course fileds updated for multilangual feat . serializers synced and dropdown values handle multilangual fileds statically

apps/course/migrations/0009_alter_course_description_and_more.py

@@ -0,0 +1,38 @@
+# Generated by Django 5.2.12 on 2026-06-06 09:11
+
+from django.db import migrations, models
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0008_remove_course_course_cour_status_57ffd9_idx_and_more'),
+    ]
+
+    operations = [
+        migrations.SeparateDatabaseAndState(
+            database_operations=[
+                migrations.RunSQL(
+                    sql=[
+                        "ALTER TABLE course_course ALTER COLUMN description TYPE jsonb USING CASE WHEN description IS NULL OR description = '' THEN '[]'::jsonb ELSE jsonb_build_array(jsonb_build_object('title', description, 'language_code', 'en')) END;",
+                        "ALTER TABLE course_course ALTER COLUMN short_description TYPE jsonb USING CASE WHEN short_description IS NULL OR short_description = '' THEN '[]'::jsonb ELSE jsonb_build_array(jsonb_build_object('title', short_description, 'language_code', 'en')) END;"
+                    ],
+                    reverse_sql=[
+                        "ALTER TABLE course_course ALTER COLUMN description TYPE text USING CASE WHEN jsonb_array_length(description) > 0 THEN description->0->>'title' ELSE '' END;",
+                        "ALTER TABLE course_course ALTER COLUMN short_description TYPE varchar(500) USING CASE WHEN jsonb_array_length(short_description) > 0 THEN LEFT(short_description->0->>'title', 500) ELSE '' END;"
+                    ]
+                )
+            ],
+            state_operations=[
+                migrations.AlterField(
+                    model_name='course',
+                    name='description',
+                    field=models.JSONField(blank=True, default=list, null=True, verbose_name='Course Description'),
+                ),
+                migrations.AlterField(
+                    model_name='course',
+                    name='short_description',
+                    field=models.JSONField(blank=True, default=list, null=True, verbose_name='Short Description'),
+                ),
+            ]
+        )
+    ]

apps/course/models/course.py

@@ -113,6 +113,130 @@ class CourseCategory(models.Model):
     def course_count(self):
         return self.courses.exclude(status="inactive").count()
 
+LEVEL_TRANSLATIONS = {
+    'beginner': {
+        'en': 'Beginner',
+        'ru': 'Начальный',
+    },
+    'mid': {
+        'en': 'Mid Level',
+        'ru': 'Средний',
+    },
+    'advanced': {
+        'en': 'Advanced',
+        'ru': 'Продвинутый',
+    }
+}
+
+STATUS_TRANSLATIONS = {
+    'inactive': {
+        'en': 'Inactive',
+        'ru': 'Неактивен',
+    },
+    'upcoming': {
+        'en': 'Upcoming',
+        'ru': 'Предстоящий',
+    },
+    'registering': {
+        'en': 'Registering',
+        'ru': 'Регистрация',
+    },
+    'ongoing': {
+        'en': 'Ongoing',
+        'ru': 'В процессе',
+    },
+    'finished': {
+        'en': 'Finished',
+        'ru': 'Завершен',
+    }
+}
+
+def normalize_level(value):
+    if not value:
+        return 'beginner'
+    text = extract_text_from_json(value).lower().strip()
+    if 'beginner' in text or 'начальн' in text or 'начинающ' in text:
+        return 'beginner'
+    if 'mid' in text or 'средн' in text:
+        return 'mid'
+    if 'advanced' in text or 'продвинут' in text:
+        return 'advanced'
+    return 'beginner'
+
+def normalize_status(value):
+    if not value:
+        return 'inactive'
+    text = extract_text_from_json(value).lower().strip()
+    if 'inactive' in text or 'неактив' in text:
+        return 'inactive'
+    if 'upcoming' in text or 'предстоящ' in text:
+        return 'upcoming'
+    if 'registering' in text or 'регистрац' in text:
+        return 'registering'
+    if 'ongoing' in text or 'в процессе' in text:
+        return 'ongoing'
+    if 'finished' in text or 'заверш' in text or 'законч' in text:
+        return 'finished'
+    return 'inactive'
+
+WEEKDAY_TRANSLATIONS = {
+    'monday': {
+        'en': 'Monday',
+        'ru': 'Понедельник',
+        'fa': 'دوشنبه',
+    },
+    'tuesday': {
+        'en': 'Tuesday',
+        'ru': 'Вторник',
+        'fa': 'سه‌شنبه',
+    },
+    'wednesday': {
+        'en': 'Wednesday',
+        'ru': 'Среда',
+        'fa': 'چهارشنبه',
+    },
+    'thursday': {
+        'en': 'Thursday',
+        'ru': 'Четверг',
+        'fa': 'پنج‌شنبه',
+    },
+    'friday': {
+        'en': 'Friday',
+        'ru': 'Пятница',
+        'fa': 'جمعه',
+    },
+    'saturday': {
+        'en': 'Saturday',
+        'ru': 'Суббота',
+        'fa': 'شنبه',
+    },
+    'sunday': {
+        'en': 'Sunday',
+        'ru': 'Воскресенье',
+        'fa': 'یک‌شنبه',
+    }
+}
+
+def normalize_weekday_to_key(day_value):
+    if not day_value:
+        return 'saturday'
+    txt = str(day_value).lower().strip()
+    if 'monday' in txt or 'понедельник' in txt or 'دوشنبه' in txt:
+        return 'monday'
+    if 'tuesday' in txt or 'вторник' in txt or 'سه شنبه' in txt or 'سه‌شنبه' in txt:
+        return 'tuesday'
+    if 'wednesday' in txt or 'среда' in txt or 'چهارشنبه' in txt:
+        return 'wednesday'
+    if 'thursday' in txt or 'четверг' in txt or 'پنج شنبه' in txt or 'پنج‌شنبه' in txt:
+        return 'thursday'
+    if 'friday' in txt or 'пятница' in txt or 'جمعه' in txt:
+        return 'friday'
+    if 'saturday' in txt or 'суббота' in txt or 'شنبه' in txt:
+        return 'saturday'
+    if 'sunday' in txt or 'воскресенье' in txt or 'یک شنبه' in txt or 'یک‌شنبه' in txt:
+        return 'sunday'
+    return 'saturday'
+
 class Course(models.Model):
     
