Remove nodes

Implement remove nodes for ArchiveView. Only empty nodes without
children can be removed. Everything else is too dangerous :)

1 files changed, 43 insertions, 5 deletions

diff --git a/archivemodel.cpp b/archivemodel.cpp
index 21ee015..9ef2eac 100644
--- a/archivemodel.cpp
+++ b/archivemodel.cpp
@@ -94,11 +94,42 @@ bool ArchiveModel::setData(const QModelIndex &idx, const QVariant &value, int ro
             return true;
         }
     }else{
-        QSqlError e = updateQuery.lastError();
-        QString databaseText = e.databaseText().isEmpty() ? tr("(none)") : e.databaseText();
-        QString driverText = e.driverText().isEmpty() ? tr("(none)") : e.driverText();
-        QString errormsg = QString(tr("<b>Database error:</b><br/><ul><li>driverText(): %1</li><li>databaseText(): %2</li></ul>")).arg(driverText).arg(databaseText);
-        emit databaseError(errormsg);
+        emitDatabaseError(updateQuery.lastError());
+    }
+    return false;
+}
+
+bool ArchiveModel::removeNode(const QModelIndex &idx){
+    if(!idx.isValid()){
+        return false;
+    }
+    SmTreeItem *item = itemAt(idx);
+    if(item->childCount()){
+        return false;
+    }
+    int nodeType = item->data(Type).toInt();
+    QSqlQuery removeQuery(mDb);
+    if(nodeType == GenreNode){
+        removeQuery.prepare("DELETE FROM genres WHERE igenres_id = :id");
+    }else if(nodeType == ActorNode){
+        removeQuery.prepare("DELETE FROM actors WHERE iactors_id = :id");
+    }else if(nodeType == SeriesNode){
+        removeQuery.prepare("DELETE FROM series WHERE iseries_id = :id");
+    }else{
+        return false;
+    }
+    QVariant id = item->data(GenericId);
+    removeQuery.bindValue(":id", id);
+    if(removeQuery.exec()){
+        if(nodeType == GenreNode || nodeType == ActorNode){
+            removeRows(idx.row(), 1, idx.parent());
+            return true;
+        }else if(nodeType == SeriesNode){
+            emit needRefresh();
+            return true;
+        }
+    }else{
+        emitDatabaseError(removeQuery.lastError());
     }
     return false;
 }
@@ -151,6 +182,13 @@ void ArchiveModel::collectorFinished(){
     setRoot(item);
 }
 
+void ArchiveModel::emitDatabaseError(const QSqlError &e){
+    QString databaseText = e.databaseText().isEmpty() ? tr("(none)") : e.databaseText();
+    QString driverText = e.driverText().isEmpty() ? tr("(none)") : e.driverText();
+    QString errormsg = QString(tr("<b>Database error:</b><br/><ul><li>driverText(): %1</li><li>databaseText(): %2</li></ul>")).arg(driverText).arg(databaseText);
+    emit databaseError(errormsg);
+}
+
 ArchiveCollector::ArchiveCollector(int numFields, QObject *parent) : QThread(parent), mNumFields(numFields) {
     mDb = QSqlDatabase::cloneDatabase(QSqlDatabase::database("treedb"), "archivedb");
     mDb.open();