Allow to translate error messages

src/base/bittorrent/session.cpp

@@ -4220,8 +4220,8 @@ void Session::startUpTorrents()
             }
 
             if (numOfRemappedFiles > 0) {
-                LogMsg(QString(tr("Queue positions were corrected in %1 resume files"))
+                LogMsg(tr("Queue positions were corrected in %1 resume files").arg(numOfRemappedFiles)
-                    .arg(numOfRemappedFiles), Log::CRITICAL);
+                    , Log::CRITICAL);
             }
 
             // starting up downloading torrents (queue position > 0)

src/base/rss/rss_session.cpp

@@ -296,7 +296,7 @@ void Session::loadFolder(const QJsonObject &jsonObj, Folder *folder)
             const QJsonObject valObj {val.toObject()};
             if (valObj.contains("url")) {
                 if (!valObj["url"].isString()) {
-                    LogMsg(QString("Couldn't load RSS Feed '%1'. URL is required.")
+                    LogMsg(tr("Couldn't load RSS Feed '%1'. URL is required.")
                            .arg(QString("%1\\%2").arg(folder->path(), key)), Log::WARNING);
                     continue;
                 }
@@ -305,13 +305,13 @@ void Session::loadFolder(const QJsonObject &jsonObj, Folder *folder)
                 if (valObj.contains("uid")) {
                     uid = QUuid {valObj["uid"].toString()};
                     if (uid.isNull()) {
-                        LogMsg(QString("Couldn't load RSS Feed '%1'. UID is invalid.")
+                        LogMsg(tr("Couldn't load RSS Feed '%1'. UID is invalid.")
                                .arg(QString("%1\\%2").arg(folder->path(), key)), Log::WARNING);
                         continue;
                     }
 
                     if (m_feedsByUID.contains(uid)) {
-                        LogMsg(QString("Duplicate RSS Feed UID: %1. Configuration seems to be corrupted.")
+                        LogMsg(tr("Duplicate RSS Feed UID: %1. Configuration seems to be corrupted.")
                                .arg(uid.toString()), Log::WARNING);
                         continue;
                     }
@@ -329,7 +329,7 @@ void Session::loadFolder(const QJsonObject &jsonObj, Folder *folder)
             }
         }
         else {
-            LogMsg(QString("Couldn't load RSS Item '%1'. Invalid data format.")
+            LogMsg(tr("Couldn't load RSS Item '%1'. Invalid data format.")
                    .arg(QString("%1\\%2").arg(folder->path(), key)), Log::WARNING);
         }
     }

src/webui/api/apierror.h

@@ -42,7 +42,7 @@ enum class APIErrorType
 class APIError : public RuntimeError
 {
 public:
-    explicit APIError(APIErrorType type, const QString &message = "");
+    explicit APIError(APIErrorType type, const QString &message = {});
 
     APIErrorType type() const;
 

src/webui/api/searchcontroller.cpp

@@ -66,7 +66,7 @@ void SearchController::startAction()
     requireParams({"pattern", "category", "plugins"});
 
     if (!Utils::ForeignApps::pythonInfo().isValid())
-        throw APIError(APIErrorType::Conflict, "Python must be installed to use the Search Engine.");
+        throw APIError(APIErrorType::Conflict, tr("Python must be installed to use the Search Engine."));
 
     const QString pattern = params()["pattern"].trimmed();
     const QString category = params()["category"].trimmed();
@@ -89,7 +89,7 @@ void SearchController::startAction()
     ISession *const session = sessionManager()->session();
     auto activeSearches = session->getData<QSet<int>>(ACTIVE_SEARCHES);
     if (activeSearches.size() >= MAX_CONCURRENT_SEARCHES)
-        throw APIError(APIErrorType::Conflict, QString("Unable to create more than %1 concurrent searches.").arg(MAX_CONCURRENT_SEARCHES));
+        throw APIError(APIErrorType::Conflict, tr("Unable to create more than %1 concurrent searches.").arg(MAX_CONCURRENT_SEARCHES));
 
     const auto id = generateSearchId();
     const SearchHandlerPtr searchHandler {SearchPluginManager::instance()->startSearch(pattern, category, pluginsToUse)};