quiz multilanguage added

apps/quiz/admin/question.py

@@ -1,9 +1,11 @@
 from django import forms
 from django.contrib import admin
+from django.utils.translation import gettext_lazy as _
 
 from unfold.admin import ModelAdmin, TabularInline, StackedInline
 from unfold.forms import forms
 
+from apps.course.models.course import extract_text_from_json
 from apps.quiz.models import Question
 
 from utils.admin import project_admin_site
@@ -35,7 +37,7 @@ from utils.admin import project_admin_site
 #     )
 @admin.register(Question)
 class QuestionAdmin(ModelAdmin):
-    list_display = ('question', 'correct_answer', 'quiz', 'priority')
+    list_display = ('question_display', 'correct_answer', 'quiz', 'priority')
     ordering = ("priority", "id",)
     search_fields = ('question', 'quiz__title')
     list_filter = ('quiz',)
@@ -59,6 +61,10 @@ class QuestionAdmin(ModelAdmin):
         )
     )
 
+    @admin.display(description=_('Question'))
+    def question_display(self, obj):
+        return extract_text_from_json(obj.question)
+
 class QuestionAdminInline(StackedInline):
     model = Question
     ordering = ("priority", "id",)

apps/quiz/admin/quiz.py

@@ -20,7 +20,7 @@ from utils.admin import project_admin_site, admin_url_generator
 
 class QuizAdmin(ModelAdmin):
     search_fields = ['title', 'description']
-    list_display = ['title', 'description', 'lesson', 'each_question_timing', 'status_display', 'questions_display']
+    list_display = ['title_display', 'description_display', 'lesson', 'each_question_timing', 'status_display', 'questions_display']
     list_filter = ['each_question_timing', 'status']
     inlines = [QuestionAdminInline, QuizParticipantInline]
     compressed_fields = True    
@@ -117,14 +117,33 @@ class QuizAdmin(ModelAdmin):
         queryset, use_distinct = super().get_search_results(request, queryset, search_term)
         matching_course_ids = self._find_matching_course_ids(search_term)
         matching_lesson_ids = self._find_matching_lesson_ids(search_term)
+        matching_quiz_ids = []
 
-        if matching_course_ids or matching_lesson_ids:
+        normalized = (search_term or "").strip().lower()
+        if normalized:
+            for quiz in self.model.objects.all().only("id", "title", "description"):
+                title_text = extract_text_from_json(quiz.title).lower()
+                description_text = extract_text_from_json(quiz.description).lower()
+                if normalized in title_text or normalized in description_text:
+                    matching_quiz_ids.append(quiz.id)
+
+        if matching_course_ids or matching_lesson_ids or matching_quiz_ids:
             queryset = queryset | self.model.objects.filter(
-                Q(course_id__in=matching_course_ids) | Q(lesson_id__in=matching_lesson_ids)
+                Q(id__in=matching_quiz_ids) |
+                Q(course_id__in=matching_course_ids) |
+                Q(lesson_id__in=matching_lesson_ids)
             )
             use_distinct = True
 
         return queryset, use_distinct
+
+    @display(description=_('Title'))
+    def title_display(self, obj):
+        return extract_text_from_json(obj.title)
+
+    @display(description=_('Description'))
+    def description_display(self, obj):
+        return extract_text_from_json(obj.description)
     
     @display(description=_('Status'), ordering='status')
     def status_display(self, obj):

apps/quiz/migrations/0005_multilingual_quiz_fields.py

@@ -0,0 +1,137 @@
+# Generated by Codex on 2026-06-11
+
+from django.db import migrations, models
+
+
+def _is_multilingual_list(value):
+    return isinstance(value, list) and all(
+        isinstance(item, dict) and item.get("language_code")
+        for item in value
+    )
+
+
+def _normalize_multilingual(value):
+    if value in (None, "", []):
+        return []
+
+    if _is_multilingual_list(value):
+        normalized_items = []
+        for item in value:
+            title = item.get("title") or item.get("text") or item.get("value") or item.get("name")
+            language_code = item.get("language_code") or "en"
+            if title:
+                normalized_items.append({"title": title, "language_code": language_code})
+        return normalized_items
+
+    if isinstance(value, dict):
+        language_map_keys = {"fa", "en", "ru", "ar", "tr"}
+        if any(key in value for key in language_map_keys):
+            return [
+                {"title": title, "language_code": language_code}
+                for language_code, title in value.items()
+                if title
+            ]
+
+        title = value.get("title") or value.get("text") or value.get("value") or value.get("name")
+        language_code = value.get("language_code") or "en"
+        return [{"title": title, "language_code": language_code}] if title else []
+
+    if isinstance(value, list):
+        normalized_items = []
+        for item in value:
+            if isinstance(item, dict):
+                title = item.get("title") or item.get("text") or item.get("value") or item.get("name")
+                language_code = item.get("language_code") or "en"
+                if title:
+                    normalized_items.append({"title": title, "language_code": language_code})
+            elif item not in (None, ""):
+                normalized_items.append({"title": str(item), "language_code": "en"})
+        return normalized_items
+
+    return [{"title": str(value), "language_code": "en"}]
+
+
+def forwards(apps, schema_editor):
+    Quiz = apps.get_model("quiz", "Quiz")
+    Question = apps.get_model("quiz", "Question")
+
+    for quiz in Quiz.objects.all().iterator():
+        quiz.title_i18n = _normalize_multilingual(quiz.title)
+        quiz.description_i18n = _normalize_multilingual(quiz.description)
+        quiz.save(update_fields=["title_i18n", "description_i18n"])
+
+    for question in Question.objects.all().iterator():
+        question.question_i18n = _normalize_multilingual(question.question)
+        question.option1_i18n = _normalize_multilingual(question.option1)
+        question.option2_i18n = _normalize_multilingual(question.option2)
+        question.option3_i18n = _normalize_multilingual(question.option3)
+        question.option4_i18n = _normalize_multilingual(question.option4)
+        question.save(
+            update_fields=[
+                "question_i18n",
+                "option1_i18n",
+                "option2_i18n",
+                "option3_i18n",
+                "option4_i18n",
+            ]
+        )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("quiz", "0004_alter_question_options"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="quiz",
+            name="title_i18n",
+            field=models.JSONField(default=list, help_text="Quiz Title", verbose_name="Title"),
+        ),
+        migrations.AddField(
+            model_name="quiz",
+            name="description_i18n",
+            field=models.JSONField(blank=True, default=list, verbose_name="Description"),
+        ),
+        migrations.AddField(
+            model_name="question",
+            name="question_i18n",
+            field=models.JSONField(default=list, verbose_name="Question"),
+        ),
+        migrations.AddField(
+            model_name="question",
+            name="option1_i18n",
+            field=models.JSONField(default=list, verbose_name="Option 1"),
+        ),
+        migrations.AddField(
+            model_name="question",
+            name="option2_i18n",
+            field=models.JSONField(default=list, verbose_name="Option 2"),
+        ),
+        migrations.AddField(
+            model_name="question",
+            name="option3_i18n",
+            field=models.JSONField(default=list, verbose_name="Option 3"),
+        ),
+        migrations.AddField(
+            model_name="question",
+            name="option4_i18n",
+            field=models.JSONField(default=list, verbose_name="Option 4"),
+        ),
+        migrations.RunPython(forwards, migrations.RunPython.noop),
+        migrations.RemoveField(model_name="quiz", name="title"),
+        migrations.RemoveField(model_name="quiz", name="description"),
+        migrations.RemoveField(model_name="question", name="question"),
+        migrations.RemoveField(model_name="question", name="option1"),
+        migrations.RemoveField(model_name="question", name="option2"),
+        migrations.RemoveField(model_name="question", name="option3"),
+        migrations.RemoveField(model_name="question", name="option4"),
+        migrations.RenameField(model_name="quiz", old_name="title_i18n", new_name="title"),
+        migrations.RenameField(model_name="quiz", old_name="description_i18n", new_name="description"),
+        migrations.RenameField(model_name="question", old_name="question_i18n", new_name="question"),
+        migrations.RenameField(model_name="question", old_name="option1_i18n", new_name="option1"),
+        migrations.RenameField(model_name="question", old_name="option2_i18n", new_name="option2"),
+        migrations.RenameField(model_name="question", old_name="option3_i18n", new_name="option3"),
+        migrations.RenameField(model_name="question", old_name="option4_i18n", new_name="option4"),
+    ]

apps/quiz/models/quiz.py

@@ -1,6 +1,7 @@
 from django.db import models
 from django.utils.translation import gettext_lazy as _
 from apps.account.models import User
+from apps.course.models.course import extract_text_from_json, format_multilingual_field
 
 
 
@@ -8,8 +9,8 @@ class Quiz(models.Model):
     lesson = models.ForeignKey("course.CourseLesson", verbose_name=_('Lesson'), related_name='quizzes', on_delete=models.CASCADE)
     course = models.ForeignKey("course.Course", verbose_name=_('Course'), related_name='quizzes', on_delete=models.CASCADE , null=True, blank=True)
     
-    title = models.CharField(max_length=255, verbose_name=_('Title'), help_text=_("Quiz Title"))
-    description = models.CharField(max_length=55, blank=True, null=True, verbose_name=_("Description"))
+    title = models.JSONField(default=list, verbose_name=_('Title'), help_text=_("Quiz Title"))
+    description = models.JSONField(default=list, blank=True, verbose_name=_("Description"))
     each_question_timing = models.PositiveIntegerField(verbose_name=_("Each Question Timing"))
     status = models.BooleanField(default=True, verbose_name=_("Status"))
 
@@ -29,6 +30,8 @@ class Quiz(models.Model):
         # Automatically set the course based on the selected lesson
         if self.lesson_id and hasattr(self.lesson, 'course'):
             self.course = self.lesson.course
+        self.title = format_multilingual_field(self.title)
+        self.description = format_multilingual_field(self.description)
         super().save(*args, **kwargs)
 
 
@@ -41,11 +44,11 @@ class Question(models.Model):
     ]
 
     quiz = models.ForeignKey(Quiz, verbose_name=_('Quiz'), on_delete=models.CASCADE, related_name='questions')
-    question = models.CharField(max_length=255, verbose_name=_('Question'))
-    option1 = models.CharField(max_length=255, verbose_name=_('Option 1'))
-    option2 = models.CharField(max_length=255, verbose_name=_('Option 2'))
-    option3 = models.CharField(max_length=255, verbose_name=_('Option 3'))
-    option4 = models.CharField(max_length=255, verbose_name=_('Option 4'))
+    question = models.JSONField(default=list, verbose_name=_('Question'))
+    option1 = models.JSONField(default=list, verbose_name=_('Option 1'))
+    option2 = models.JSONField(default=list, verbose_name=_('Option 2'))
+    option3 = models.JSONField(default=list, verbose_name=_('Option 3'))
+    option4 = models.JSONField(default=list, verbose_name=_('Option 4'))
     correct_answer = models.PositiveSmallIntegerField(choices=CHOICES, verbose_name=_('Correct Answer'))
     created_at = models.DateTimeField(auto_now_add=True, verbose_name=_('Created At'))
     priority = models.IntegerField(null=True, blank=True, verbose_name=_('Priority'))
@@ -57,7 +60,7 @@ class Question(models.Model):
         ordering = ("priority", "id",)
 
     def __str__(self):
-        return self.question
+        return extract_text_from_json(self.question)
 
     def __repr__(self):
         return f"Question(id={self.id})"
@@ -66,6 +69,11 @@ class Question(models.Model):
         if self.priority is None:
             max_priority = Question.objects.filter(quiz=self.quiz).aggregate(models.Max('priority'))['priority__max']
             self.priority = (max_priority or 0) + 1
+        self.question = format_multilingual_field(self.question)
+        self.option1 = format_multilingual_field(self.option1)
+        self.option2 = format_multilingual_field(self.option2)
+        self.option3 = format_multilingual_field(self.option3)
+        self.option4 = format_multilingual_field(self.option4)
         super().save(*args, **kwargs)
 
