drug_sensitivity_reaction/recordxijun.cpp

#include "recordxijun.h"
#include "ui_recordxijun.h"
#include <QFileDialog>
recordxijun::recordxijun(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::recordxijun)
{
    ui->setupUi(this);
    ui->tableView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    ui->tableView->setSelectionBehavior(QAbstractItemView::SelectItems);
    ui->tableView->setSelectionMode(QAbstractItemView::SingleSelection);
    ui->tableView->setAlternatingRowColors(true);

    model = new QSqlTableModel(this);
    model->setTable("xijun");//打开数据库中名为“”的表
    model->select();
    ui->tableView->setModel(model);
    ui->tableView->show();
    theSelection=new QItemSelectionModel(model);//关联选择模型
    //theSelection当前项变化时触发currentChanged信号
    connect(theSelection,SIGNAL(currentChanged(QModelIndex,QModelIndex)),
            this,SLOT(on_currentChanged(QModelIndex,QModelIndex)));



    ui->tableView->setSelectionModel(theSelection); //设置选择模型



    shuaxin();
    //创建界面组件与数据模型的字段之间的数据映射
    dataMapper= new QDataWidgetMapper();
    dataMapper->setModel(model);//设置数据模型
    dataMapper->setSubmitPolicy(QDataWidgetMapper::AutoSubmit);

    m_maxtu=new maxtu;
    connect(this, SIGNAL(yuan(QPixmap)),m_maxtu, SLOT(getyuan(QPixmap)));

    ui->pushButton->setFixedSize(150,50);
    ui->pushButton_2->setFixedSize(150,50);

    ui->pushButton_4->setFixedSize(150,50);
    ui->pushButton_5->setFixedSize(150,50);


    ui->lineEdit->setFixedSize(300,50);
    ui->lineEdit_2->setFixedSize(300,50);
}

recordxijun::~recordxijun()
{
    delete ui;
}
//刷新字段
void recordxijun::shuaxin()
{


    model->setHeaderData(0,Qt::Horizontal,"用户");
    model->setHeaderData(1,Qt::Horizontal,"时间");
    model->setHeaderData(3,Qt::Horizontal,"原始照片");
    model->setHeaderData(2,Qt::Horizontal,"结果照片");
    model->setHeaderData(4,Qt::Horizontal,"计数");
    for (int i=0;i<=model->rowCount() ;i++ ) {
        ui->tableView->setRowHeight(i,80);

    }

    for (int i=0;i<=model->columnCount() ;i++ ) {
        ui->tableView->setColumnWidth(i,350);

    }


}

void recordxijun::on_pushButton_clicked()
{
    QString number=ui->lineEdit_2->text();
    QSqlQuery query;
    QString str=QString("SELECT * FROM xijun WHERE time like '%%1%'").arg(number);
    qDebug() <<str;
    query.prepare(str);
    if (query.exec()) { // 确保查询执行成功
        QSqlQueryModel *model = new QSqlQueryModel;
        model->setQuery(query); // 先设置查询，这样模型就会包含查询结果
        ui->tableView->setModel(model);
        ui->tableView->show();

        model->setHeaderData(0,Qt::Horizontal,"用户");
        model->setHeaderData(1,Qt::Horizontal,"时间");
        model->setHeaderData(3,Qt::Horizontal,"原始照片");
        model->setHeaderData(2,Qt::Horizontal,"结果照片");
        model->setHeaderData(4,Qt::Horizontal,"计数");


    } else {

        qDebug() << "Query failed:" << query.lastError().text();
    }
}
//导出
void recordxijun::on_pushButton_2_clicked()
{
    QAbstractItemModel *model = ui->tableView->model();
    if (!model) {
        qDebug() << "No model set on the table view.";
        return;
    }
    QString filePath = QFileDialog::getSaveFileName(this, "Export to CSV", "", "CSV Files (*.csv)");
    qDebug()<<filePath;

    QFile file(filePath);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        qDebug() << "Could not open file for writing:" << file.errorString();
        return;
    }

    QTextStream out(&file);

    // 写入表头（可选）
    int columnCount = model->columnCount();
    for (int col = 0; col < columnCount; ++col) {
        out << model->headerData(col, Qt::Horizontal, Qt::DisplayRole).toString();
        if (col < columnCount - 1) {
            out << ",";
        }
    }
    out << "\n";

    // 写入数据行
    int rowCount = model->rowCount();
    for (int row = 0; row < rowCount; ++row) {
        for (int col = 0; col < columnCount; ++col) {
            QVariant data = model->data(model->index(row, col), Qt::DisplayRole);
            out << data.toString().replace(",", ";"); // 替换逗号以避免CSV格式问题
            if (col < columnCount - 1) {
                out << ",";
            }
        }
        out << "\n";
    }

    file.close();
    qDebug() << "Data exported to CSV successfully.";
}
//刷新
void recordxijun::on_pushButton_4_clicked()
{
    model->setTable("xijun");//打开数据库中名为“”的表
    model->select();
    ui->tableView->setModel(model);
    ui->tableView->show();
    shuaxin();

}

void recordxijun::on_currentChanged(const QModelIndex &current, const QModelIndex &previous)
{
    Q_UNUSED(previous);
    dataMapper->setCurrentIndex(current.row()); //更细数据映射的行号
    int curRecNo=current.row();//获取行号
    QSqlRecord  curRec=model->record(curRecNo); //获取当前记录
    if(current.column()==2){

        QByteArray data=curRec.value("yuanshi").toByteArray();
        QPixmap pic;
        pic.loadFromData(data);
        emit yuan(pic);
        m_maxtu->setWindowModality(Qt::ApplicationModal);
        m_maxtu->show();
    }
    if(current.column()==3){
        QByteArray data2=curRec.value("jieguo").toByteArray();
        QPixmap pic2;
        pic2.loadFromData(data2);
        emit yuan(pic2);
        m_maxtu->setWindowModality(Qt::ApplicationModal);
        m_maxtu->show();
    }



}
//删除
void recordxijun::on_pushButton_5_clicked()
{
    model->removeRow(ui->tableView->currentIndex().row());
    model->submitAll();
    model->setTable("xijun");//打开数据库中名为“”的表
    model->select();
    ui->tableView->setModel(model);
    ui->tableView->show();
    shuaxin();

}

void recordxijun::on_pushButton_6_clicked()
{
    emit fanhui();
}