Implement on-demand pagination with "paginate" query param on each en…

…dpoint (default is still no pagination)

code.json

@@ -3,7 +3,7 @@
     "name": "liliservices",
     "organization": "U.S. Geological Survey",
     "description": "Web services for LILI (LIDE (Laboratory for Infectious Disease and the Environment) Information Management System)",
-    "version": "v1.1.1",
+    "version": "v1.2.0",
     "status": "Production",
 
     "permissions": {
@@ -47,7 +47,7 @@
     },
 
     "date": {
-      "metadataLastUpdated": "2020-02-18"
+      "metadataLastUpdated": "2020-023-11"
     }
   }
 ]

liliapi/views.py

@@ -9,6 +9,7 @@
 from liliapi.serializers import *
 from liliapi.models import *
 from liliapi.permissions import *
+from liliapi.paginations import *
 from liliapi.authentication import *
 from liliapi.tasks import *
 
@@ -46,13 +47,19 @@ class HistoryViewSet(viewsets.ModelViewSet):
     """
 
     permission_classes = (permissions.IsAuthenticated,)
+    pagination_class = StandardResultsSetPagination
 
     def perform_create(self, serializer):
         serializer.save(created_by=self.request.user, modified_by=self.request.user)
 
     def perform_update(self, serializer):
         serializer.save(modified_by=self.request.user)
 
+    # override the default pagination to allow disabling of pagination
+    def paginate_queryset(self, *args, **kwargs):
+        if self.request and 'paginate' in self.request.query_params:
+            return super().paginate_queryset(*args, **kwargs)
+        return None
 
 ######
 #