option to purge individual feeds

src/librssguard/core/feedsmodel.cpp

@@ -529,6 +529,26 @@ bool FeedsModel::markItemCleared(RootItem* item, bool clean_read_only) {
   return true;
 }
 
+bool FeedsModel::purgeArticles(const QList<Feed*>& feeds) {
+  auto database = qApp->database()->driver()->connection(metaObject()->className());
+
+  try {
+    bool anything_purged = DatabaseQueries::purgeFeedArticles(database, feeds);
+
+    if (anything_purged) {
+      reloadCountsOfWholeModel();
+      emit reloadMessageListRequested(false);
+      return true;
+    }
+  }
+  catch (const ApplicationException& ex) {
+    qCriticalNN << LOGSEC_CORE
+                << "Purging of articles from feeds failed with error:" << QUOTE_W_SPACE_DOT(ex.message());
+  }
+
+  return false;
+}
+
 QVariant FeedsModel::data(const QModelIndex& index, int role) const {
   switch (role) {
     case Qt::ItemDataRole::FontRole: {

src/librssguard/core/feedsmodel.h

@@ -111,6 +111,7 @@ class RSSGUARD_DLLSPEC FeedsModel : public QAbstractItemModel {
     // Feeds operations.
     bool markItemRead(RootItem* item, RootItem::ReadStatus read);
     bool markItemCleared(RootItem* item, bool clean_read_only);
+    bool purgeArticles(const QList<Feed *> &feeds);
 
     // Signals that properties (probably counts)
     // of ALL items have changed.

src/librssguard/database/databasequeries.cpp

@@ -634,18 +634,27 @@ bool DatabaseQueries::removeUnwantedArticlesFromFeed(const QSqlDatabase& db,
   return rows_deleted > 0;
 }
 
-bool DatabaseQueries::purgeFeedMessages(const QSqlDatabase& database, const Feed* feed) {
+bool DatabaseQueries::purgeFeedArticles(const QSqlDatabase& database, const QList<Feed*>& feeds) {
   QSqlQuery q(database);
 
-  q.setForwardOnly(true);
+  auto feed_clauses = boolinq::from(feeds)
-  q.prepare(QSL("DELETE FROM Messages "
+                        .select([](Feed* feed) {
-                "WHERE "
+                          return QSL("("
-                "  Messages.account_id = :account_id AND "
+                                     "Messages.feed = '%1' AND "
-                "  Messages.feed = :feed AND "
+                                     "Messages.account_id = %2 AND "
-                "  Messages.is_important = 0"));
+                                     "Messages.is_important = 0"
+                                     ")")
+                            .arg(feed->customId(), QString::number(feed->getParentServiceRoot()->accountId()));
+                        })
+                        .toStdList();
 
-  q.bindValue(QSL(":feed"), feed->customId());
+  qDebugNN << feed_clauses;
-  q.bindValue(QSL(":account_id"), feed->getParentServiceRoot()->accountId());
+
+  QStringList feed_str_clauses = FROM_STD_LIST(QStringList, feed_clauses);
+  QString feed_clause = feed_str_clauses.join(QSL(" OR "));
+
+  q.setForwardOnly(true);
+  q.prepare(QSL("DELETE FROM Messages WHERE %1;").arg(feed_clause));
 
   if (!q.exec()) {
     throw ApplicationException(q.lastError().text());

src/librssguard/database/databasequeries.h

@@ -76,7 +76,7 @@ class RSSGUARD_DLLSPEC DatabaseQueries {
                                                const Feed::ArticleIgnoreLimit& feed_setup,
                                                const Feed::ArticleIgnoreLimit& app_setup);
 
-    static bool purgeFeedMessages(const QSqlDatabase& database, const Feed* feed);
+    static bool purgeFeedArticles(const QSqlDatabase& database, const QList<Feed*>& feeds);
     static bool purgeMessage(const QSqlDatabase& db, int message_id);
     static bool purgeImportantMessages(const QSqlDatabase& db);
     static bool purgeReadMessages(const QSqlDatabase& db);

src/librssguard/gui/dialogs/formmain.cpp

@@ -500,7 +500,7 @@ void FormMain::updateFeedButtonsAvailability() {
   m_ui->m_actionBackupDatabaseSettings->setEnabled(!critical_action_running);
   m_ui->m_actionCleanupDatabase->setEnabled(!critical_action_running);
   m_ui->m_actionClearSelectedItems->setEnabled(anything_selected);
-  m_ui->m_actionPurgeSelectedItems->setEnabled(feed_selected);
+  m_ui->m_actionPurgeSelectedItems->setEnabled(feed_selected || category_selected || service_selected);
   m_ui->m_actionDeleteSelectedItem->setEnabled(!critical_action_running && anything_selected);
   m_ui->m_actionEditSelectedItem->setEnabled(!critical_action_running && anything_selected);
   m_ui->m_actionEditChildFeeds->setEnabled(!critical_action_running && (service_selected || category_selected));

src/librssguard/gui/feedsview.cpp

@@ -266,9 +266,7 @@ void FeedsView::purgeSelectedFeeds() {
     return;
   }
 
-  for (auto* it : selectedFeeds(true)) {
+  m_sourceModel->purgeArticles(selectedFeeds(true));
-    it->purgeArticles();
-  }
 }
 
 void FeedsView::clearAllItems() {
@@ -989,6 +987,7 @@ QMenu* FeedsView::initializeContextMenuFeeds(RootItem* clicked_item) {
                                                    << qApp->mainForm()->m_ui->m_actionCopyUrlSelectedFeed
                                                    << qApp->mainForm()->m_ui->m_actionMarkSelectedItemsAsRead
                                                    << qApp->mainForm()->m_ui->m_actionMarkSelectedItemsAsUnread
+                                                   << qApp->mainForm()->m_ui->m_actionPurgeSelectedItems
                                                    << qApp->mainForm()->m_ui->m_actionDeleteSelectedItem);
 
   auto cat_add = clicked_item->getParentServiceRoot()->supportsCategoryAdding();

src/librssguard/services/abstract/feed.cpp

@@ -113,24 +113,6 @@ QVariant Feed::data(int column, int role) const {
   }
 }
 
-void Feed::purgeArticles() {
-  auto database = qApp->database()->driver()->connection(metaObject()->className());
-
-  try {
-    bool anything_purged = DatabaseQueries::purgeFeedMessages(database, this);
-
-    if (anything_purged) {
-      getParentServiceRoot()->updateCounts(true);
-      getParentServiceRoot()->itemChanged(getParentServiceRoot()->getSubTree());
-      getParentServiceRoot()->requestReloadMessageList(false);
-    }
-  }
-  catch (const ApplicationException& ex) {
-    qCriticalNN << LOGSEC_CORE << "Purging of articles from feed" << QUOTE_W_SPACE(customId())
-                << "failed with error:" << QUOTE_W_SPACE_DOT(ex.message());
-  }
-}
-
 int Feed::autoUpdateInterval() const {
   return m_autoUpdateInterval;
 }

src/librssguard/services/abstract/feed.h

@@ -71,8 +71,6 @@ class RSSGUARD_DLLSPEC Feed : public RootItem {
     virtual bool isFetching() const;
     virtual QVariant data(int column, int role) const;
 
-    void purgeArticles();
-
     void setCountOfAllMessages(int count_all_messages);
     void setCountOfUnreadMessages(int count_unread_messages);