How to populate initial values of form from queryset - django

Question

I have a FormView with a get_initial method which I am trying to use to populate the form. I am trying to get the EmployeeTypes of the receiver of the memo as values in the form.
def get_initial(self):
initial = super(NotificationView, self).get_initial()
users = Memo.objects.filter(id=self.kwargs['pk']).values('receiver__employee_type')
initial['receiving_groups'] = users
return initial
There are 2 issues here..
This returns a Queryset which looks like: <QuerySet [{'receiver__employee_type': 'Bartender'}, {'receiver__employee_type': 'Supervisor'}]> when I really need the fields in the form to be the EmployeeType itself.
Most importantly - the form isn't even rendering these fields.
Here is the form just in case:
class MemoNotificationForm(forms.Form):
class Meta:
fields = [
'receiving_groups'
]
receiving_groups = forms.MultipleChoiceField(
required=False,
widget=forms.CheckboxSelectMultiple)
How do I populate the fields of the form?
EDIT:
class Memo(models.Model):
receiver = models.ManyToManyField(EmployeeType, related_name='memos_receiver')
class EmployeeType(models.Model):
"""Stores user employee type."""
employee_type = models.CharField(
max_length=32,
unique=True)

Answer 1

Having a Meta on a forms.Form doesn't do anything, this is used for ModelForms
If receiving_groups should be choices of EmployeeType then it should be a ModelMultipleChoiceField
class MemoNotificationForm(forms.Form):
receiving_groups = forms.ModelMultipleChoiceField(
EmployeeType.objects.all(),
widget=forms.CheckboxSelectMultiple
)
Then you should be passing instances, or a queryset of the model in the initial
def get_initial(self):
initial = super(NotificationView, self).get_initial()
initial['receiving_groups'] = EmployeeType.objects.filter(memo__id=self.kwargs['pk'])
return initial
EDIT:
As a ModelForm this could look like so
class MemoNotificationForm(forms.ModelForm):
class Meta:
model = Memo
fields = ('receiver', )
View:
class NotificationView(FormView);
form_class = MemoNotificationForm
def get_form_kwargs(self):
kwargs = super(NotificationView, self).get_form_kwargs()
kwargs['instance'] = get_object_or_404(Memo, id=self.kwargs['pk'])
return kwargs

Answer 2

While #lain Shelvington is correct in the process he used to produce the form results, I had to do a little editing to make the code operate correctly...
def get_initial(self):
initial = super(NotificationView, self).get_initial()
receivers = Memo.objects.filter(id=self.kwargs['pk']).values_list('receiver')
initial['receiving_groups'] = EmployeeType.objects.filter(employee_type=receivers)
return initial