 

apps/quiz/serializers/admin.py

@@ -40,13 +40,17 @@ class AdminQuizListSerializer(serializers.ModelSerializer):
     participants_count = serializers.SerializerMethodField()
     course_title = serializers.SerializerMethodField()
     lesson_title = serializers.SerializerMethodField()
+    title_i18n = serializers.JSONField(source='title', read_only=True)
+    description_i18n = serializers.JSONField(source='description', read_only=True)
 
     class Meta:
         model = Quiz
         fields = [
             'id', 
             'title', 
+            'title_i18n',
             'description', 
+            'description_i18n',
             'each_question_timing', 
             'status', 
             'course', 
@@ -76,19 +80,30 @@ class AdminQuizListSerializer(serializers.ModelSerializer):
         raw_title = obj.lesson.title or (obj.lesson.lesson.title if obj.lesson.lesson else None)
         return get_localized_field(lang, raw_title)
 
+    def to_representation(self, instance):
+        ret = super().to_representation(instance)
+        lang = get_request_lang(self)
+        ret['title'] = get_localized_field(lang, instance.title)
+        ret['description'] = get_localized_field(lang, instance.description)
+        return ret
+
 
 class AdminQuizDetailSerializer(serializers.ModelSerializer):
     questions_count = serializers.SerializerMethodField()
     participants_count = serializers.SerializerMethodField()
     course_title = serializers.SerializerMethodField()
     lesson_title = serializers.SerializerMethodField()
+    title_i18n = serializers.JSONField(source='title', read_only=True)
+    description_i18n = serializers.JSONField(source='description', read_only=True)
 
     class Meta:
         model = Quiz
         fields = [
             'id', 
             'title', 
+            'title_i18n',
             'description', 
+            'description_i18n',
             'each_question_timing', 
             'status', 
             'course', 
@@ -119,22 +134,53 @@ class AdminQuizDetailSerializer(serializers.ModelSerializer):
         raw_title = obj.lesson.title or (obj.lesson.lesson.title if obj.lesson.lesson else None)
         return get_localized_field(lang, raw_title)
 
+    def to_representation(self, instance):
+        ret = super().to_representation(instance)
+        lang = get_request_lang(self)
+        ret['title'] = get_localized_field(lang, instance.title)
+        ret['description'] = get_localized_field(lang, instance.description)
+        return ret
+
 
 class AdminQuestionSerializer(serializers.ModelSerializer):
+    question_i18n = serializers.JSONField(source='question', read_only=True)
+    option1_i18n = serializers.JSONField(source='option1', read_only=True)
+    option2_i18n = serializers.JSONField(source='option2', read_only=True)
+    option3_i18n = serializers.JSONField(source='option3', read_only=True)
+    option4_i18n = serializers.JSONField(source='option4', read_only=True)
+
     class Meta:
         model = Question
         fields = [
             'id', 
             'quiz', 
             'question', 
+            'question_i18n',
             'option1', 
+            'option1_i18n',
             'option2', 
+            'option2_i18n',
             'option3', 
+            'option3_i18n',
             'option4', 
+            'option4_i18n',
             'correct_answer', 
             'priority'
         ]
 
+    def _get_localized_value(self, value):
+        lang = get_request_lang(self)
+        return get_localized_field(lang, value)
+
+    def to_representation(self, instance):
+        ret = super().to_representation(instance)
+        ret['question'] = self._get_localized_value(instance.question)
+        ret['option1'] = self._get_localized_value(instance.option1)
+        ret['option2'] = self._get_localized_value(instance.option2)
+        ret['option3'] = self._get_localized_value(instance.option3)
+        ret['option4'] = self._get_localized_value(instance.option4)
+        return ret
+
 
 class AdminParticipantAnswerSerializer(serializers.ModelSerializer):
     class Meta:

apps/quiz/serializers/quiz.py

@@ -1,6 +1,7 @@
 from rest_framework import serializers
 
 from apps.course.access import user_has_course_access
+from apps.course.models.course import get_localized_field
 from apps.quiz.models import Question, Quiz, QuizParticipant
 
