doesn't set in Django
问题
我有以下设置。
模型：
class Feedbacks(models.Model):user_id = models.ForeignKey(User, on_delete=models.CASCADE, null=True)feedback = models.TextField()rating = models.IntegerField()
表单：
class FeedbackModelForm(ModelForm):class Meta:model = Feedbacksexclude = ['user_id']
视图：
@login_requireddef feedbackPage(request):username = request.user.idif request.method == 'POST':form = FeedbackModelForm(request.POST, initial={'user_id': username})if form.is_valid():form.save()return redirect('feedback_success')else:form = FeedbackModelForm()context = {'form': form}return render(request, 'feedback.html', context)
打印(username)显示当前已认证用户的ID。
在保存过程中，它不会保存user_id字段（它是NULL）。
我需要从已认证的用户中保存user_id字段。
英文:
I have following set up.
Model:
class Feedbacks(models.Model):user_id = models.ForeignKey(User, on_delete=models.CASCADE, null=True)feedback = models.TextField()rating = models.IntegerField()
Form:
class FeedbackModelForm(ModelForm):class Meta:model = Feedbacksexclude = ['user_id']
View:
@login_requireddef feedbackPage(request):username = request.user.idif request.method == 'POST':form = FeedbackModelForm(request.POST, initial={'user_id': username})if form.is_valid():form.save()return redirect('feedback_success')else:form = FeedbackModelForm()context = {'form': form}return render(request, 'feedback.html', context)
Print(username) shows current current authenticated user ID.
During the save procedure it doesn't save user_id field (it's NULL).
I need that user_id field saved from authenticated user.
答案1
得分: 2
看起来问题出在你在视图函数中创建对象时如何设置用户ID。你的代码将一个名为 'user_id' 的表单设置为来自请求对象的用户ID，但这样做是行不通的，因为在你的 FeedbackModelForm 类中已经排除了 'user_id'。
尝试直接在对象上设置 user_id 字段，然后手动保存它，而不是尝试为表单设置初始值。像这样：
views.py
@login_requireddef feedbackPage(request):if request.method == 'POST':form = FeedbackModelForm(request.POST)if form.is_valid():feedbackObj = form.save(commit=False) # commit=False 意味着表单尚未保存到数据库中feedbackObj.user_id = request.user # 将用户设置为当前用户feedbackObj.save() # 将表单保存到数据库中return redirect('feedback_success')else:form = FeedbackModelForm()
这应该解决问题。（至少，我认为会的）
英文:
It looks like the issue is how you are setting the user id when you create the object in your view function. Your code is setting a form called 'user_id' to the user id from the request object but that won't work because you have already excluded 'user_id' in your FeedbackModelForm class.
Instead of trying to set an initial value for the form, try setting the user_id field on the object directly and then saving it manually. Like so:
views.py
@login_requireddef feedbackPage(request):if request.method == 'POST':form = FeedbackModelForm(request.POST)if form.is_valid():feedbackObj = form.save(commit=False) # commit=False means that the form is not saved to the database yetfeedbackObj.user_id = request.user # set the user to the current userfeedbackObj.save() # save the form to the databasereturn redirect('feedback_success')else:form = FeedbackModelForm()
That should fix the issue. (well at least, I think it will)
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