Question

我在代码中有一个从sqlite数据库（ref LaBase）中提取的简单TableView，主要有2列填充datetime.I在datetime1的每一行datetime2上减去时间以获得时间增量。问题是： 1 /如何显示结果，即第3列中的时间增量和 2 /如何将结果插入数据库？相关代码：

class MainDialog(QDialog, TabView.Ui_Dialog):

def __init__(self, parent=None):
    super(MainDialog, self).__init__(parent)
    self.setupUi(self)
    # appel de la classe du module dbessai
    self.LaBase = LaBase()
    self.model = QSqlTableModel()
    self.model.setTable("Contact")
    self.model.setEditStrategy(QSqlTableModel.OnRowChange)
    self.model.select()
    self.model.setHeaderData(0, Qt.Horizontal, "ID")
    self.model.setHeaderData(1, Qt.Horizontal, "pilot_1")
    self.model.setHeaderData(2, Qt.Horizontal, "datetime1")
    self.model.setHeaderData(3, Qt.Horizontal, "datetime2")
    self.model.setHeaderData(4, Qt.Horizontal, "Calcul")
    self.tableView.setModel(self.model)

def setdata(self):
    query = QSqlQuery()
    query.prepare("INSERT INTO Contact (pilot_1,datetime1,datetime2,total)" "VALUES (?,?,?,?)")
    query.bindValue(0, self.lineEdit_pilote.text())
    query.bindValue(1, self.dateTimeEdit.text())
    query.bindValue(2, self.dateTimeEdit_2.text())
    query.bindValue(3, self.get_date_diff()) #This line is wrong
    query.exec_()
    self.model.select()

def remove_row(self):
    index = self.tableView.currentIndex()
    deleteconf = QMessageBox.critical(self.parent(), "DELETE ROW", "REALLY DELETE", QMessageBox.Yes,
                                      QMessageBox.No)
    if deleteconf == QMessageBox.Yes:
        self.model.removeRow(index.row())
        self.model.submitAll()
        self.model.select()
        return
    else:
        return

def get_date_diff(self):
    quer = QSqlTableModel(self.model)
    quer.setTable("Contact")
    quer.select()
    i = 0
    while i < quer.rowCount():
        time1 = quer.record(i).value("datetime1")
        time2 = quer.record(i).value("datetime2")
        i += 1
        diff = datetime.strptime(time2, "%d/%m/%Y %H:%M") - datetime.strptime(time1, "%d/%m/%Y %H:%M")
        return diff

@pyqtSlot()
def on_calculer_clicked(self):
    self.get_date_diff()

@pyqtSlot()
def on_pushButton_4_clicked(self):
    self.setdata()

@pyqtSlot()
def on_Effacer_clicked(self):
    self.remove_row()

只需将query.bindValue(3, self.get_date_diff())转换为query.bindValue(3, str(self.get_date_diff()))我就能得到我想要的东西，但我只在第一行得到它...我想我需要在方法remove_row中的某个地方使用for循环来获取所有内容线条。有什么想法吗？

在PyQt QTableView和sqlite DB

0 个答案: