Pyqt SQLite Project Have Features like login, Add, Delete, Search, Update, Show the Students. In this, I show all the CURD operations of the Program. All Project is well represented and with interactive Toolbar & Menu bar. The database is included in the repository.
- Dashboard
- Login
- User list
- Add User
- Search User
- Modify User
- Delete User
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from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtPrintSupport import *
import sys,sqlite3,time
import os
#Insert Dialog box where user can register the students.
class InsertDialog(QDialog):
def __init__(self, *args, **kwargs):
super(InsertDialog, self).__init__(*args, **kwargs)
self.QBtn = QPushButton() #create Push button
self.QBtn.setText("Register")
self.setWindowTitle("Add Student")
self.setFixedWidth(300)
self.setFixedHeight(250)
self.QBtn.clicked.connect(self.addstudent)
layout = QVBoxLayout() #set verticle layout
self.nameinput = QLineEdit()
self.nameinput.setPlaceholderText("Name")
layout.addWidget(self.nameinput)
self.branchinput = QComboBox() # create and add value to combobox
self.branchinput.addItem("Mechanical")
self.branchinput.addItem("Civil")
self.branchinput.addItem("Electrical")
self.branchinput.addItem("Electronics and Communication")
self.branchinput.addItem("Computer Science")
self.branchinput.addItem("Information Technology")
layout.addWidget(self.branchinput)
self.seminput = QComboBox()
self.seminput.addItem("1")
self.seminput.addItem("2")
self.seminput.addItem("3")
self.seminput.addItem("4")
self.seminput.addItem("5")
self.seminput.addItem("6")
self.seminput.addItem("7")
self.seminput.addItem("8")
layout.addWidget(self.seminput)
self.mobileinput = QLineEdit()
self.mobileinput.setPlaceholderText("Mobile")
self.mobileinput.setInputMask('99999 99999') # set validator for user can only input interger input
layout.addWidget(self.mobileinput)
self.addressinput = QLineEdit()
self.addressinput.setPlaceholderText("Address")
layout.addWidget(self.addressinput)
layout.addWidget(self.QBtn)
self.setLayout(layout)
# this function get value from all input box and insert these values in database.
def addstudent(self):
name = ""
branch = ""
sem = -1
mobile = -1
address = ""
name = self.nameinput.text()
branch = self.branchinput.itemText(self.branchinput.currentIndex())
sem = self.seminput.itemText(self.seminput.currentIndex())
mobile = self.mobileinput.text()
address = self.addressinput.text()
try:
self.conn = sqlite3.connect("database.db")
self.c = self.conn.cursor()
self.c.execute("INSERT INTO students (name,branch,sem,Mobile,address) VALUES (?,?,?,?,?)",(name,branch,sem,mobile,address))
self.conn.commit()
self.c.close()
self.conn.close()
QMessageBox.information(QMessageBox(),'Successful','Student is added successfully to the database.')
self.close()
except Exception:
QMessageBox.warning(QMessageBox(), 'Error', 'Could not add student to the database.')
class SearchDialog(QDialog):
def __init__(self, *args, **kwargs):
super(SearchDialog, self).__init__(*args, **kwargs)
self.QBtn = QPushButton()
self.QBtn.setText("Search")
self.setWindowTitle("Search user")
self.setFixedWidth(300)
self.setFixedHeight(100)
self.QBtn.clicked.connect(self.searchstudent)
layout = QVBoxLayout()
self.searchinput = QLineEdit()
self.onlyInt = QIntValidator()
self.searchinput.setValidator(self.onlyInt)
self.searchinput.setPlaceholderText("Roll No.")
layout.addWidget(self.searchinput)
layout.addWidget(self.QBtn)
self.setLayout(layout)
def searchstudent(self):
searchrol = ""
searchrol = self.searchinput.text()
try:
self.conn = sqlite3.connect("database.db")
self.c = self.conn.cursor()
result = self.c.execute("SELECT * from students WHERE roll="+str(searchrol))
row = result.fetchone()
serachresult = "Rollno : "+str(row[0])+'\n'+"Name : "+str(row[1])+'\n'+"Branch : "+str(row[2])+'\n'+"Sem : "+str(row[3])+'\n'+"Address : "+str(row[4])
QMessageBox.information(QMessageBox(), 'Successful', serachresult)
self.conn.commit()
self.c.close()
self.conn.close()
except Exception:
QMessageBox.warning(QMessageBox(), 'Error', 'Could not Find student from the database.')
