course categories default icon returning fixed

apps/course/models/course.py

@@ -2,6 +2,7 @@ import os
 from decimal import Decimal
 import math
 from django.db import models
+from django.conf import settings
 from django.db.models import TextChoices
 from django.utils.text import slugify
 from django.utils.translation import gettext_lazy as _

apps/course/serializers/admin.py

@@ -110,6 +110,14 @@ class AdminCourseCategorySerializer(serializers.ModelSerializer):
         lang = get_request_lang(self)
         ret['name'] = get_localized_field(lang, instance.name)
         ret['slug'] = get_localized_field(lang, instance.slug)
+        icon = ret.get('icon')
+        if icon and icon.startswith('/'):
+            request = self.context.get('request')
+            if request:
+                ret['icon'] = request.build_absolute_uri(icon)
+            else:
+                from django.conf import settings
+                ret['icon'] = f"{settings.SITE_DOMAIN}{icon}"
         return ret
 
 class AdminCourseListSerializer(serializers.ModelSerializer):

apps/course/serializers/course.py

@@ -59,6 +59,18 @@ class CourseCategorySerializer(serializers.ModelSerializer):
     def get_course_count(self, obj):
         return obj.course_count
 
+    def to_representation(self, instance):
+        ret = super().to_representation(instance)
+        icon = ret.get('icon')
+        if icon and icon.startswith('/'):
+            request = self.context.get('request')
+            if request:
+                ret['icon'] = request.build_absolute_uri(icon)
+            else:
+                from django.conf import settings
+                ret['icon'] = f"{settings.SITE_DOMAIN}{icon}"
+        return ret
+
 
 class CourseListSerializer(serializers.ModelSerializer):
     category = CourseCategorySerializer()