From c7bac83056bd8ab1381ab47c1661d26ffbf795f7 Mon Sep 17 00:00:00 2001
From: Alain Mazy <alain@mazy.be>
Date: Wed, 16 Oct 2024 16:28:14 +0200
Subject: [PATCH] use tools/find to display most recent studies

---
 WebApplication/src/components/StudyList.vue |  7 ++++++
 WebApplication/src/orthancApi.js            | 26 +++++++++++++++++++++
 release-notes.md                            |  2 +-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/WebApplication/src/components/StudyList.vue b/WebApplication/src/components/StudyList.vue
index 9cc12bc..61cc0ea 100644
--- a/WebApplication/src/components/StudyList.vue
+++ b/WebApplication/src/components/StudyList.vue
@@ -648,7 +648,14 @@ export default {
                 await this.$store.dispatch('studies/clearStudies');
                 if (this.uiOptions.StudyListContentIfNoSearch == "empty") {
                     return;
+                } else if (this.uiOptions.StudyListContentIfNoSearch == "most-recents" && this['configuration/hasExtendedChanges']) {
+                    const studies = await api.getMostRecentStudies((this.filterLabels.length > 0 ? this.filterLabels[0] : null));
+                    for (const study of studies) {
+                        this.$store.dispatch('studies/addStudy', { studyId: study["ID"], study: study, reloadStats: false });
+                    }
                 } else if (this.uiOptions.StudyListContentIfNoSearch == "most-recents") {
+                    // legacy code
+
                     if (this.isLoadingLatestStudies) {
                         // if currently loading, stop it
                         this.shouldStopLoadingLatestStudies = true;
diff --git a/WebApplication/src/orthancApi.js b/WebApplication/src/orthancApi.js
index 8ef2cb0..4b068e2 100644
--- a/WebApplication/src/orthancApi.js
+++ b/WebApplication/src/orthancApi.js
@@ -95,6 +95,32 @@ export default {
                 signal: window.axiosFindStudiesAbortController.signal
             })).data;
     },
+    async getMostRecentStudies(label) {
+        await this.cancelFindStudies();
+        window.axiosFindStudiesAbortController = new AbortController();
+
+        let payload = {
+            "Level": "Study",
+            "Limit": store.state.configuration.uiOptions.MaxStudiesDisplayed,
+            "Query": {},
+            "RequestedTags": store.state.configuration.requestedTagsForStudyList,
+            "OrderBy" : [{
+                'Type': 'Metadata',
+                'Key': 'LastUpdate',
+                'Direction': 'DESC'
+            }],
+            "Expand": true
+        };
+        if (label) {
+            payload["Labels"] = [label];
+            payload["LabelsConstraint"] = "All";
+        }
+
+        return (await axios.post(orthancApiUrl + "tools/find", payload, 
+            {
+                signal: window.axiosFindStudiesAbortController.signal
+            })).data;
+    },
     async getLastChangeId() {
         const response = (await axios.get(orthancApiUrl + "changes?last"));
         return response.data["Last"];
diff --git a/release-notes.md b/release-notes.md
index bf612aa..eff127d 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,7 @@ Pending changes in the mainline
 ===============================
 
 Changes:
-  - Optimized loading of "most-recent" studies when the Orthanc DB supports "ExtendedChanges"
+  - Optimized loading of "most-recent" studies when the Orthanc DB supports "ExtendedFind"
   - Disable UI components on ReadOnly systems.
   - new configuration "EnableLabelsCount" to enable/disable the display of the number of
     studies with each label.