blog reordering action added

apps/blog/views_admin.py

@@ -3,6 +3,8 @@ from rest_framework.viewsets import ModelViewSet
 from rest_framework.permissions import IsAuthenticated, IsAdminUser
 from rest_framework.authentication import TokenAuthentication
 from rest_framework.parsers import MultiPartParser, FormParser, JSONParser
+from rest_framework.decorators import action
+from rest_framework.response import Response
 
 from .models import Blog, BlogContent, BlogSeo
 from .serializers_admin import (
@@ -61,6 +63,27 @@ class AdminBlogContentViewSet(ModelViewSet):
             
         return queryset.order_by('order', 'created_at')
 
+    @action(detail=False, methods=['post'])
+    def reorder(self, request):
+        """
+        Reorders content blocks in bulk.
+        Format: {"content_ids": [id1, id2, ...]}
+        """
+        content_ids = request.data.get('content_ids', [])
+        if not content_ids:
+            return Response({'error': 'content_ids list is required'}, status=400)
+
+        from django.db import transaction
+        with transaction.atomic():
+            # First pass: temporary shift to prevent unique constraint conflicts
+            for idx, c_id in enumerate(content_ids):
+                BlogContent.objects.filter(id=c_id).update(order=idx + 10000)
+            # Second pass: set the correct final order values
+            for idx, c_id in enumerate(content_ids):
+                BlogContent.objects.filter(id=c_id).update(order=idx + 1)
+
+        return Response({'status': 'success'})
+
 class AdminBlogSeoViewSet(ModelViewSet):
     """
     Admin CRUD ViewSet for managing SEO meta tags for a specific blog.