Question

我正在使用QSqlTableModel *modelcompleter，然后使用QCompleter将数据加载到qLineEdit *search

    connect(ui->btnSearch, SIGNAL(clicked()), SLOT(search()));
    modelcompleter->setTable("cust");
    modelcompleter->setEditStrategy(QSqlTableModel::OnManualSubmit);
    modelcompleter->select();
    QCompleter *searchCompleter = new QCompleter(modelcompleter);
    searchCompleter->setCompletionColumn(1);
    searchCompleter->setCaseSensitivity(Qt::CaseInsensitive);
    ui->search->setCompleter(searchCompleter);

我正在使用qlineEdit来输入我想要选择的项目：

 connect(ui->search, SIGNAL(returnPressed()), SLOT(search()));

功能

void search(){
cust_name = ui->search->text();
    modelsearch->setTable("cust");
    modelsearch->setEditStrategy(QSqlTableModel::OnManualSubmit);
    modelsearch->setFilter(QString("cust_name like '%%1%'").arg(cust_name));
    modelsearch->select();
    qDebug() << modelsearch->record(0).value("id").toInt(); }

我不明白为什么，但是当我点击输入时，目前只设置为1记录的模型搜索（QCompleter确保我提交完整的＆＃39; cust_name＆＃39;）。 QDebug（）输出0.是否有另一种方法可以获得与搜索查询id匹配的'cust_name' 'cust_name'

Answer 1

qDebug() << modelsearch->record(0).value("id").toInt();

而不是这个。我用了

QSqlQueryModel *query = new QSqlQueryModel;
query->setQuery(QString("SELECT id from cust WHERE cust_name like '%%1%'").arg(cust_name));
qDebug() << query->record(0).value("id").toInt();

现在正在获取记录的ID！

获取id字段作为QSqlTableModel中记录的int

1 个答案: