mirror/yacreader
1
0
Fork 0
mirror of https://github.com/YACReader/yacreader synced 2025-07-18 04:54:29 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

updating folders' children info for every insert/delete in the db causes big performance issues, so that info is going to be updated explicitly

Browse Source
This commit is contained in:
Luis Ángel San Martín
2016-01-25 18:45:50 +01:00
parent 00f45b9a27
commit 88056c819f
10 changed files with 63 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
YACReaderLibrary/db/folder_model.cpp
View File

@ -172,11 +172,12 @@ QVariant FolderModel::data(const QModelIndex &index, int role) const
if(role == FolderModel::FinishedRole)
return item->data(FolderModel::Finished);
if(role == FolderModel::IdRole)
return item->id;
if (role != Qt::DisplayRole)
return QVariant();
return item->data(index.column());
}
//! [3]
@ -305,7 +306,7 @@ void FolderModel::setupModelData(QSqlQuery &sqlquery, FolderItem *parent)
//el diccionario permitir<69> encontrar cualquier nodo del <20>rbol r<>pidamente, de forma que a<>adir un hijo a un padre sea O(1)
items.clear();
//se a<>ade el nodo 0
items.insert(parent->id,parent);
items.insert(parent->id,parent);
while (sqlquery.next()) {
QList<QVariant> data;
@ -535,6 +536,7 @@ QModelIndex FolderModel::addFolderAtParent(const QString &folderName, const QMod
QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
newFolder.id = DBHelper::insert(&newFolder, db);
DBHelper::updateChildrenInfo(parentItem->id, db);
QSqlDatabase::removeDatabase(_databasePath);
int destRow = 0;
@ -573,11 +575,18 @@ void FolderModel::deleteFolder(const QModelIndex &mi)
QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
DBHelper::removeFromDB(&f,db);
DBHelper::updateChildrenInfo(item->parent()->id, db);
QSqlDatabase::removeDatabase(_databasePath);
endRemoveRows();
}
void FolderModel::updateFolderChildrenInfo(qulonglong folderId)
{
QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
DBHelper::updateChildrenInfo(folderId, db);
QSqlDatabase::removeDatabase(_databasePath);
}
//PROXY