Exercice 18
Reprendre l'exrcice précédent ( Exercice 17 ) En ajoutant cette fois-ci un objet QTableWidget nommé 'tableWidget' et une méthode nommée 'display_data()' permettant d'afficher les données de la table 'student' au sein de ce dernier comme le montre la figure suivante:
Solution
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from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtWidgets import QTableWidget, QTableWidgetItem import sqlite3 class Ui_Form(object): def setupUi(self, Form): Form.setObjectName("Form") Form.resize(529, 377) self.lbl_name = QtWidgets.QLabel(Form) self.lbl_name.setGeometry(QtCore.QRect(40, 20, 121, 16)) font = QtGui.QFont() font.setPointSize(12) self.lbl_name.setFont(font) self.lbl_name.setObjectName("lbl_name") self.lbl_name_2 = QtWidgets.QLabel(Form) self.lbl_name_2.setGeometry(QtCore.QRect(40, 60, 121, 16)) font = QtGui.QFont() font.setPointSize(12) self.lbl_name_2.setFont(font) self.lbl_name_2.setObjectName("lbl_name_2") self.lbl_name_3 = QtWidgets.QLabel(Form) self.lbl_name_3.setGeometry(QtCore.QRect(40, 100, 121, 16)) font = QtGui.QFont() font.setPointSize(12) self.lbl_name_3.setFont(font) self.lbl_name_3.setObjectName("lbl_name_3") self.lineEdit_name = QtWidgets.QLineEdit(Form) self.lineEdit_name.setGeometry(QtCore.QRect(160, 20, 311, 20)) self.lineEdit_name.setObjectName("lineEdit_name") self.lineEdit_email = QtWidgets.QLineEdit(Form) self.lineEdit_email.setGeometry(QtCore.QRect(160, 60, 311, 20)) self.lineEdit_email.setObjectName("lineEdit_email") self.comboBox_section = QtWidgets.QComboBox(Form) self.comboBox_section.setGeometry(QtCore.QRect(160, 100, 311, 22)) self.comboBox_section.setObjectName("comboBox_section") self.comboBox_section.addItem("") self.comboBox_section.addItem("") self.comboBox_section.addItem("") self.comboBox_section.addItem("") self.btn_validate = QtWidgets.QPushButton(Form) # add action to QPushButton self.btn_validate.clicked.connect(self.insert_data) self.btn_validate.setGeometry(QtCore.QRect(160, 140, 311, 31)) font = QtGui.QFont() font.setPointSize(12) self.btn_validate.setFont(font) self.btn_validate.setObjectName("btn_validate") self.tableWidget = QtWidgets.QTableWidget(Form) self.tableWidget.setGeometry(QtCore.QRect(30, 190, 441, 171)) self.tableWidget.setFrameShape(QtWidgets.QFrame.Panel) self.tableWidget.setFrameShadow(QtWidgets.QFrame.Sunken) self.tableWidget.setObjectName("tableWidget") self.tableWidget.setColumnCount(4) self.tableWidget.setRowCount(5) item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(0, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(1, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(2, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(3, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setVerticalHeaderItem(4, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(0, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(1, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(2, item) item = QtWidgets.QTableWidgetItem() self.tableWidget.setHorizontalHeaderItem(3, item) self.retranslateUi(Form) QtCore.QMetaObject.connectSlotsByName(Form) self.display_data() def retranslateUi(self, Form): _translate = QtCore.QCoreApplication.translate Form.setWindowTitle(_translate("Form", "Form")) self.lbl_name.setText(_translate("Form", "Name")) self.lbl_name_2.setText(_translate("Form", "Email")) self.lbl_name_3.setText(_translate("Form", "Section")) self.comboBox_section.setItemText(0, _translate("Form", "Math")) self.comboBox_section.setItemText(1, _translate("Form", "Physique")) self.comboBox_section.setItemText(2, _translate("Form", "Informatique")) self.comboBox_section.setItemText(3, _translate("Form", "SVT")) self.btn_validate.setText(_translate("Form", "Insert Data")) item = self.tableWidget.verticalHeaderItem(0) item.setText(_translate("Form", "1")) item = self.tableWidget.verticalHeaderItem(1) item.setText(_translate("Form", "2")) item = self.tableWidget.verticalHeaderItem(2) item.setText(_translate("Form", "3")) item = self.tableWidget.verticalHeaderItem(3) item.setText(_translate("Form", "4")) item = self.tableWidget.verticalHeaderItem(4) item.setText(_translate("Form", "5")) item = self.tableWidget.horizontalHeaderItem(0) item.setText(_translate("Form", "ID")) item = self.tableWidget.horizontalHeaderItem(1) item.setText(_translate("Form", "Name")) item = self.tableWidget.horizontalHeaderItem(2) item.setText(_translate("Form", "Email")) item = self.tableWidget.horizontalHeaderItem(3) item.setText(_translate("Form", "Section")) def insert_data(self): name = self.lineEdit_name.text() email = self.lineEdit_email.text() section = self.comboBox_section.currentText() try: # Connexion à la base de données SQLite3 conn = sqlite3.connect('database.db') cursor = conn.cursor() # Création de la table s'il n'existe pas cursor.execute(''' CREATE TABLE IF NOT EXISTS student ( id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, email TEXT, section TEXT ) ''') # Insertion des données dans la table cursor.execute('INSERT INTO student (name, email, section) VALUES (?, ?, ?)', (name, email, section)) # Validation de la transaction conn.commit() # Fermeture de la connexion conn.close() # Affichage d'un message de réussite QtWidgets.QMessageBox.information(Form, 'Success', 'Data inserted successfully.') except Exception as e: # En cas d'erreur, affichage d'un message d'erreur QtWidgets.QMessageBox.critical(Form, 'Error', f'Error inserting data: {str(e)}') self.display_data() # display data def display_data(self): # Connexion à la base de données SQLite3 conn = sqlite3.connect('database.db') self.cursor = conn.cursor() # Execute a query to retrieve data from the SQLite table self.cursor.execute('SELECT * FROM student') data = self.cursor.fetchall() # Set the number of rows and columns in the QTableWidget self.tableWidget.setRowCount(len(data)) self.tableWidget.setColumnCount(len(data[0])) # Populate the QTableWidget with data for row_index, row_data in enumerate(data): for col_index, col_data in enumerate(row_data): item = QTableWidgetItem(str(col_data)) self.tableWidget.setItem(row_index, col_index, item) def closeEvent(self, event): # Close the SQLite connection when the application is closed self.connection.close() if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) Form = QtWidgets.QWidget() ui = Ui_Form() ui.setupUi(Form) Form.show() sys.exit(app.exec_()) |
Younes Derfoufi
CRMEF OUJDA
