assistant: Set error string when failing to openCollectionFile()

Task-number: QTBUG-72095
Change-Id: I13063afe493232db4c60c3dee686473a3f6e5804
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/assistant/help/qhelpcollectionhandler.cpp b/src/assistant/help/qhelpcollectionhandler.cpp
index b1a09d126..32ce01bf0 100644
--- a/src/assistant/help/qhelpcollectionhandler.cpp
+++ b/src/assistant/help/qhelpcollectionhandler.cpp
@@ -195,8 +195,10 @@ bool QHelpCollectionHandler::openCollectionFile()
     const FileInfoList &docList = registeredDocumentations();
     if (indexAndNamespaceFilterTablesMissing) {
         for (const QHelpCollectionHandler::FileInfo &info : docList) {
-            if (!registerIndexAndNamespaceFilterTables(info.namespaceName))
+            if (!registerIndexAndNamespaceFilterTables(info.namespaceName)) {
+                emit error(tr("Cannot register index tables in file %1.").arg(collectionFile()));
                 return false;
+            }
         }
         return true;
     }
@@ -224,8 +226,10 @@ bool QHelpCollectionHandler::openCollectionFile()
     // In this case we remove all records from tables.
     Transaction transaction(m_connectionName);
     for (const TimeStamp &timeStamp : toRemove) {
-        if (!unregisterIndexTable(timeStamp.namespaceId, timeStamp.folderId))
+        if (!unregisterIndexTable(timeStamp.namespaceId, timeStamp.folderId)) {
+            emit error(tr("Cannot unregister index tables in file %1.").arg(collectionFile()));
             return false;
+        }
     }
     transaction.commit();