#include "class_table.h"
#include "ui_class_table.h"
#include <QDebug>
#include <QHeaderView>
#include <QSqlError>
#include <QApplication>
#include <QSqlRecord>
#include <QDateTime>

class_table::class_table(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::class_table)
{
        ui->setupUi(this);
        sqlQueryModel = new QSqlQueryModel(this);

        /* 数据库初始化 */
        sqldata_init();
        model = new QSqlTableModel(this, sqlDatabase);
        /* 模型设置表的名字，需要与数据库的表的名字相同 */
        model->setTable("employee");
        /* 数据修改后立马保存到数据库 */
         model->setEditStrategy(QSqlTableModel::OnFieldChange);
         model->select();//执行上面语句

         if (model->lastError().isValid())
         {
             qDebug()<<"选择数据失败！"<<endl;
         }
         model->setHeaderData(0, Qt::Horizontal, "星期一");
         model->setHeaderData(1, Qt::Horizontal, "星期二");
         model->setHeaderData(2, Qt::Horizontal, "星期三");
         model->setHeaderData(3, Qt::Horizontal, "星期四");
         model->setHeaderData(4, Qt::Horizontal, "星期五");
         model->setHeaderData(5, Qt::Horizontal, "星期六");
         model->setHeaderData(6, Qt::Horizontal, "星期日");
         ui->tableView->setModel(model);//加载模型显示
         /*tableView布局*/
        // ui->tableView->setColumnHidden(0,125);
         //ui->tableView->setColumnWidth(1, 125);
          //ui->tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);//自动调整列宽
         //ui->tableView->setWordWrap(true);
         ui->tableView->verticalHeader()->setDefaultSectionSize(100);
         ui->tableView->horizontalHeader()->setDefaultSectionSize(103);

         /*显示时间*/
         QDateTime dateTime;
         dateTime = QDateTime::currentDateTime();
         //qDebug() << dateTime.toString("yyyy-MM-dd hh:mm:ss dddd");
         ui->label_7->setText(dateTime.toString("yyyy-MM-dd dddd"));

         floatingbutton= new FloatingButton (this);
               // 将悬浮球的pressed()信号连接到槽函数onButtonPressed()上
         connect(floatingbutton, &FloatingButton::pressed, this, &class_table::onButtonPressed);

}
class_table::~class_table()
{
    sqlDatabase.close();
    delete ui;
    delete model;
    delete dataWidgetMapper;
    delete itemSelectionModel;
    delete floatingbutton;
}
void class_table::onButtonPressed()
{
    emit class_close(false);
    qDebug() << "悬浮球被按下了！";
}
void class_table::sqldata_init()
{
    /* 查看本机可用的数据库驱动 */
    QStringList drivers = QSqlDatabase::drivers();
    foreach(QString driver, drivers) {
        qDebug()<<driver;
    }
    /* 以QSQLITE驱动方式打开或者创建数据库 */
    sqlDatabase = QSqlDatabase::addDatabase("QSQLITE");
    sqlDatabase.setDatabaseName("employee.db");
    /* 以open的方式打开class.db数据库，则会创建一个class.db */

    if (!sqlDatabase.open())
        qDebug()<<"连接数据库错误"<<sqlDatabase.lastError()<<endl;
    else
        qDebug()<<"连接数据库成功"<<endl;
    QSqlQuery query(sqlDatabase);

    /* 使用指令式创建表 */
    query.exec("create table employee (Monday vchar(10), Tuesday vchar(10), Wednesday vchar(10),Thursday vchar(10),"
               "Friday vchar(10),Saturday vchar(10),Sunday vchar(10))");

    /* 以指令的方式插入数据，如果数据已经存在则不会成功不能插入 */
//    query.exec(tr("insert into employee values('没课','自动控制系统-电子楼501','电气设备及plc技术-旭日楼519','没课','没课','没课','没课')"));
//    query.exec(tr("insert into employee values('电气设备及plc技术-电子楼308','无课','机器视觉工业应用-电子楼501','自动控制系统-电子楼405','没课','机器视觉工业应用-电子楼405','没课')"));
//    query.exec(tr("insert into employee values('没课','没课','没课','没课','没课','没课','没课')"));
//    query.exec(tr("insert into employee values('没课','没课','没课','没课','没课','没课','没课')"));
//    query.exec(tr("insert into employee values('没课','没课','没课','没课','没课','没课','没课')"));
//    query.exec(tr("insert into employee values('没课','没课','没课','没课','没课','没课','没课')"));

}
void class_table::sqldata_delate(int row)
{
    model->removeRow(row);
    model->submit();//提交当前行的修改到数据库
    model->submitAll();
    model->select();
}