Attendance system using Django

Question

Models

attendance_choices = (
    (\'absent\', \'Absent\'),
    (\'present\', \'Present\')
)

class Head_of_departme         


        

Answer 1

Following dirkgroten I was able to solve the issue, answer allow to render a list employees under the head_of_department(logged in hod) and mark respective attendance .

Models

attendance_choices = (
    ('absent', 'Absent'),
    ('present', 'Present')
)

class Head_of_department(models.Model):
    first_name = models.CharField(max_length=200)
    last_name = models.CharField(max_length=200)
    email = models.CharField(max_length=30)

    def __str__(self):
        return self.first_name 

class Employee(models.Model):
    first_name = models.CharField(max_length=200, unique=True)
    last_name = models.CharField(max_length=200, unique=True)
    head_of_department = models.ForeignKey('Head_of_department', on_delete=models.SET_NULL, blank=True, null=True)
    email = models.EmailField(max_length=100)

     def __str__(self):
        return self.first_name + ' ' + self.last_name

class Attendance(models.Model):
    head_of_department = models.ForeignKey('Head_of_department', on_delete=models.SET_NULL, blank=True, null=True)
    employee = models.ForeignKey('Employee', on_delete=models.CASCADE, )
    attendance = models.CharField(max_length=8, choices=attendance_choices, blank=True)

Views

class Attendancecreate(CreateView):
    model = Attendance
    form_class = Attendanceform
    success_url = '/dashboard/'

    def get_context_data(self,** kwargs):
        context = super(Attendancecreate, self).get_context_data(**kwargs)
        context['formset'] = AttendanceFormset(queryset=Attendance.objects.none(), instance=Head_of_department.objects.get(email=self.request.user.email), initial=[{'employee': employee} for employee in self.get_initial()['employee']])
        return context

    def get_initial(self):
        email = self.request.user.email
        head_of_department = Head_of_department.objects.get(email=email)
        initial = super(Attendancecreate , self).get_initial()
        initial['employee'] = Employee.objects.filter(head_of_department=head_of_department)
        return initial

    def post(self, request, *args, **kwargs,):
        formset = AttendanceFormset(request.POST,queryset=Attendance.objects.none(), instance=Head_of_department.objects.get(email=self.request.user.email), initial=[{'employee': employee} for employee in self.get_initial()['employee']])
        if formset.is_valid():
            return self.form_valid(formset)

    def form_valid(self,formset):
        instances = formset.save(commit=False)
        for instance in instances:
            instance.head_of_department = get_object_or_404(Head_of_department, email=self.request.user.email)
            instance.save()
        return HttpResponseRedirect('/dashboard/')

Forms

class Attendanceform(ModelForm):
    class Meta:
        model = Attendance
        widgets = {'employee' : HiddenInput}
        fields = ('employee','attendance','hod')
AttendanceFormset = inlineformset_factory(Head_of_department,Attendance,form=Attendanceform,fields=('attendance','employee'))

Template

{% csrf_token %}
{{ formset.management_form }}
   {% for form in formset %}
      {{ form.employee.initial }} {{ form.employee}}  {{ form.attendance }}
<br><br>
   {% endfor %}