class DeleteDialog(QDialog):
def __init__(self, *args, **kwargs):
super(DeleteDialog, self).__init__(*args, **kwargs)
self.QBtn = QPushButton()
self.QBtn.setText("Delete")
self.setWindowTitle("Delete Student")
self.setFixedWidth(300)
self.setFixedHeight(100)
self.QBtn.clicked.connect(self.deletestudent)
layout = QVBoxLayout()
self.deleteinput = QLineEdit()
self.onlyInt = QIntValidator()
self.deleteinput.setValidator(self.onlyInt)
self.deleteinput.setPlaceholderText("Roll No.")
layout.addWidget(self.deleteinput)
layout.addWidget(self.QBtn)
self.setLayout(layout)
def deletestudent(self):
delrol = ""
delrol = self.deleteinput.text()
try:
self.conn = sqlite3.connect("database.db")
self.c = self.conn.cursor()
self.c.execute("DELETE from students WHERE roll="+str(delrol))
self.conn.commit()
self.c.close()
self.conn.close()
QMessageBox.information(QMessageBox(),'Successful','Deleted From Table Successful')
self.close()
except Exception:
QMessageBox.warning(QMessageBox(), 'Error', 'Could not Delete student from the database.')
class LoginDialog(QDialog):
def __init__(self, *args, **kwargs):
super(LoginDialog, self).__init__(*args, **kwargs)
self.setFixedWidth(300)
self.setFixedHeight(120)
layout = QVBoxLayout()
self.passinput = QLineEdit()
self.passinput.setEchoMode(QLineEdit.Password)
self.passinput.setPlaceholderText("Enter Password.")
self.QBtn = QPushButton()
self.QBtn.setText("Login")
self.setWindowTitle('Login')
self.QBtn.clicked.connect(self.login)
title = QLabel("Login")
font = title.font()
font.setPointSize(16)
title.setFont(font)
layout.addWidget(title)
layout.addWidget(self.passinput)
layout.addWidget(self.QBtn)
self.setLayout(layout)
def login(self):
if(self.passinput.text() == "Acet"):
self.accept()
else:
QMessageBox.warning(self, 'Error', 'Wrong Password')
class AboutDialog(QDialog):
def __init__(self, *args, **kwargs):
super(AboutDialog, self).__init__(*args, **kwargs)
self.setFixedWidth(300)
self.setFixedHeight(250)
QBtn = QDialogButtonBox.Ok # No cancel
self.buttonBox = QDialogButtonBox(QBtn)
self.buttonBox.accepted.connect(self.accept)
self.buttonBox.rejected.connect(self.reject)
layout = QVBoxLayout()
title = QLabel("STDMGMT")
font = title.font()
font.setPointSize(20)
title.setFont(font)
labelpic = QLabel()
pixmap = QPixmap('icon/logo.png')
pixmap = pixmap.scaledToWidth(275)
labelpic.setPixmap(pixmap)
labelpic.setFixedHeight(150)
layout.addWidget(title)
layout.addWidget(QLabel("Version 5.3.2"))
layout.addWidget(QLabel("Copyright 2018 CYB Inc."))