     class LevelChoices(TextChoices):
@@ -163,8 +287,8 @@ class Course(models.Model):
     duration = models.PositiveIntegerField(verbose_name=_('Duration (in hours)'))
     lessons_count = models.PositiveIntegerField(verbose_name=_('Number of Lessons'))
     
-    description = models.TextField(verbose_name=_('Course Description'))
-    short_description = models.CharField(max_length=500, blank=True, null=True, verbose_name=_("Short Description"))
+    description = models.JSONField(default=list, null=True, blank=True, verbose_name=_('Course Description'))
+    short_description = models.JSONField(default=list, null=True, blank=True, verbose_name=_("Short Description"))
     status = models.JSONField(default=list, null=True, blank=True, verbose_name=_('Course Status'))
     is_free = models.BooleanField(default=True, verbose_name=_('Is Free'))
     price = models.DecimalField(max_digits=10, decimal_places=2, default=0.00, verbose_name=_('Course Price'))
@@ -225,9 +349,79 @@ class Course(models.Model):
                 self.slug = []
         else:
             self.slug = format_multilingual_field(self.slug)
-        self.level = format_multilingual_field(self.level)
-        self.status = format_multilingual_field(self.status)
-        self.timing = format_multilingual_field(self.timing)
+
+        level_key = normalize_level(self.level)
+        self.level = [
+            {"title": LEVEL_TRANSLATIONS[level_key]["en"], "language_code": "en"},
+            {"title": LEVEL_TRANSLATIONS[level_key]["ru"], "language_code": "ru"},
+        ]
+
+        status_key = normalize_status(self.status)
+        self.status = [
+            {"title": STATUS_TRANSLATIONS[status_key]["en"], "language_code": "en"},
+            {"title": STATUS_TRANSLATIONS[status_key]["ru"], "language_code": "ru"},
+        ]
+
+        self.description = format_multilingual_field(self.description)
+        self.short_description = format_multilingual_field(self.short_description)
+        # Process timing (translate weekdays)
+        import json
+        raw_timings = []
+        val = self.timing
+        if val:
+            if isinstance(val, str):
+                try:
+                    val = json.loads(val)
+                except Exception:
+                    pass
+            
+            if isinstance(val, list) and all(isinstance(x, dict) and 'language_code' in x for x in val):
+                # We can extract the timing list from any language item
+                extracted = []
+                for x in val:
+                    title_val = x.get('title')
+                    if title_val:
+                        if isinstance(title_val, str):
+                            try:
+                                title_val = json.loads(title_val)
+                            except Exception:
+                                pass
+                        if isinstance(title_val, list):
+                            extracted = title_val
+                            break
+                raw_timings = extracted
+            elif isinstance(val, list):
+                raw_timings = val
+            elif isinstance(val, dict):
+                raw_timings = []
+                for k, v in val.items():
+                    raw_timings.append({"day": k, "time": str(v)})
+
+        en_timings = []
+        ru_timings = []
+        fa_timings = []
+        for item in raw_timings:
+            if isinstance(item, dict):
+                day_key = normalize_weekday_to_key(item.get('day'))
+                time_val = item.get('time') or item.get('timing') or ''
+                en_timings.append({
+                    "day": WEEKDAY_TRANSLATIONS.get(day_key, {}).get('en', item.get('day', '')),
+                    "time": time_val
+                })
+                ru_timings.append({
+                    "day": WEEKDAY_TRANSLATIONS.get(day_key, {}).get('ru', item.get('day', '')),
+                    "time": time_val
+                })
+                fa_timings.append({
+                    "day": WEEKDAY_TRANSLATIONS.get(day_key, {}).get('fa', item.get('day', '')),
+                    "time": time_val
+                })
+
+        self.timing = [
+            {"language_code": "fa", "title": json.dumps(fa_timings)},
+            {"language_code": "en", "title": json.dumps(en_timings)},
+            {"language_code": "ru", "title": json.dumps(ru_timings)},
+        ]
         self.features = format_multilingual_field(self.features)
 
