QTableView不接受QDateTime
我正在设计一个包含多个字段和功能的主要用户界面。 然而,为了缩小这个问题,我创建了一个包含4列的小应用程序:name、image、dataDatabase和dateTime 我有一个带有QTableView的主窗口,只要我在QTableView中单击鼠标右键,就会打开一个AddItem对话框,其中包含:QTableView不接受QDateTime,qt,c++11,qt5,qt4,Qt,C++11,Qt5,Qt4,我正在设计一个包含多个字段和功能的主要用户界面。 然而,为了缩小这个问题,我创建了一个包含4列的小应用程序:name、image、dataDatabase和dateTime 我有一个带有QTableView的主窗口,只要我在QTableView中单击鼠标右键,就会打开一个AddItem对话框,其中包含: nameLineEdit ImLineEdit imageLineEdit 日期时间编辑 我遇到的问题是,我找不到通过AddItemDialog接受dateTimeEdit的方法 我并没有去da
class Item
{
public:
Item(const double dateTime,
const QString &name = "", const QString &image = "",
const QByteArray &imagesData = QByteArray());
QString name() const { return mName; }
QString image() const { return mImage; }
QByteArray imagesData() const { return mImagesData; }
double dateTime() const { return mDateTime; }
private:
QString mName;
QString mImage;
QByteArray mImagesData;
double mDateTime;
};
及其相关的项目.cpp
Item::Item(const double dateTime,
const QString &name, const QString &image,
const QByteArray &imagesData)
{
mName = name;
mImage = image;
mImagesData = imagesData;
mDateTime = dateTime;
}
#include "item.h"
Item::Item(const QDateTime &dateTime,
const QString &name, const QString &image,
const QByteArray &imagesData):
mName(name),
mImage(image),
mImagesData(imagesData),
mDateTime(dateTime)
{
}
我创建了一个database.h表,其中包含以下参数:
class dataBase : public QObject
{
Q_OBJECT
public:
explicit dataBase(QObject *parent = nullptr);
bool inizializationDataBase(const QString &nameDataBase);
bool configureDataBase();
QString getError() const { return mError; }
bool addItem(const Item &item);
private:
QSqlDatabase mDatabase;
QString mError;
};
及其相关的database.cpp文件-我只包括该文件最重要的代码:
#define CREATE_TABLE \
" CREATE TABLE IF NOT EXISTS Fish_Table" \
" (id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL" \
", name TEXT NOT NULL" \
", image TEXT NOT NULL" \
", dataDataBase BLOB NOT NULL" \
", dateTime DOUBLE NOT NULL)"
dataBase::dataBase(QObject *parent)
: QObject(parent)
{
}
bool dataBase::inizializationDataBase(const QString &nameDataBase) {
// code
}
bool dataBase::addItem(const Item &item) {
QSqlQuery q;
q.prepare("INSERT INTO Fish_Table (name, image, dataDatabase, dateTime) VALUES (?,?,?,?)");
q.addBindValue(item.name());
q.addBindValue(item.image());
q.addBindValue(item.imagesData());
q.addBindValue(item.dateTime());
bool ok = q.exec();
if (!ok) {
mError = q.lastError().text();
}
return ok;
}
最后是AddItemDialog.h和AddItemDialog.cpp,其中包含我试图传递到主窗口的QTableView的字段
AddItemDialog.h
namespace Ui
{
class AddItemDialog;
}
class AddItemDialog : public QDialog
{
Q_OBJECT
public:
explicit AddItemDialog(QWidget *parent = nullptr);
~AddItemDialog();
Item item() const { return mItem; }
private slots:
void on_toolButton_clicked();
void on_buttonBox_accepted();
void on_buttonBox_rejected();
private:
Ui::AddItemDialog *ui;
Item mItem;
};
#ifndef ITEM_H
#define ITEM_H
#include <QDateTime>
#include <QString>
class Item
{
public:
Item(const QDateTime & dateTime=QDateTime::currentDateTime(),
const QString &name = "", const QString &image = "",
const QByteArray &imagesData = QByteArray());
QString name() const { return mName; }
QString image() const { return mImage; }
QByteArray imagesData() const { return mImagesData; }
QDateTime dateTime() const { return mDateTime; }
private:
QString mName;
QString mImage;
QByteArray mImagesData;
QDateTime mDateTime;
};
#endif // ITEM_H
AddItemDialog.cpp
AddItemDialog::AddItemDialog(QWidget *parent)
: QDialog(parent)
, ui(new Ui::AddItemDialog)
{
ui->setupUi(this);
auto fileSystemModel = new QFileSystemModel(this);
fileSystemModel->setRootPath(QDir::rootPath());
ui->imageLineEdit->setCompleter(new QCompleter(fileSystemModel,this));
QDateTime dateTime;
dateTime.setDate(QDate::currentDate());
}
AddItemDialog::~AddItemDialog()
{
delete ui;
}
void AddItemDialog::on_toolButton_clicked()
{
auto nameDataBase = QFileDialog::getOpenFileName(this, "Open Images", QDir::rootPath(),
"Images (*.png *.jpg *jpeg *.tif *.tiff);;Any type (*.*)");
ui->imageLineEdit->setText(nameDataBase);
}
void AddItemDialog::on_buttonBox_accepted()
{
QFile dataBase(ui->imageLineEdit->text());
if (!dataBase.open(QIODevice::ReadOnly)) {
QMessageBox::critical(this, "Error", dataBase.errorString());
return;
}
mItem = Item(ui->nameLineEdit->text(),
ui->ImLineEdit->text(),dataBase.readAll());
dataBase.close();
accept();
}
因此,总结一下:
Item::Item(const double dateTime,
const QString &name, const QString &image,
const QByteArray &imagesData)
{
mName = name;
mImage = image;
mImagesData = imagesData;
mDateTime = dateTime;
}
#include "item.h"
Item::Item(const QDateTime &dateTime,
const QString &name, const QString &image,
const QByteArray &imagesData):
mName(name),
mImage(image),
mImagesData(imagesData),
mDateTime(dateTime)
{
}
感谢您提供我已经讨论了几天的有关此问题的信息。使用DATETIME作为字段,直接使用QDateTime:
#define CREATE_TABLE \
" CREATE TABLE IF NOT EXISTS Fish_Table" \
" (id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL" \
", name TEXT NOT NULL" \
", image TEXT NOT NULL" \
", dataDataBase BLOB NOT NULL" \
", dateTime DATETIME NOT NULL)" /// <---
然后直接传递QDateTime,如图所示:
void AddItemDialog::on_buttonBox_accepted()
{
QFile dataBase(ui->imageLineEdit->text());
if (!dataBase.open(QIODevice::ReadOnly)) {
QMessageBox::critical(this, "Error", dataBase.errorString());
return;
}
mItem = Item(ui->dateTimeEdit->dateTime(),
ui->nameLineEdit->text(),
ui->ImLineEdit->text(),
dataBase.readAll());
dataBase.close();
accept();
}
你在使用什么数据库?嗨,eyllanesc,我在使用QSQlite。你可以通过Githube共享你的.ui或更好的项目。我可以把我的Bitbucket递给你吗?把你项目的链接递给我