Resolve "Add rules and permissions"

Closes #73 (closed)

Closes #79 (closed)

aleksis/apps/alsijil/forms.py

@@ -4,6 +4,7 @@ from django import forms
 from django.core.exceptions import ValidationError
 from django.db.models import Count, Q
 from django.utils.translation import gettext_lazy as _
+from django_global_request.middleware import get_request
 
 from django_select2.forms import Select2Widget
 from guardian.shortcuts import get_objects_for_user
@@ -75,7 +76,7 @@ class SelectForm(forms.Form):
         return data
 
     def __init__(self, *args, **kwargs):
-        self.request = kwargs.pop("request")
+        self.request = get_request()
         super().__init__(*args, **kwargs)
 
         person = self.request.user.person
@@ -98,7 +99,7 @@ class SelectForm(forms.Form):
                     ).values_list("pk", flat=True)
                 )
             ).union(group_qs.filter(Q(members=person) | Q(owners=person)))
-        self.fields["group"].queryset = group_qs
+        self.fields["group"].queryset = group_qs.distinct()
 
         teacher_qs = Person.objects.annotate(
             lessons_count=Count("lessons_as_teacher")