         # Ensure consistency: if price is 0, set is_free to True and discount_percentage to 0

apps/course/serializers/course.py

@@ -46,6 +46,7 @@ class CourseListSerializer(serializers.ModelSerializer):
     slug = serializers.SerializerMethodField()
     level = serializers.SerializerMethodField()
     status = serializers.SerializerMethodField()
+    short_description = serializers.SerializerMethodField()
 
     class Meta:
         model = Course        
@@ -85,6 +86,9 @@ class CourseListSerializer(serializers.ModelSerializer):
     def get_status(self, obj):
         return get_localized_field(self._lang(), obj.status)
 
+    def get_short_description(self, obj):
+        return get_localized_field(self._lang(), obj.short_description)
+
     def get_thumbnail(self, obj):
         return get_thumbs(obj.thumbnail, self.context.get('request'))
     
@@ -146,6 +150,8 @@ class CourseDetailSerializer(serializers.ModelSerializer):
     status = serializers.SerializerMethodField()
     timing = serializers.SerializerMethodField()
     features = serializers.SerializerMethodField()
+    description = serializers.SerializerMethodField()
+    short_description = serializers.SerializerMethodField()
 
     class Meta:
         model = Course        
@@ -415,6 +421,12 @@ class CourseDetailSerializer(serializers.ModelSerializer):
     def get_status(self, obj):
         return get_localized_field(self._lang(), obj.status)
 
+    def get_description(self, obj):
+        return get_localized_field(self._lang(), obj.description)
+
+    def get_short_description(self, obj):
+        return get_localized_field(self._lang(), obj.short_description)
+
     def _parse_builder_payload(self, value):
         if value is None:
             return None
@@ -483,6 +495,7 @@ class MyCourseListSerializer(serializers.ModelSerializer):
     title = serializers.SerializerMethodField()
     slug = serializers.SerializerMethodField()
     status = serializers.SerializerMethodField()
+    short_description = serializers.SerializerMethodField()
 
     class Meta:
         model = Course
@@ -571,6 +584,9 @@ class MyCourseListSerializer(serializers.ModelSerializer):
 
     def get_status(self, obj):
         return get_localized_field(self._lang(), obj.status)
+
+    def get_short_description(self, obj):
+        return get_localized_field(self._lang(), obj.short_description)
     
 
 class AttachmentSerializer(serializers.ModelSerializer):

apps/course/views/admin.py

@@ -91,6 +91,10 @@ class AdminCourseViewSet(viewsets.ModelViewSet):
             elif is_free_param.lower() == 'false':
                 queryset = queryset.filter(is_free=False)
 
+        student_id = self.request.query_params.get('student_id', None)
+        if student_id:
+            queryset = queryset.filter(participants__student_id=student_id)
+
         return queryset.order_by('-id')
 
     def perform_create(self, serializer):