Finish most of the Queue manipulations

src/datamanager.cpp

@@ -1,5 +1,5 @@
 /**
- * SPDX-FileCopyrightText: 2020 Tobias Fella <fella@posteo.de>
+ * SPDX-FileCopyrightText: 2021 Bart De Vries <bart@mogwai.be>
  *
  * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
  */
@@ -71,6 +71,13 @@ DataManager::DataManager()
         }
     }
     qDebug() << m_entrymap;
+
+    query.prepare(QStringLiteral("SELECT id FROM Queue ORDER BY listnr;"));
+    Database::instance().execute(query);
+    while (query.next()) {
+        m_queuemap += query.value(QStringLiteral("id")).toString();
+    }
+    qDebug() << m_queuemap;
 }
 
 Feed* DataManager::getFeed(int const index) const
@@ -221,18 +228,64 @@ int DataManager::queueCount() const
 
 void DataManager::addtoQueue(const QString &feedurl, const QString &id)
 {
-    // TODO: also add the entry to queue database table
+    // If item is already in queue, then stop here
+    if (m_queuemap.contains(id)) return;
+
+    // Add to internal queuemap data structure
     m_queuemap += id;
     qDebug() << m_queuemap;
-    Q_EMIT queueEntryAdded(m_queuemap.length()-1, id);
+
+    // Get index of this entry
+    const int index = m_queuemap.indexOf(id); // add new entry to end of queue
+
+    // Add to Queue database
+    QSqlQuery query;
+    query.prepare(QStringLiteral("INSERT INTO Queue VALUES (:index, :feedurl, :id);"));
+    query.bindValue(QStringLiteral(":index"), index);
+    query.bindValue(QStringLiteral(":feedurl"), feedurl);
+    query.bindValue(QStringLiteral(":id"), id);
+    Database::instance().execute(query);
+
+    // Make sure that the QueueModel is aware of the changes
+    Q_EMIT queueEntryAdded(index, id);
 }
 
 void DataManager::moveQueueItem(const int &from, const int &to)
 {
+    // First move the items in the internal data structure
     m_queuemap.move(from, to);
+
+    // Then make sure that the database Queue table reflects these changes
+    updateQueueListnrs();
+
+    // Make sure that the QueueModel is aware of the changes so it can update
     Q_EMIT queueEntryMoved(from, to);
 }
 
+void DataManager::removeQueueItem(const int &index)
+{
+    // First remove the item from the internal data structure
+    const QString id = m_queuemap[index];
+    m_queuemap.removeAt(index);
+    qDebug() << m_queuemap;
+
+    // Then make sure that the database Queue table reflects these changes
+    QSqlQuery query;
+    query.prepare(QStringLiteral("DELETE FROM Queue WHERE listnr=:listnr;"));
+    query.bindValue(QStringLiteral(":listnr"), index);
+    Database::instance().execute(query);
+    // ... and update all other listnrs in Queue table
+    updateQueueListnrs();
+
+    // Make sure that the QueueModel is aware of the change so it can update
+    Q_EMIT queueEntryRemoved(index, id);
+}
+
+void DataManager::removeQueueItem(const Entry* entry)
+{
+    removeQueueItem(m_queuemap.indexOf(entry->id()));
+}
+
 void DataManager::importFeeds(const QString &path)
 {
     QUrl url(path);
@@ -303,3 +356,14 @@ bool DataManager::feedExists(const QString &url)
 {
     return m_feeds.contains(url);
 }
+
+void DataManager::updateQueueListnrs() const
+{
+    QSqlQuery query;
+    for (int i=0; i<m_queuemap.count(); i++) {
+        query.prepare(QStringLiteral("UPDATE Queue SET listnr=:i WHERE id=:id;"));
+        query.bindValue(QStringLiteral(":i"), i);
+        query.bindValue(QStringLiteral(":id"), m_queuemap[i]);
+        Database::instance().execute(query);
+    }
+}

src/datamanager.h

@@ -37,11 +37,12 @@ public:
     //Q_INVOKABLE void removeEntry(const QString &url);
     //Q_INVOKABLE void removeEntry(const Feed* feed, const int &index);
 