 
@@ -12,11 +13,23 @@ from apps.quiz.models import Question, Quiz, QuizParticipant
 class QuizListSerializer(serializers.ModelSerializer):
     is_complated = serializers.SerializerMethodField()
     permission = serializers.SerializerMethodField()
+    title = serializers.SerializerMethodField()
+    description = serializers.SerializerMethodField()
 
     class Meta:
         model = Quiz
         fields = ['id', 'title', 'description', 'permission', 'each_question_timing', 'is_complated']
 
+    def get_title(self, obj):
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
+        return get_localized_field(lang, obj.title)
+
+    def get_description(self, obj):
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
+        return get_localized_field(lang, obj.description)
+
     def get_permission(self, obj):
         request = self.context.get('request')
         if not request or not request.user.is_authenticated:
@@ -48,12 +61,20 @@ class QuizListSerializer(serializers.ModelSerializer):
 
 class QuestionSerializer(serializers.ModelSerializer):
     options = serializers.SerializerMethodField()
+    question = serializers.SerializerMethodField()
+
+    def get_question(self, obj):
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
+        return get_localized_field(lang, obj.question)
 
     def get_options(self, obj) -> list:
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
         return [
             {
                 'id': i,
-                'title': getattr(obj, f"option{i}")
+                'title': get_localized_field(lang, getattr(obj, f"option{i}"))
             } for i in range(1, 5)
         ]
 
@@ -66,11 +87,23 @@ class QuizSerializer(serializers.ModelSerializer):
     lesson = serializers.PrimaryKeyRelatedField(read_only=True)
     questions = QuestionSerializer(many=True)
     permission = serializers.SerializerMethodField()
+    title = serializers.SerializerMethodField()
+    description = serializers.SerializerMethodField()
 
     class Meta:
         model = Quiz
         fields = ['id', 'permission', 'lesson', 'title', 'description', 'each_question_timing', 'questions']
 
+    def get_title(self, obj):
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
+        return get_localized_field(lang, obj.title)
+
+    def get_description(self, obj):
+        request = self.context.get('request')
+        lang = getattr(request, 'LANGUAGE_CODE', None) or 'en'
+        return get_localized_field(lang, obj.description)
+
     def get_permission(self, obj):
         request = self.context.get('request')
         if not request or not request.user.is_authenticated:

apps/quiz/views/admin.py

@@ -68,6 +68,21 @@ def find_matching_lesson_ids(search_term: str):
     return matching_ids
 
 
+def find_matching_quiz_ids(search_term: str):
+    normalized = (search_term or "").strip().lower()
+    if not normalized:
+        return []
+
+    matching_ids = []
+    for quiz in Quiz.objects.all().only("id", "title", "description"):
+        title_text = extract_text_from_json(quiz.title).lower()
+        description_text = extract_text_from_json(quiz.description).lower()
+        if normalized in title_text or normalized in description_text:
+            matching_ids.append(quiz.id)
+
+    return matching_ids
+
+
 class AdminQuizViewSet(ModelViewSet):
     """
     Admin CRUD ViewSet for Quiz management.
@@ -96,15 +111,15 @@ class AdminQuizViewSet(ModelViewSet):
             has_search = True
             matching_course_ids = find_matching_course_ids(search_query)
             matching_lesson_ids = find_matching_lesson_ids(search_query)
+            matching_quiz_ids = find_matching_quiz_ids(search_query)
             from django.db.models import Case, When, Value, IntegerField
             queryset = queryset.filter(
-                Q(title__icontains=search_query) |
-                Q(description__icontains=search_query) |
+                Q(id__in=matching_quiz_ids) |
                 Q(course_id__in=matching_course_ids) |
                 Q(lesson_id__in=matching_lesson_ids)
             ).annotate(
                 search_relevance=Case(
-                    When(title__icontains=search_query, then=Value(2)),
+                    When(id__in=matching_quiz_ids, then=Value(2)),
                     default=Value(1),
                     output_field=IntegerField()
                 )