.

2022-03-01 19:21:38 +00:00
parent d2042b646a
commit 4ff9cc2dce
2 changed files with 15 additions and 19 deletions
@@ -227,24 +227,19 @@ class LongForm(ModelForm):
        }

    def save(self, commit=True):
-        # Get the unsaved Long instance
        instance = ModelForm.save(self, False)
-
-        # Prepare a 'save_m2m' method for the form,
-        old_save_m2m = self.save_m2m
-
-        def save_m2m():
-            old_save_m2m()
-            instance.exams.clear()
-            for exam in self.cleaned_data["exams"]:
-                # We need the id here
-                instance.exams.add(exam.pk)
-
-        self.save_m2m = save_m2m
-
-        # Do we need to save all changes now?
-        # if commit:
        instance.save()
+
+        old_exams = instance.exams.all()
+
+        new_exams = self.cleaned_data["exams"]
+
+        for exam in old_exams:
+            if exam not in new_exams:
+                exam.exam_questions.remove(instance)
+
+        for exam in new_exams:
+            exam.exam_questions.add(instance)
        self.save_m2m()

        return instance