Fixed bug with left over messages.

resources/text/CHANGELOG

@@ -17,6 +17,7 @@ Changed:
 
 Fixed:
 
+▪ Left over messages are now correctly deleted after sync-in is performed in TT-RSS account.
 ▪ Made some rather big changes to sorting/filtering of feeds, which is now dynamic.
 ▪ Feeds are now (re)sorted when batch update finishes. (bug #150)
 ▪ Expand status if items in feed list are now persistent when performing sync-in of TT-RSS accounts. (bug #149)

src/services/tt-rss/ttrssserviceroot.cpp

@@ -587,6 +587,10 @@ void TtRssServiceRoot::syncIn() {
     // set primary IDs of the items.
     storeNewFeedTree(new_tree);
 
+    // We have new feed, some feeds were maybe removed,
+    // so remove left over messages.
+    removeLeftOverMessages();
+
     foreach (RootItem *top_level_item, new_tree->childItems()) {
       top_level_item->setParent(NULL);
       requestItemReassignment(top_level_item, this);
@@ -669,6 +673,20 @@ void TtRssServiceRoot::removeOldFeedTree(bool including_messages) {
   }
 }
 
+void TtRssServiceRoot::removeLeftOverMessages() {
+  QSqlDatabase database = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
+  QSqlQuery query(database);
+  int account_id = accountId();
+
+  query.setForwardOnly(true);
+  query.prepare(QSL("DELETE FROM Messages WHERE account_id = :account_id AND feed NOT IN (SELECT custom_id FROM Feeds WHERE account_id = :account_id);"));
+  query.bindValue(QSL(":account_id"), account_id);
+
+  if (!query.exec()) {
+    qWarning("Removing of left over messages failed: '%s'.", qPrintable(query.lastError().text()));
+  }
+}
+
 void TtRssServiceRoot::cleanAllItems() {
   foreach (RootItem *top_level_item, childItems()) {
     if (top_level_item->kind() != RootItemKind::Bin) {

src/services/tt-rss/ttrssserviceroot.h

@@ -99,6 +99,7 @@ class TtRssServiceRoot : public ServiceRoot {
     QStringList textualFeedIds(const QList<Feed*> &feeds);
 
     void removeOldFeedTree(bool including_messages);
+    void removeLeftOverMessages();
     void cleanAllItems();
     void storeNewFeedTree(RootItem *root);
     void loadFromDatabase();