Python id该字段为必填字段-Django formset中出现错误
我正在使用Django 2.2。我的模特是Python id该字段为必填字段-Django formset中出现错误,python,django,django-forms,Python,Django,Django Forms,我正在使用Django 2.2。我的模特是 class Group(models.Model): group_name = models.CharField(max_length=100) def __str__(self): return self.group_name class Category(models.Model): category_name = models.CharField(max_length=50) def __str__
class Group(models.Model):
group_name = models.CharField(max_length=100)
def __str__(self):
return self.group_name
class Category(models.Model):
category_name = models.CharField(max_length=50)
def __str__(self):
return self.category_name
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
board = models.CharField(choices=board_options,max_length=1,null=True)
group = models.ForeignKey(Group,on_delete=models.CASCADE,null=True)
class Subject(models.Model):
subject_name = models.CharField(max_length=50)
subject_category = models.ForeignKey(Category, on_delete=models.CASCADE)
subject_photo = models.ImageField(null=True,blank=True)
def __str__(self):
return self.subject_name
class Subject_Assignment(models.Model):
board = models.CharField(choices=board_options,max_length=1,null=True)
group = models.ForeignKey(Group,on_delete=models.CASCADE,null=True)
Subject = models.ForeignKey(Subject, on_delete=models.CASCADE)
class Mark_Survey(models.Model):
survey_name = models.CharField(max_length=50)
opens_at = models.DateField()
ends_at = models.DateField()
class Survey_Mark(models.Model):
mark_survey = models.ForeignKey(Mark_Survey,on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.CASCADE)
Subject = models.ForeignKey(Subject, on_delete=models.CASCADE)
marks = models.IntegerField()
我在这里创建了一个表格集,我的表格应该得到所有科目的分数。通过使用Subject_赋值,我可以获取特定用户的所有主题
def postsurvey(request,pk):
#post = get_object_or_404(Mark_Survey, pk=pk)
SurveyFormSet = modelformset_factory(Survey_Mark, fields=('marks','Subject'),extra=0)
if request.method == "POST":
formset = SurveyFormSet(request.POST,request.FILES)
print(formset.data)
print(formset.errors)
if formset.is_valid():
post = formset.save(commit=False)
post.mark_survey=pk
post.user=request.user
post.save()
html = "<html><body>Success</body></html>" % now
return HttpResponse(html)
else:
print("failure")
html = "<html><body>failure </body></html>"
return HttpResponse(html)
else:
user=request.user
profile = get_object_or_404(Profile,user_id=user.id)
formset = SurveyFormSet(queryset=Subject_Assignment.objects.filter(Q(board=profile.board) & Q(group=profile.group)))
return render(request, 'subject_assignment_detail.html', {'formset': formset})
def事后调查(请求,主键):
#post=获取对象或404(标记调查,pk=pk)
SurveyFormSet=modelformset\u工厂(调查标记,字段=('marks','Subject'),额外=0)
如果request.method==“POST”:
formset=SurveyFormSet(request.POST、request.FILES)
打印(formset.data)
打印(formset.errors)
如果formset.is_有效():
post=formset.save(commit=False)
post.mark_survey=pk
post.user=request.user
post.save()
html=“Success”%now
返回HttpResponse(html)
其他:
打印(“失败”)
html=“失败”
返回HttpResponse(html)
其他:
user=request.user
profile=get\u object\u或\u 404(profile,user\u id=user.id)
formset=SurveyFormSet(queryset=Subject\u Assignment.objects.filter(Q(board=profile.board)和Q(group=profile.group)))
返回呈现(请求'subject\u assignment\u detail.html',{'formset':formset})
我正在获取id,该字段为必填字段错误。若我在模板中使用了{{hidden}},那个么我将得到一个有效的选择。该选项不是post方法中的可用选项错误之一。我希望以单一形式获得所有主题的分数,并将其保存在相应的表中。我的模板是
<form method="post">
{% csrf_token %}
{{ formset.management_form }}
{% for form in formset %}
{% for hidden in form.hidden_fields %}
{{ hidden }}
{% endfor %}
{{form}}
{% endfor %}
<input type="submit" value="OK">
</form>
{%csrf_令牌%}
{{formset.management_form}
{formset%中表单的%s}
{%用于隐藏在表单中。隐藏的_字段%}
{{隐藏}}
{%endfor%}
{{form}}
{%endfor%}
解决方案是为每个主题实例的标记提供一个值
user=request.user
profile = get_object_or_404(Profile,user_id=user.id)
subjects = Subject_Assignment.objects.filter(
Q(board=profile.board) & Q(group=profile.group)
)
SurveyFormSet = modelformset_factory(
Survey_Mark,
fields=('marks','Subject'),
extra=len(subjects)
)
显示的空表单数量由extra
参数控制,因此我将Subject
s的数量指定给extra
参数并传递初始数据
formset = SurveyFormSet(
initial=[{'marks':'','Subject':x.id} for x in subjects]
)