QSqlTableModel: unable to find table when calling submitAll method - c++

Question

I want to insert data into an SQLite database using QSqlDatabase and QSqlTableModel.
The database is being created in an SqlDatabaseController class:
SqlDatabaseController.h
// ...
class SqlDatabaseController : public QObject
{
Q_OBJECT
// ...
private:
QSqlDatabase _database;
SqlContactModel* _contactModel { nullptr };
// ...
SqlDatabaseController.cpp
SqlDatabaseController::SqlDatabaseController(QObject *parent) : QObject(parent)
{
// create database driver
_database = QSqlDatabase::database();
_contactModel = new SqlContactModel(this, _database);
}
// ...
void SqlDatabaseController::connectToDatabase(const QString &name, const QString &pwd)
if (!_database.isValid()) {
_database = QSqlDatabase::addDatabase("QSQLITE");
if (!_database.isValid()) {
qFatal("[SQL] SqlDatabaseController: Cannot add database: %s", qPrintable(_database.lastError().text()));
}
}
const QDir writeDir { QStandardPaths::writableLocation(QStandardPaths::AppDataLocation).append("/").append(name) };
if (!writeDir.exists() && !writeDir.mkpath(".")) {
qFatal("[SQL] SqlDatabaseController: Failed to create writable directory at %s", qPrintable(writeDir.absolutePath()));
}
// Ensure that we have a writable location on all devices.
const QString fileName { writeDir.absolutePath() + "/db.sqlite3" };
// When using the SQLite driver, open() will create the SQLite database if it doesn't exist.
_database.setDatabaseName(fileName);
if (!_database.open()) {
qFatal("[SQL] SqlDatabaseController: Cannot open database: %s", qPrintable(_database.lastError().text()));
QFile::remove(fileName);
return;
}
emit databaseConnected();
}
For model data storing, I'm subclassing QSqlTableModel:
SqlContactModel.cpp
SqlContactModel::SqlContactModel(QObject* parent, QSqlDatabase db) :
QSqlTableModel(parent, db),
_tableName("Contacts")
{
}
As you can see, I'm passing the database to the TableModel so it's able to use this database for all queries.
Afterwards, I'm creating the tables:
SqlContactModel.cpp
void SqlContactModel::create()
{
createTable();
setTable(_tableName);
setSort(2, Qt::DescendingOrder);
// Ensures that the model is sorted correctly after submitting a new row.
setEditStrategy(QSqlTableModel::OnManualSubmit);
}
// ...
void SqlContactModel::createTable()
{
qDebug() << "[SQL] Creating table" << _tableName << "for database" << QSqlDatabase::database().databaseName() << ".";
if (QSqlDatabase::database().tables().contains(_tableName)) {
qDebug() << "[SQL] Database table" << _tableName << "already exists. Exiting createTable().";
emit contactTableCreated();
return;
}
QSqlQuery query { "SOME_QUERY" };
if (!query.exec()) {
qFatal("[SQL] SqlContactModel: Failed to create table: %s", qPrintable(query.lastError().text()));
return;
}
if (!submitAll()) {
qFatal("[SQL] SqlContactModel: Failed to submit createTable query: %s", qPrintable(lastError().text()));
}
emit contactTableCreated();
qDebug() << "Done creating table" << _tableName << ".";
}
Now, I want to insert something into my table like this:
SqlContactModel.cpp
// ...
void SqlContactModel::addContact(const QString& contactName, const QString& id, const QByteArray& avatar)
{
QSqlQuery query;
query.prepare("INSERT OR REPLACE INTO '" +
_tableName +
"'(id, name" +
(avatar.isEmpty() ? "" : ", avatar") +
") VALUES (:Id, :Name" + (avatar.isEmpty() ? "" : ", :Avatar") +
")");
query.bindValue(":Id", id);
query.bindValue(":Name", contactName);
if (!avatar.isEmpty()) {
query.bindValue(":Avatar", avatar);
}
if (!query.exec()) {
qFatal("[SQL] SqlContactModel: Unable to execute query in addContact: %s", qPrintable(query.lastError().text()));
return;
}
for (auto const& table : QSqlDatabase::database().tables()) {
qDebug() << "Table: " << table;
}
if (!submitAll()) { // <-- here's where it breaks
qFatal("[SQL] SqlContactModel: Failed to submit addContact query: %s", qPrintable(lastError().text()));
return;
}
qDebug() << "[SQL] Added contact " << contactName << "(" << id << ") to table " << _tableName << ".";
// emit contactListChanged();
}
The query executes just fine and the data is being stored in the database, however since I'm using setEditStrategy(QSqlTableModel::OnManualSubmit); on my model, I would need to call submitAll() on my model to be updated properly. When calling submitAll(), however, I keep getting an error:
[SQL] SqlContactModel: Failed to submit addContact query: Unable to find table Contacts.
As you can see in the code above, I iterated through all tables of the database and I get the following output:
Table: "Contacts"
Table: "Conversations"
which is why I'm quite sure the table does exist.
Is this some kind of encoding error or why is submitAll() not able to find my table Contacts in the database? What am I missing here?
Thanks in advance.