Start refactoring all sql queries into separate data interaction class.

src/core/feedsmodel.cpp

@@ -35,7 +35,6 @@
 
 #include <QThread>
 #include <QSqlError>
-#include <QSqlQuery>
 #include <QSqlRecord>
 #include <QPair>
 #include <QStack>

src/core/messagesmodel.cpp

@@ -24,6 +24,7 @@
 #include "miscellaneous/iconfactory.h"
 #include "gui/dialogs/formmain.h"
 #include "services/abstract/serviceroot.h"
+#include "miscellaneous/databasequeries.h"
 
 #include <QSqlRecord>
 #include <QSqlError>
@@ -258,18 +259,7 @@ bool MessagesModel::setMessageRead(int row_index, RootItem::ReadStatus read) {
     return false;
   }
 
-  QSqlQuery query_read_msg(database());
-  query_read_msg.setForwardOnly(true);
-
-  if (!query_read_msg.prepare(QSL("UPDATE Messages SET is_read = :read WHERE id = :id;"))) {
-    qWarning("Query preparation failed for message read change.");
-    return false;
-  }
-
-  query_read_msg.bindValue(QSL(":id"), message.m_id);
-  query_read_msg.bindValue(QSL(":read"), (int) read);
-
-  if (query_read_msg.exec()) {
+  if (DatabaseQueries::markMessageReadUnread(database(), message.m_id, read)) {
     return m_selectedItem->getParentServiceRoot()->onAfterSetMessagesRead(m_selectedItem, QList<Message>() << message, read);
   }
   else {

src/miscellaneous/databasequeries.cpp

@@ -0,0 +1,39 @@
+// This file is part of RSS Guard.
+//
+// Copyright (C) 2011-2016 by Martin Rotter <rotter.martinos@gmail.com>
+//
+// RSS Guard is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// RSS Guard is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with RSS Guard. If not, see <http://www.gnu.org/licenses/>.
+
+#include "miscellaneous/databasequeries.h"
+
+#include <QVariant>
+
+
+bool DatabaseQueries::markMessageReadUnread(QSqlDatabase db, int id, RootItem::ReadStatus read) {
+  QSqlQuery query_read_msg(db);
+  query_read_msg.setForwardOnly(true);
+
+  if (!query_read_msg.prepare(QSL("UPDATE Messages SET is_read = :read WHERE id = :id;"))) {
+    qWarning("Query preparation failed for message read change.");
+    return false;
+  }
+
+  query_read_msg.bindValue(QSL(":id"), id);
+  query_read_msg.bindValue(QSL(":read"), (int) read);
+
+  return query_read_msg.exec();
+}
+
+DatabaseQueries::DatabaseQueries() {
+}

src/miscellaneous/databasequeries.h

@@ -0,0 +1,35 @@
+// This file is part of RSS Guard.
+//
+// Copyright (C) 2011-2016 by Martin Rotter <rotter.martinos@gmail.com>
+//
+// RSS Guard is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// RSS Guard is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with RSS Guard. If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef DATABASEQUERIES_H
+#define DATABASEQUERIES_H
+
+#include "services/abstract/rootitem.h"
+
+#include <QSqlQuery>
+
+
+class DatabaseQueries {
+  public:
+    static bool markMessageReadUnread(QSqlDatabase db, int id, RootItem::ReadStatus read);
+
+
+  private:
+    explicit DatabaseQueries();
+};
+
+#endif // DATABASEQUERIES_H

src/services/standard/standardfeed.cpp

@@ -383,7 +383,7 @@ bool StandardFeed::removeItself() {
 
   // Remove all messages from this standard feed.
   query_remove.prepare(QSL("DELETE FROM Messages WHERE feed = :feed;"));
-  query_remove.bindValue(QSL(":feed"), id());
+  query_remove.bindValue(QSL(":feed"), customId());
 
   if (!query_remove.exec()) {
     return false;

src/services/tt-rss/ttrssfeed.cpp

@@ -213,14 +213,13 @@ bool TtRssFeed::removeItself() {
     }
 
     // Remove feed itself.
-    query_remove.prepare(QSL("DELETE FROM Feeds WHERE custom_id = :feed;"));
-    query_remove.bindValue(QSL(":feed"), customId());
+    query_remove.prepare(QSL("DELETE FROM Feeds WHERE id = :feed;"));
+    query_remove.bindValue(QSL(":feed"), id());
 
     return query_remove.exec();
   }
   else {
     qWarning("TT-RSS: Unsubscribing from feed failed, received JSON: '%s'", qPrintable(response.toString()));
-
     return false;
   }
 }