# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1680942363 -7200
# Node ID 82921a29349a2b4b06857f51643fe6e9dc35098e
# Parent  a8774581adfc2fd0d995e76b58e98e55d3692024
implemented IDatabaseBackend::ListAllLabels()

diff -r a8774581adfc -r 82921a29349a Framework/Plugins/DatabaseBackendAdapterV4.cpp
--- a/Framework/Plugins/DatabaseBackendAdapterV4.cpp	Fri Apr 07 22:32:15 2023 +0200
+++ b/Framework/Plugins/DatabaseBackendAdapterV4.cpp	Sat Apr 08 10:26:03 2023 +0200
@@ -1196,7 +1196,15 @@
       case Orthanc::DatabasePluginMessages::OPERATION_LIST_LABELS:
       {
         std::list<std::string>  labels;
-        backend.ListLabels(labels, manager, request.list_labels().id());
+
+        if (request.list_labels().single_resource())
+        {
+          backend.ListLabels(labels, manager, request.list_labels().id());
+        }
+        else
+        {
+          backend.ListAllLabels(labels, manager);
+        }
 
         response.mutable_list_available_attachments()->mutable_attachments()->Reserve(labels.size());
         for (std::list<std::string>::const_iterator it = labels.begin(); it != labels.end(); ++it)
diff -r a8774581adfc -r 82921a29349a Framework/Plugins/IDatabaseBackend.h
--- a/Framework/Plugins/IDatabaseBackend.h	Fri Apr 07 22:32:15 2023 +0200
+++ b/Framework/Plugins/IDatabaseBackend.h	Sat Apr 08 10:26:03 2023 +0200
@@ -338,5 +338,9 @@
     virtual void ListLabels(std::list<std::string>& target,
                             DatabaseManager& manager,
                             int64_t resource) = 0;
+
+    // New in Orthanc 1.12.0
+    virtual void ListAllLabels(std::list<std::string>& target,
+                               DatabaseManager& manager) = 0;
   };
 }
diff -r a8774581adfc -r 82921a29349a Framework/Plugins/IndexBackend.cpp
--- a/Framework/Plugins/IndexBackend.cpp	Fri Apr 07 22:32:15 2023 +0200
+++ b/Framework/Plugins/IndexBackend.cpp	Sat Apr 08 10:26:03 2023 +0200
@@ -2688,6 +2688,18 @@
   }
   
 
+  void IndexBackend::ListAllLabels(std::list<std::string>& target,
+                                   DatabaseManager& manager)
+  {
+    DatabaseManager::CachedStatement statement(
+      STATEMENT_FROM_HERE, manager,
+      "SELECT DISTINCT label FROM Labels");
+      
+    Dictionary args;
+    ReadListOfStrings(target, statement, args);
+  }
+
+  
   void IndexBackend::Register(IndexBackend* backend,
                               size_t countConnections,
                               unsigned int maxDatabaseRetries)
diff -r a8774581adfc -r 82921a29349a Framework/Plugins/IndexBackend.h
--- a/Framework/Plugins/IndexBackend.h	Fri Apr 07 22:32:15 2023 +0200
+++ b/Framework/Plugins/IndexBackend.h	Sat Apr 08 10:26:03 2023 +0200
@@ -392,6 +392,9 @@
     virtual void ListLabels(std::list<std::string>& target,
                             DatabaseManager& manager,
                             int64_t resource) ORTHANC_OVERRIDE;
+
+    virtual void ListAllLabels(std::list<std::string>& target,
+                               DatabaseManager& manager) ORTHANC_OVERRIDE;
     
     /**
      * "maxDatabaseRetries" is to handle