layout.addWidget(labelpic)
layout.addWidget(self.buttonBox)
self.setLayout(layout)
class MainWindow(QMainWindow):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.conn = sqlite3.connect("database.db")
self.c = self.conn.cursor()
self.c.execute("CREATE TABLE IF NOT EXISTS students(roll INTEGER PRIMARY KEY AUTOINCREMENT ,name TEXT,branch TEXT,sem INTEGER,mobile INTEGER,address TEXT)")
self.c.close()
file_menu = self.menuBar().addMenu("&File")
help_menu = self.menuBar().addMenu("&About")
self.setWindowTitle("Student Management CRUD")
self.setMinimumSize(800, 600)
self.tableWidget = QTableWidget()
self.setCentralWidget(self.tableWidget)
self.tableWidget.setAlternatingRowColors(True)
self.tableWidget.setColumnCount(6)
self.tableWidget.horizontalHeader().setCascadingSectionResizes(False)
self.tableWidget.horizontalHeader().setSortIndicatorShown(False)
self.tableWidget.horizontalHeader().setStretchLastSection(True)
self.tableWidget.verticalHeader().setVisible(False)
self.tableWidget.verticalHeader().setCascadingSectionResizes(False)
self.tableWidget.verticalHeader().setStretchLastSection(False)
self.tableWidget.setHorizontalHeaderLabels(("Roll No.", "Name", "Branch", "Sem", "Mobile","Address"))
toolbar = QToolBar()
toolbar.setMovable(False)
self.addToolBar(toolbar)
statusbar = QStatusBar()
self.setStatusBar(statusbar)
btn_ac_adduser = QAction(QIcon("icon/add.png"), "Add Student", self)
btn_ac_adduser.triggered.connect(self.insert)
btn_ac_adduser.setStatusTip("Add Student")
toolbar.addAction(btn_ac_adduser)
btn_ac_refresh = QAction(QIcon("icon/refresh.png"),"Refresh",self)
btn_ac_refresh.triggered.connect(self.loaddata)
btn_ac_refresh.setStatusTip("Refresh Table")
toolbar.addAction(btn_ac_refresh)
btn_ac_search = QAction(QIcon("icon/search.png"), "Search", self)
btn_ac_search.triggered.connect(self.search)
btn_ac_search.setStatusTip("Search User")
toolbar.addAction(btn_ac_search)
btn_ac_delete = QAction(QIcon("icon/trash.png"), "Delete", self)
btn_ac_delete.triggered.connect(self.delete)
btn_ac_delete.setStatusTip("Delete User")
toolbar.addAction(btn_ac_delete)
adduser_action = QAction(QIcon("icon/add.png"),"Insert Student", self)
adduser_action.triggered.connect(self.insert)
file_menu.addAction(adduser_action)
searchuser_action = QAction(QIcon("icon/search.png"), "Search Student", self)
searchuser_action.triggered.connect(self.search)
file_menu.addAction(searchuser_action)
deluser_action = QAction(QIcon("icon/trash.png"), "Delete", self)
deluser_action.triggered.connect(self.delete)
file_menu.addAction(deluser_action)
about_action = QAction(QIcon("icon/info.png"),"Developer", self)
about_action.triggered.connect(self.about)
help_menu.addAction(about_action)
def loaddata(self):
self.connection = sqlite3.connect("database.db")
query = "SELECT * FROM students"
result = self.connection.execute(query)
self.tableWidget.setRowCount(0)
for row_number, row_data in enumerate(result):
self.tableWidget.insertRow(row_number)
for column_number, data in enumerate(row_data):
self.tableWidget.setItem(row_number, column_number,QTableWidgetItem(str(data)))
self.connection.close()
def handlePaintRequest(self, printer):
document = QTextDocument()
cursor = QTextCursor(document)
model = self.table.model()
table = cursor.insertTable(
model.rowCount(), model.columnCount())
for row in range(table.rows()):
for column in range(table.columns()):
cursor.insertText(model.item(row, column).text())
cursor.movePosition(QTextCursor.NextCell)
document.print_(printer)
def insert(self):
dlg = InsertDialog()
dlg.exec_()
def delete(self):
dlg = DeleteDialog()
dlg.exec_()
def search(self):
dlg = SearchDialog()
dlg.exec_()
def about(self):
dlg = AboutDialog()
dlg.exec_()
app = QApplication(sys.argv)
passdlg = LoginDialog()
if(passdlg.exec_() == QDialog.Accepted):
window = MainWindow()
window.show()
window.loaddata()
sys.exit(app.exec_())
Ajay Randhawa
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