From e4ee0f19fdba922c3b0b64f311d0a6dfe7ab94c6 Mon Sep 17 00:00:00 2001
From: Bart De Vries <bart@mogwai.be>
Date: Fri, 1 Oct 2021 15:46:17 +0200
Subject: [PATCH] Do not create feed object if it's not in the database

Also clear errors related to a feed that's being removed from the database.
---
 src/datamanager.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/datamanager.cpp b/src/datamanager.cpp
index 8257e2f1..0ec5ac71 100644
--- a/src/datamanager.cpp
+++ b/src/datamanager.cpp
@@ -237,8 +237,13 @@ void DataManager::removeFeed(const int index)
     // Then delete everything from the database
     qCDebug(kastsDataManager) << "delete database part of" << feedurl;
 
-    // Delete Authors
+    // Delete related Errors
     QSqlQuery query;
+    query.prepare(QStringLiteral("DELETE FROM Errors WHERE url=:url;"));
+    query.bindValue(QStringLiteral(":url"), feedurl);
+    Database::instance().execute(query);
+
+    // Delete Authors
     query.prepare(QStringLiteral("DELETE FROM Authors WHERE feed=:feed;"));
     query.bindValue(QStringLiteral(":feed"), feedurl);
     Database::instance().execute(query);
@@ -502,7 +507,15 @@ void DataManager::exportFeeds(const QString &path)
 
 void DataManager::loadFeed(const QString feedurl) const
 {
-    m_feeds[feedurl] = new Feed(feedurl);
+    QSqlQuery query;
+    query.prepare(QStringLiteral("SELECT url FROM Feeds WHERE url=:feedurl;"));
+    query.bindValue(QStringLiteral(":feedurl"), feedurl);
+    Database::instance().execute(query);
+    if (!query.next()) {
+        qWarning() << "Failed to load feed" << feedurl;
+    } else {
+        m_feeds[feedurl] = new Feed(feedurl);
+    }
 }
 
 void DataManager::loadEntry(const QString id) const