-    // TODO: add getQueue, queueCount etc.
     Entry* getQueueEntry(int const &index) const;
     int queueCount() const;
     Q_INVOKABLE void addtoQueue(const QString &feedurl, const QString &id);
     Q_INVOKABLE void moveQueueItem(const int &from, const int &to);
+    Q_INVOKABLE void removeQueueItem(const int &index);
+    Q_INVOKABLE void removeQueueItem(const Entry* entry);
 
     Q_INVOKABLE void importFeeds(const QString &path);
     Q_INVOKABLE void exportFeeds(const QString &path);
@@ -52,8 +53,8 @@ Q_SIGNALS:
     void entryAdded(const QString &feedurl, const QString &id);
     //void entryRemoved(const Feed*, const int &index); // TODO: implement this signal
     void feedEntriesUpdated(const QString &url);
-    void queueEntryAdded(const int &index, const QString &id);  // TODO: implement
-    void queueEntryRemoved(const int &index, const QString &id);  // TODO: implement
+    void queueEntryAdded(const int &index, const QString &id);
+    void queueEntryRemoved(const int &index, const QString &id);
     void queueEntryMoved(const int &from, const int $to);
 
 private:
@@ -61,6 +62,7 @@ private:
     void loadFeed(QString feedurl) const;
     void loadEntry(QString id) const;
     bool feedExists(const QString &url);
+    void updateQueueListnrs() const;
 
     mutable QHash<QString, Feed*> m_feeds; // hash of pointers to all feeds in db, key = url (lazy loading)
     mutable QHash<QString, Entry*> m_entries; // hash of pointers to all entries in db, key = id (lazy loading)

src/enclosure.cpp

@@ -34,7 +34,7 @@ Enclosure::Enclosure(Entry *entry)
     m_type = query.value(QStringLiteral("type")).toString();
     m_url = query.value(QStringLiteral("url")).toString();
 
-    QFile file(Fetcher::instance().filePath(m_url));
+    QFile file(path());
     if(file.size() == m_size) {
         m_status = Downloaded;
     } else {
@@ -88,7 +88,7 @@ void Enclosure::download()
 
 void Enclosure::deleteFile()
 {
-    QFile(Fetcher::instance().filePath(m_url)).remove();
+    QFile(path()).remove();
     m_status = Downloadable;
     Q_EMIT statusChanged();
 }

src/qml/QueueDelegate.qml

@@ -92,6 +92,11 @@ Kirigami.SwipeListItem {
             icon.name: "delete"
             onTriggered: model.entry.enclosure.deleteFile()
             visible: model.entry.enclosure && model.entry.enclosure.status === Enclosure.Downloaded
+        },
+        Kirigami.Action {
+            text: i18n("Remove from Queue")
+            icon.name: "delete-table-row"
+            onTriggered: { DataManager.removeQueueItem(model.entry) }
         }
     ]
 }

src/queuemodel.cpp

@@ -25,10 +25,17 @@ QueueModel::QueueModel(QObject *parent)
         qDebug() << "Moved entry" << from << "to" << to;
     });
     connect(&DataManager::instance(), &DataManager::queueEntryAdded, this, [this](const int &pos, const QString &id) {
+        Q_UNUSED(id)
         beginInsertRows(QModelIndex(), pos, pos);
         endInsertRows();
         qDebug() << "Added entry at pos" << pos;
     });
+    connect(&DataManager::instance(), &DataManager::queueEntryRemoved, this, [this](const int &pos, const QString &id) {
+        Q_UNUSED(id)
+        beginRemoveRows(QModelIndex(), pos, pos);
+        endRemoveRows();
+        qDebug() << "Removed entry at pos" << pos;
+    });
 }
 
 QVariant QueueModel::data(const QModelIndex &index, int role) const

src/queuemodel.h

@@ -23,9 +23,4 @@ public:
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
     QHash<int, QByteArray> roleNames() const override;
     int rowCount(const QModelIndex &parent) const override;
-
-    //Q_INVOKABLE bool move(int from, int to);
-    //Q_INVOKABLE bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override;
-    //Q_INVOKABLE void addEntry(QString feedurl, QString id);
-
 };