[PyQt] [Solved]Help displaying SQLite Database - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: GUI (https://python-forum.io/forum-10.html) +--- Thread: [PyQt] [Solved]Help displaying SQLite Database (/thread-37254.html) |
[Solved]Help displaying SQLite Database - Extra - May-19-2022 Hello, I'm trying to display my database on my TableWidgetItem in PyQt. This is a snippet of my SQLite part of the code: #--------------------------------------------------------------------- self.loaddata() def loaddata(self): connection = sqlite3.connect("inventory.db") cursor = connection.cursor() cursor.execute('select * from items') tablerow=0 results = cursor.fetchall() self.tableWidget.setRowCount(40) for row in results: self.tableWidget.setItem(tablerow, 0, QtWidgets.QTableWidgetItem(row[0])) self.tableWidget.setItem(tablerow, 1, QtWidgets.QTableWidgetItem(row[1])) self.tableWidget.setItem(tablerow, 2, QtWidgets.QTableWidgetItem(row[2])) tablerow+=1 connection.close() #---------------------------------------------------------------------But when I try to run my full script (shown below) I get an error saying there's no such table called 'items' (which is wrong because I already created the table and have some info loaded on it): Am I displaying my SQLite database to my GUI properly? How Do I fix this error?Any help would be greatly appreciated. Thanks in advance. Here's my full script right now: import sys from PyQt5 import QtWidgets from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QMainWindow, QLabel, QLineEdit, QTableWidget, QTableWidgetItem, QGridLayout, QVBoxLayout, QSizePolicy, QSpacerItem) from PyQt5.QtCore import Qt, QMetaObject, QCoreApplication from PyQt5.QtGui import QFont import sqlite3 class Ui_MainDisplay(QMainWindow): def __init__(self, parent = None): super(Ui_MainDisplay, self).__init__(parent) self.setObjectName("MainDisplay") self.setGeometry(0, 0, 1123, 903) self.setStyleSheet("background-color: rgb(0, 170, 255);") self.centralwidget = QWidget(self) self.centralwidget.setObjectName("centralwidget") self.gridLayout = QGridLayout(self.centralwidget) self.gridLayout.setObjectName("gridLayout") self.verticalLayout = QVBoxLayout() self.verticalLayout.setContentsMargins(-1, 0, -1, 0) self.verticalLayout.setSpacing(6) self.verticalLayout.setObjectName("verticalLayout") self.AddItemButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.AddItemButton.setFont(font) self.AddItemButton.setStyleSheet("background-color: rgb(85, 255, 0);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "\n" "") self.AddItemButton.setObjectName("AddItemButton") self.verticalLayout.addWidget(self.AddItemButton) self.DeleteItemButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.DeleteItemButton.setFont(font) self.DeleteItemButton.setStyleSheet("background-color: rgb(255, 65, 68);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.DeleteItemButton.setObjectName("DeleteItemButton") self.verticalLayout.addWidget(self.DeleteItemButton) self.CheckoutButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.CheckoutButton.setFont(font) self.CheckoutButton.setStyleSheet("background-color: rgb(255, 255, 0);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.CheckoutButton.setObjectName("CheckoutButton") self.verticalLayout.addWidget(self.CheckoutButton) self.ReturnButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.ReturnButton.setFont(font) self.ReturnButton.setStyleSheet("background-color: rgb(255, 170, 32);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.ReturnButton.setObjectName("ReturnButton") self.verticalLayout.addWidget(self.ReturnButton) self.ScanBarcodeButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.ScanBarcodeButton.setFont(font) self.ScanBarcodeButton.setStyleSheet("background-color: rgb(211, 211, 211);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.ScanBarcodeButton.setObjectName("ScanBarcodeButton") self.verticalLayout.addWidget(self.ScanBarcodeButton) self.MoreInfoButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.MoreInfoButton.setFont(font) self.MoreInfoButton.setStyleSheet("background-color: rgb(196, 17, 255);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;") self.MoreInfoButton.setObjectName("MoreInfoButton") self.verticalLayout.addWidget(self.MoreInfoButton) self.RefreshButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.RefreshButton.setFont(font) self.RefreshButton.setStyleSheet("background-color: rgb(0, 255, 255);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "\n" "") self.RefreshButton.setObjectName("RefreshButton") self.verticalLayout.addWidget(self.RefreshButton) spacerItem = QSpacerItem(20, 40, QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Expanding) self.verticalLayout.addItem(spacerItem) self.LogoutButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.LogoutButton.setFont(font) self.LogoutButton.setStyleSheet("background-color: