feat: added min year to newsletter response

student_welfare_backend/student_welfare_backend/core/api/views/newsletters.py

@@ -15,7 +15,7 @@
 
 from student_welfare_backend.core.models import Newsletter
 from student_welfare_backend.core.api.serializers import NewsletterSerializer
-from student_welfare_backend.customs.pagination import CustomPagination
+from student_welfare_backend.customs.pagination import CustomPagination,NewsletterPagination
 from student_welfare_backend.customs.permissions import IsDSW, IsADSW
 from student_welfare_backend.customs.views import BaseBulkUploadView, BaseBulkDownloadView
 
@@ -25,7 +25,7 @@ class NewsletterViewSet(ReadOnlyModelViewSet):
     permission_classes = []
     queryset = Newsletter.objects.all()
     serializer_class = NewsletterSerializer
-    pagination_class = CustomPagination
+    pagination_class = NewsletterPagination
     filter_backends = [filters.SearchFilter, filters.OrderingFilter, DjangoFilterBackend]
     filterset_fields = ["year", "month"]
     search_fields = ["year", "month"]
@@ -38,7 +38,6 @@ def get_month_index(self, month_name):
 
     def get_queryset(self):
         queryset = super().get_queryset()
-
         # Custom sorting logic: Convert month names to numeric values
         queryset = queryset.annotate(
             month_index=Case(
@@ -49,8 +48,7 @@ def get_queryset(self):
 
         # Order queryset by year (descending) and month_index (descending)
         queryset = queryset.order_by('-year', '-month_index')
-
-        return queryset
+        return (queryset)
 
 
 class NewsletterAdminViewSet(ModelViewSet):

student_welfare_backend/student_welfare_backend/customs/pagination.py

@@ -1,7 +1,25 @@
 from rest_framework.pagination import PageNumberPagination
-
+from rest_framework.response import Response
+from student_welfare_backend.core.models import Newsletter
+from django.db.models import Min
 
 class CustomPagination(PageNumberPagination):
     page_size = 10
     page_size_query_param = "size"
     max_page_size = 1000
+
+class NewsletterPagination(PageNumberPagination):
+    page_size = 10
+    page_size_query_param = "size"
+    max_page_size = 1000
+
+    def get_paginated_response(self, data):
+        min_year = Newsletter.objects.aggregate(Min('year')).get('year__min')
+        response = super().get_paginated_response(data)
+        return Response({
+            'min_year': min_year,
+            'count': self.page.paginator.count,
+            'next': self.get_next_link(),
+            'previous': self.get_previous_link(),
+            'results': data
+        })