--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Sphinx/source/plugins/python/paging.py	Fri Jun 11 10:24:08 2021 +0200
@@ -0,0 +1,38 @@
+import json
+import orthanc
+
+def GetStudyDate(study):
+    if 'StudyDate' in study['MainDicomTags']:
+        return study['MainDicomTags']['StudyDate']
+    else:
+        return ''
+
+def SortStudiesByDate(output, uri, **request):
+    if request['method'] == 'GET':
+        # Retrieve all the studies
+        studies = json.loads(orthanc.RestApiGet('/studies?expand'))
+
+        # Sort the studies according to the "StudyDate" DICOM tag
+        studies = sorted(studies, key = GetStudyDate)
+
+        # Read the limit/offset arguments provided by the user
+        offset = 0
+        if 'offset' in request['get']:
+            offset = int(request['get']['offset'])
+
+        limit = 0
+        if 'limit' in request['get']:
+            limit = int(request['get']['limit'])
+
+        # Truncate the list of studies
+        if limit == 0:
+            studies = studies[offset : ]
+        else:
+            studies = studies[offset : offset + limit]
+
+        # Return the truncated list of studies
+        output.AnswerBuffer(json.dumps(studies), 'application/json')
+    else:
+        output.SendMethodNotAllowed('GET')
+
+orthanc.RegisterRestCallback('/sort-studies', SortStudiesByDate)