rgb(255, 255, 255);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.LogoutButton.setObjectName("LogoutButton") self.verticalLayout.addWidget(self.LogoutButton) self.gridLayout.addLayout(self.verticalLayout, 4, 3, 1, 1) self.Header = QLabel(self.centralwidget) font = QFont() font.setPointSize(15) font.setBold(True) font.setWeight(75) self.Header.setFont(font) self.Header.setStyleSheet("background-color: rgb(0, 0, 0);\n" "color: rgb(255, 255, 255);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;") self.Header.setAlignment(Qt.AlignmentFlag.AlignCenter) self.Header.setObjectName("Header") self.gridLayout.addWidget(self.Header, 0, 1, 1, 3) self.SearchButton = QPushButton(self.centralwidget) font = QFont() font.setPointSize(10) font.setBold(True) font.setWeight(75) self.SearchButton.setFont(font) self.SearchButton.setStyleSheet("background-color: rgb(211, 211, 211);\n" "border-style: outset;\n" "border-width: 2px;\n" "border-radius: 15px;\n" "border-color: black;\n" "padding: 4px;\n" "") self.SearchButton.setObjectName("SearchButton") self.gridLayout.addWidget(self.SearchButton, 2, 1, 1, 1) self.SearchBar = QLineEdit(self.centralwidget) self.SearchBar.setStyleSheet("background-color: rgb(255, 255, 255);") self.SearchBar.setObjectName("SearchBar") self.gridLayout.addWidget(self.SearchBar, 2, 2, 1, 1) self.InventoryDisplay = QTableWidget(self.centralwidget) font = QFont() font.setBold(False) font.setWeight(50) self.InventoryDisplay.setFont(font) self.InventoryDisplay.setStyleSheet("background-color: rgb(255, 255, 255);\n" "") self.InventoryDisplay.setObjectName("InventoryDisplay") self.InventoryDisplay.setColumnCount(11) self.InventoryDisplay.setRowCount(0) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(0, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(1, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(2, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(3, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(4, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(5, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(6, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(7, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(8, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(9, item) item = QTableWidgetItem() self.InventoryDisplay.setHorizontalHeaderItem(10, item) self.gridLayout.addWidget(self.InventoryDisplay, 4, 1, 1, 2) self.setCentralWidget(self.centralwidget) self.statusbar = self.statusBar() self.statusbar.setObjectName("statusbar") #self.setStatusBar(self.statusbar) #--------------------------------------------------------------------- self.loaddata() def loaddata(self): connection = sqlite3.connect("inventory.db") cursor = connection.cursor() cursor.execute('select * from items') tablerow=0 results = cursor.fetchall() self.tableWidget.setRowCount(40) for row in results: self.tableWidget.setItem(tablerow, 0, QtWidgets.QTableWidgetItem(row[0])) self.tableWidget.setItem(tablerow, 1, QtWidgets.QTableWidgetItem(row[1])) self.tableWidget.setItem(tablerow, 2, QtWidgets.QTableWidgetItem(row[2])) tablerow+=1 connection.close() #--------------------------------------------------------------------- self.retranslateUi(self) QMetaObject.connectSlotsByName(self) def retranslateUi(self, MainDisplay): _translate = QCoreApplication.translate self.setWindowTitle(_translate("MainDisplay", "AdminMenu")) self.AddItemButton.setText(_translate("MainDisplay", "Add Item")) self.DeleteItemButton.setText(_translate("MainDisplay", "Delete Item")) self.CheckoutButton.setText(_translate("MainDisplay", "Check Out")) self.ReturnButton.setText(_translate("MainDisplay", "Return")) self.ScanBarcodeButton.setText(_translate("MainDisplay", "Scan Barcode")) self.MoreInfoButton.setText(_translate("MainDisplay", "More Info")) self.RefreshButton.setText(_translate("MainDisplay", "Refresh")) self.LogoutButton.setText(_translate("MainDisplay", "Log Out")) self.Header.setText(_translate("MainDisplay", "Admin Menu")) self.SearchButton.setText(_translate("MainDisplay", "Search")) item = self.InventoryDisplay.horizontalHeaderItem(0) item.setText(_translate("MainDisplay", "ID")) item = self.InventoryDisplay.horizontalHeaderItem(1) item.setText(_translate("MainDisplay", "Name")) item = self.InventoryDisplay.horizontalHeaderItem(2) item.setText(_translate("MainDisplay", "Quantity")) item = self.InventoryDisplay.horizontalHeaderItem(3) item.setText(_translate("MainDisplay", "Price ($)")) item = self.InventoryDisplay.horizontalHeaderItem(4) item.setText(_translate("MainDisplay", "Sell Price ($)")) item = self.InventoryDisplay.horizontalHeaderItem(5) item.setText(_translate("MainDisplay", "Description")) item = self.InventoryDisplay.horizontalHeaderItem(6) item.setText(_translate("MainDisplay", "Category")) item = self.InventoryDisplay.horizontalHeaderItem(7) item.setText(_translate("MainDisplay", "Location")) item = self.InventoryDisplay.horizontalHeaderItem(8) item.setText(_translate("MainDisplay", "Length (Ft)")) item = self.InventoryDisplay.horizontalHeaderItem(9) item.setText(_translate("MainDisplay", "Barcode #")) item = self.InventoryDisplay.horizontalHeaderItem(10) item.setText(_translate("MainDisplay", "Date Updated")) #---------------------------------------------------------------------------------------------------- # Button Actions #---------------------------------------------------------------------------------------------------- #------------------------------------------ #Logout Button #------------------------------------------ #When the Logout button is clicked -> LogoutClicked Function LogoutButton = self.LogoutButton LogoutButton.clicked.connect(self.LogoutClicked) #------------------------------------------ #------------------------------------------ #Add Item Button #------------------------------------------ #When the AddItem button is clicked -> AddItem Function AddItemButton = self.AddItemButton AddItemButton.clicked.connect(self.AddItemClicked) #------------------------------------------ #------------------------------------------ #Remove Item Button #------------------------------------------ #When the RemoveItem button is clicked -> RemoveItem Function RemoveItemButton = self.DeleteItemButton RemoveItemButton.clicked.connect(self.RemoveItemClicked) #------------------------------------------ #------------------------------------------ #Checkout Item Button #------------------------------------------ #When the Checkout button is clicked -> Checkout Function CheckoutButton = self.CheckoutButton CheckoutButton.clicked.connect(self.CheckoutClicked) #------------------------------------------ #------------------------------------------ #Return Item Button #------------------------------------------ #When the Return button is clicked -> Return Function ReturnButton = self.ReturnButton ReturnButton.clicked.connect(self.ReturnClicked) #------------------------------------------ #------------------------------------------ #Scan Barcode Button #------------------------------------------ #When the Scan Barcode button is clicked -> ScanBarcode Function ScanBarcodeButton = self.ScanBarcodeButton ScanBarcodeButton.clicked.connect(self.ScanBarcodeClicked) #------------------------------------------ #------------------------------------------ #More Info Button #------------------------------------------ #When the More Info button is clicked -> MoreInfo Function MoreInfoButton = self.MoreInfoButton MoreInfoButton.clicked.connect(self.MoreInfoClicked) #------------------------------------------ #------------------------------------------ #Refresh Button #------------------------------------------ #When the More Info button is clicked -> MoreInfo Function RefreshButton = self.RefreshButton RefreshButton.clicked.connect(self.RefreshClicked) #------------------------------------------ #------------------------------------------ #Search Button #------------------------------------------ #When the More Info button is clicked -> MoreInfo Function SearchButton = self.SearchButton SearchButton.clicked.connect(self.SearchClicked) #------------------------------------------ #---------------------------------- #Logout Function def LogoutClicked(self): #Print in terminal for testing: print("The Logout Button was clicked") #Switch from this screen to the LoginScreen #(Import LoginScreen here to prevent circular import error) from LoginScreen import Ui_Loginscreen self.win = Ui_Loginscreen() #Define LoginScreen self.win.show() #Show Login Screen self.close() #Close this screen (AdminMenu) #---------------------------------- #---------------------------------- #AddItem Function def AddItemClicked(self): #Print in terminal for testing: print("The Add Item Button was clicked") #---------------------------------- #---------------------------------- #RemoveItem Function def RemoveItemClicked(self): #Print in terminal for testing: print("The Delete Item Button was clicked") #---------------------------------- #---------------------------------- #Checkout Function def CheckoutClicked(self): #Print in terminal for testing: print("The Checkout Button was clicked") #---------------------------------- #---------------------------------- #Return Function def ReturnClicked(self): #Print in terminal for testing: print("The Return Button was clicked") #---------------------------------- #---------------------------------- #ScanBarcode Function def ScanBarcodeClicked(self): #Print in terminal for testing: print("The Scan Barcode Button was clicked") #---------------------------------- #---------------------------------- #MoreInfo Function def MoreInfoClicked(self): #Print in terminal for testing: print("The More Info Button was clicked") #---------------------------------- #---------------------------------- #Refresh Function