问题描述
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QDialog
from PyQt5 import uic
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QLabel
import re
import sys
class Window(QDialog):
def __init__(self):
super(Window,self).__init__()
uic.loadUi("formDialog.ui",self)
self.button = self.findChild(QPushButton,"submit")
self.cancelButton = self.findChild(QPushButton,"cancelButton")
self.text = self.findChild(QLineEdit,"locationLineEdit")
self.date = self.findChild(QLineEdit,"dateLineEdit")
self.iso = self.findChild(QLineEdit,"isoEdit")
##self.date.setText("ggg")
self.newCases = self.findChild(QLineEdit,"newCasesLineEdit")
self.newDeaths = self.findChild(QLineEdit,"newDeathsLineEdit")
self.button.clicked.connect(self.preSubmitValue)
self.error = self.findChild(QLabel,"errorLabel")
self.error.setHidden(True)
def verifyString(self,value):
if value == "" or not value.isalpha():
return True
return False
def verifyNumber(self,value):
if value == "" or not value.isdigit():
return True
return False
def preSubmitValue(self):
if self.verifyString(self.text.text()) == False and self.verifyNumber(self.newCases.text()) == False and self.verifyNumber(self.newDeaths.text()) == False and self.verifyString(self.iso.text())==False and self.verifyDate(self.date.text()) == False:
self.submitValue()
else:
self.error.setText("<font color='red'>Please fill out the fields properly</font>")
self.error.setHidden(False)
return False
def submitValue(self):
location,cases,deaths,iso,date= self.text.text(),self.newCases.text(),self.newDeaths.text(),self.iso.text(),self.date.text()
return location,date
def verifyDate(self,value):
text = r"\d{4}[-/]\d{2}[-/]\d{2}"
if self.date.text() !="" and re.match(text,self.date.text()):
return False
return True
这是上面的QDIALOG
import sys
import csv
from main import Window
from PyQt5.QtCore import Qt
from PyQt5.Qtsql import QsqlDatabase
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import qformlayout
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QAction
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QMenu
from PyQt5.Qtsql import QsqlTableModel
from PyQt5.Qtsql import QsqlQuery
from PyQt5.QtWidgets import QTableView
from PyQt5 import QtGui,QtCore
from PyQt5.QtWidgets import QStatusBar
from PyQt5.QtWidgets import QLineEdit
class Menu(QMainWindow):
model = None
con = None
cursor = None
length = 102
addButton = None
deleteBtton = None
def __init__(self):
super(Menu,self).__init__()
self.resize(415,200)
self.setwindowTitle("CODY HOWARD COVID CASES")
self.createWidgets()
toolbar = self.addToolBar("&MEnu")
toolbar.addWidget(self.addButton)
toolbar.addWidget(self.deleteBtton)
toolbar.addWidget(self.searchField)
self.createStatusBar()
self.createConnection()
self.model = QsqlTableModel(self)
self.model.setTable("CovidCases")
self.model.setEditStrategy(QsqlTableModel.OnFieldChange)
self.model.setHeaderData(0,Qt.Horizontal,"ISO_CODE")
self.model.setHeaderData(1,"Location")
self.model.setHeaderData(2,"Date")
self.model.setHeaderData(3,"New_cases")
self.model.setHeaderData(4,"New_deaths")
self.loadData()
self.addButton.clicked.connect(self.addNewRow)
# Set up the view
self.view = QTableView()
self.view.setModel(self.model)
self.view.setwindowTitle("VIEW")
self.view.resizeRowsToContents()
for i in range(5):
self.view.setColumnWidth(i,400)
self.setCentralWidget(self.view)
def createStatusBar(self):
status = QStatusBar()
status.showMessage("To update any of the cases,double click on a cell and Press enter after edit")
self.setStatusBar(status)
def createWidgets(self):
self.addButton = QPushButton("Add new Row")
self.deleteBtton = QPushButton("Delete a row")
self.searchField = QLineEdit("Search")
def addNewRow(self):##Here this is the method where i start the window,the program is meant to take some data from the QDIALOG and insert it into the QsqlTABLEMODEL BUT ALWAYS CRASHES AFTER IT EXITS
win = Window()
win.exec()_
location,date = win.submitValue()
print("fff0" + str(value1) + str(cases) + str(deaths) + iso + date)
row = self.model.record()
row.setValue("ISO_CODE",iso)
row.setValue("Location",location)
row.setValue("Date",date)
row.setValue("New_Cases",cases)
row.setValue("New_deaths",deaths)
self.model.insertRecord(-1,row)
def loadData(self):
print("d")
file = "C:\\Users\\Gabri\\Downloads\\owid-covid-data.csv"
with open(file,mode="r") as csvFile:
csvReader = csv.reader(csvFile);
headers = next(csvReader);
row = self.model.record()
print("Programmed by Cody H")
x = 0;
while x <= 100:
for lines in csvReader:
self.insert = (lines[0],lines[1],lines[2],lines[3],lines[4]);
row.setValue("ISO_CODE",lines[0])
row.setValue("Location",lines[1])
row.setValue("Date",lines[2])
row.setValue("New_Cases",lines[3])
row.setValue("New_deaths",lines[4])
self.model.insertRecord(x,row)
x += 1;
if x >= self.length:
break;
def createConnection(self):
self.con = QsqlDatabase.addDatabase("QsqlITE")
self.con.setDatabaseName(r"C:\Users\Gabri\PycharmProjects\PyQT\recordsTest.sqlite")
if not self.con.open():
QMessageBox.critical(
None,"QTableView Example - Error!","Database Error: %s" % con.lastError().databaseText(),)
sys.exit(1)
self.cursor = QsqlQuery()
self.cursor.exec(
"""
CREATE TABLE CovidCases (
iso_code integer NOT NULL,location text NOT NULL,date text NOT NULL,new_cases integer NOT NULL,new_deaths varchar(255)
)
"""
)
print(self.con.tables())
app = QApplication(sys.argv)
win = Menu()
win.show()
sys.exit(app.exec_())
Qdialog 是一种表单，它在 QmainWindow 的“AddNewRow”方法中将数据传递到另一个窗口，以便我可以将其插入到数据库中。 Qdialog 可以正常打开并获取数据，但是一旦我单击提交（该程序旨在从表单中返回值并关闭 Qdialog，但是一旦关闭该程序就会挂起然后崩溃。我可能做错了什么？是否有特定的退出 QDialog 的方法？
解决方法
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