update

backEnd/case_studies/serializers.py

@@ -47,10 +47,11 @@ class CaseStudyProcessSerializer(serializers.ModelSerializer):
 
 class CaseStudyListSerializer(serializers.ModelSerializer):
     """Serializer for case study list view"""
-    category_name = serializers.CharField(source='category.name', read_only=True)
-    category_slug = serializers.CharField(source='category.slug', read_only=True)
-    client_name = serializers.CharField(source='client.name', read_only=True, allow_null=True)
+    category_name = serializers.SerializerMethodField()
+    category_slug = serializers.SerializerMethodField()
+    client_name = serializers.SerializerMethodField()
     thumbnail = serializers.SerializerMethodField()
+    excerpt = serializers.SerializerMethodField()
     
     class Meta:
         model = CaseStudy
@@ -61,6 +62,25 @@ class CaseStudyListSerializer(serializers.ModelSerializer):
             'views_count', 'featured', 'published', 'display_order'
         ]
     
+    def get_category_name(self, obj):
+        return obj.category.name if obj.category else None
+    
+    def get_category_slug(self, obj):
+        return obj.category.slug if obj.category else None
+    
+    def get_client_name(self, obj):
+        return obj.client.name if obj.client else None
+    
+    def get_excerpt(self, obj):
+        if obj.excerpt:
+            return obj.excerpt
+        if obj.description:
+            # Strip HTML tags and get first 200 characters
+            import re
+            text = re.sub(r'<[^>]+>', '', obj.description)
+            return text[:200] + '...' if len(text) > 200 else text
+        return ''
+    
     def get_thumbnail(self, obj):
         return obj.get_thumbnail_url
 
@@ -103,9 +123,15 @@ class CaseStudyDetailSerializer(serializers.ModelSerializer):
     
     def get_related_case_studies(self, obj):
         """Get related case studies from the same category"""
-        related = CaseStudy.objects.filter(
-            category=obj.category,
-            published=True
-        ).exclude(id=obj.id)[:3]
+        if not obj.category:
+            # If no category, get any published case studies
+            related = CaseStudy.objects.filter(
+                published=True
+            ).exclude(id=obj.id)[:3]
+        else:
+            related = CaseStudy.objects.filter(
+                category=obj.category,
+                published=True
+            ).exclude(id=obj.id)[:3]
         return CaseStudyListSerializer(related, many=True, context=self.context).data