def RefreshClicked(self): #Print in terminal for testing: print("The Refresh Button was clicked") #---------------------------------- #---------------------------------- #Search Function def SearchClicked(self): #Print in terminal for testing: print("The Search Button was clicked") #---------------------------------- #---------------------------------------------------------------------------------------------------- if __name__ == '__main__': app = QApplication(sys.argv) win = Ui_MainDisplay() win.show() sys.exit(app.exec_()) RE: Help displaying SQLite Database - Axel_Erfurt - May-19-2022 Your database has no table items. Here's an old example I made a few years ago. There you can select the table via ComboBox. https://gist.github.com/Axel-Erfurt/ae983df9f65bef0b82a9a3a83a00014a RE: Help displaying SQLite Database - Extra - May-19-2022 I tried adding WHERE type = table to my SELECT statement to be more specific but I get the same error. My table is populated so I don't know what you mean by Quote:Your database has no table items.could you please clarify what you mean by that? Here's the table (called items) that was created: import sqlite3 def createDatabase(): #Create a database (inventory.db) connection = sqlite3.connect("inventory.db") cursor = connection.cursor() table = """CREATE TABLE IF NOT EXISTS items (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT NOT NULL, Quantity INT NOT NULL, Price DOUBLE NOT NULL, Sell_Price DOUBLE, Description TEXT, Category TEXT, Location TEXT NOT NULL, Length_Ft INT, Barcode INT, Image BLOB, Date Updated datetime default current_timestamp);""" #Execute the creation of the table cursor.execute(table) #print("The database has been created") #Commit the changes connection.commit() #Close the connection connection.close() RE: Help displaying SQLite Database - theboostra1 - May-20-2022 voip phone I’ve been searching for some decent stuff on the subject and haven't had any luck up until this point, You just got a new biggest fan!.. RE: Help displaying SQLite Database - Axel_Erfurt - May-20-2022 (May-19-2022, 11:34 PM)Extra Wrote: Here's the table (called items) that was created: Ok, that works for me after changing self.tableWidget to self.InventoryDisplay in loaddata self.tableWidget was never defined def loaddata(self): connection = sqlite3.connect("inventory.db") cursor = connection.cursor() cursor.execute('select * from items') tablerow=0 results = cursor.fetchall() self.InventoryDisplay.setRowCount(40) for row in results: self.InventoryDisplay.setItem(tablerow, 0, QtWidgets.QTableWidgetItem(row[0])) self.InventoryDisplay.setItem(tablerow, 1, QtWidgets.QTableWidgetItem(row[1])) self.InventoryDisplay.setItem(tablerow, 2, QtWidgets.QTableWidgetItem(row[2])) tablerow+=1 connection.close() #--------------------------------------------------------------------- self.retranslateUi(self) QMetaObject.connectSlotsByName(self) RE: Help displaying SQLite Database - Axel_Erfurt - May-20-2022 Another thing I noticed is that you don't have to insert line endings in stylesheet. You can write it like this. self.AddItemButton.setStyleSheet("""background-color: rgb(85, 255, 0); border-style: outset; border-width: 2px; border-radius: 15px; border-color: black; padding: 4px;""") RE: Help displaying SQLite Database - Larz60+ - May-20-2022 FYI: If you have any need for an SQLite database editor/viewer for use outside of your code, I'd recommend Db Browser: https://sqlitebrowser.org/ There may be a better one available, but this is simple, free, and complete. RE: Help displaying SQLite Database - Extra - May-20-2022 (May-20-2022, 08:40 AM)Axel_Erfurt Wrote:(May-19-2022, 11:34 PM)Extra Wrote: Here's the table (called items) that was created: Thanks, that got my table to display. The only problem is that just the item's name is displayed there is other other information there even through there's supposed to be. For ex I added the following info to the items table: NAME MG996R Quantity 10 Price 5 Sell_Price 6 Description A Servo Category Servos Location S-1 Length_Ft Barcode Image Date Updated But all I get outputted to the table is the item Name: MG996R Nothing else. My question is, why isn't the other info showing? RE: Help displaying SQLite Database - Axel_Erfurt - May-21-2022 try this def loaddata(self): connection = sqlite3.connect("inventory.db") cursor = connection.cursor() cursor.execute('select * from items') row = 0 self.InventoryDisplay.setRowCount(40) while True: form = cursor.fetchone() if form == None: break for column, item in enumerate(form): self.InventoryDisplay.setItem(row, column, QTableWidgetItem(str(item))) print(str(item)) row += 1 connection.close() #--------------------------------------------------------------------- self.retranslateUi(self) QMetaObject.connectSlotsByName(self) RE: Help displaying SQLite Database - Extra - May-21-2022 Thanks that worked! |