feat: add randomize_choices to MultiChoiceQuestion widget

apps/fsm/migrations/0222_multichoiceproblem_randomize_choices.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.1.3 on 2024-11-02 00:12
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fsm', '0221_audio_autoplay'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='multichoiceproblem',
+            name='randomize_choices',
+            field=models.BooleanField(default=False, help_text='If enabled, the choices will be presented in random order'),
+        ),
+    ]

apps/fsm/models/question_widgets.py

@@ -60,6 +60,10 @@ class MultiChoiceProblem(Problem):
     max_selections = models.IntegerField(
         validators=[MinValueValidator(0)], default=1)
     lock_after_answer = models.BooleanField(default=False)
+    randomize_choices = models.BooleanField(
+        default=False,
+        help_text="If enabled, the choices will be presented in random order"
+    )
 
     def clone(self, paper):
         cloned_widget = clone_widget(self, paper)

apps/widgets/serializers/question_widgets/question_widget_serializers.py

@@ -75,7 +75,8 @@ class MultiChoiceProblemSerializer(QuestionWidgetSerializer):
     class Meta(QuestionWidgetSerializer.Meta):
         model = MultiChoiceProblem
         fields = QuestionWidgetSerializer.Meta.fields + \
-            ['min_selections', 'max_selections', 'lock_after_answer', 'choices']
+            ['min_selections', 'max_selections',
+                'lock_after_answer', 'randomize_choices', 'choices']
 
     def create(self, validated_data):
         choices_data = validated_data.pop('choices')