django-在循环中获取无线电按钮的输入

Question

我需要一个缺席控制的页面，所有用户都循环循环，并且在每个用户显示3个无线电按钮时：存在，缺席和允许的_absent。为每个用户填写后，应提交。

这是我代码的重要部分：

html baksgewijs_attendance.html

   <form class="createattendance-form" action="" method="POST" enctype="multipart/form-data">
            {% csrf_token %}
            {{ form.non_field_errors }}
            {% for user in users %}
            {{ user }}
            <div class="form-group">
                <div>
                    {{ form.attendance}}
                    {{ form.attendance.errors }}
                </div>
            </div>
            {% endfor %}
            <br>
        <div class="form-group">
            <button type="submit" class="btn btn-primary save"> Save absence </button>
        </div>
        </form>

models.py

class Attendance(models.Model):
    attendance = models.CharField(max_length=13)
    user = models.ForeignKey('puma_core.User', on_delete=models.CASCADE)
    baksgewijs = models.ForeignKey(Baksgewijs, on_delete=models.CASCADE)
    def __str__(self):
        return self.attendance
 

forms.py

attendance_choices = (
    ('absent', 'Afwezig'),
    ('allowedabsent', 'Geoorloofd afwezig'),
    ('present', 'Aanwezig'),
)


class CreateAttendance(forms.ModelForm):
    class Meta:
        model = Attendance
        fields = ['attendance']
        widgets = {
            'attendance': forms.RadioSelect(choices=attendance_choices)
        }

views.pys.py

def baksgewijs_attendance(request):
    peloton = Peloton.objects.all()
    users = User.objects.all()
    if request.method == "POST":
        form = CreateAttendance(request.POST, request.FILES)
        if form.is_valid():
            form.save()
            message = messages.success(request, ("De aanwezigheid is opgeslagen"))
            return HttpResponseRedirect(reverse("baksgewijs_index"), {
                "message" : message
            })
        else:
            return render(request, 'baksgewijs/baksgewijs_attendance.html', {"form": CreateAttendance})

user.objects.all提供了所有用户名。

问题是：这样，我只能总共选择一个选项，而我希望能够选择每个用户的缺席。我该如何解决？

Answer 1

您应该考虑使用表单集代替表单：

.djangoproject.com/en/4.0/topics/forms/Forms/

给您一个想法

attendance_choices = (
    ('absent', 'Afwezig'),
    ('allowedabsent', 'Geoorloofd afwezig'),
    ('present', 'Aanwezig'),
)


class CreateAttendance(forms.ModelForm):
    class Meta:
        model = Attendance
        fields = ['user', 'attendance']
        widgets = {
            'attendance': forms.RadioSelect(choices=attendance_choices)
        }

from django.forms import formset_factory
AttendanceFormSet = formset_factory(CreateAttendance)

。

def baksgewijs_attendance(request):
    peloton = Peloton.objects.all()
    users = User.objects.all()
    if request.method == "POST":
        formset = AttendanceFormSet(request.POST, request.FILES)
        if formset.is_valid():
            formset.save()
            message = messages.success(request, ("De aanwezigheid is opgeslagen"))
            return HttpResponseRedirect(reverse("baksgewijs_index"), {
                "message" : message
            })
        else:
            return render(request, 'baksgewijs/baksgewijs_attendance.html', {"formset": AttendanceFormSet(initial={'user': users})})