Can't delete information from table made with information pulled from sqlite3

[SpeeDEV]

Hello,

I enter the information first through the interface, then register it. There is no problem here. But I cannot delete the data inserted in the table.

Interface code:
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QTableWidgetItem, QHeaderView

from Ui_tamir import Ui_Dialog

import sys
import os
import sqlite3 as sql

os.system("python Baglan.py")
os.system("python TabloOlustur.py")

global urunno, alacakkisiadsoyad, telno, esya, parca, yapilacaklar, fiyat

class Window(QtWidgets.QMainWindow):
    def __init__(self):
        super(Window, self).__init__()
        self.ui = Ui_Dialog()
        self.ui.setupUi(self)

        self.formYukle()
        self.ui.kaydetButon.clicked.connect(self.butonKaydetTiklandi)
        self.ui.silButon.clicked.connect(self.sil)

    def formYukle(self):
        self.ui.eklenenlerTablo.clear()
        self.ui.eklenenlerTablo.setColumnCount(7)
        self.ui.eklenenlerTablo.setHorizontalHeaderLabels(("Urun NO", "Ad-soyad", "Telefon NO", "Esya", "Parca", "Yapilacaklar", "Fiyat"))
        self.ui.eklenenlerTablo.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch)

        db = sql.connect("bilgiler.db")
        cur = db.cursor()
        sorgu = "Select * from TBilgiler"
        cur.execute(sorgu)

        satirlar = cur.fetchall()

        self.ui.eklenenlerTablo.setRowCount(len(satirlar))

        for satirIndeks, satirVeri in enumerate(satirlar):
            for sutunIndeks, sutunVeri in enumerate(satirVeri):
                self.ui.eklenenlerTablo.setItem(satirIndeks, sutunIndeks, QTableWidgetItem(str(sutunVeri)))

    def butonKaydetTiklandi(self):
        urunno = self.ui.urunNoGiris.toPlainText()
        alacakkisiadsoyad = self.ui.urunNoGiris_2.toPlainText()
        telno = self.ui.telNoGiris.toPlainText()
        esya = self.ui.esyaGiris.toPlainText()
        parca = self.ui.parcaGiris.toPlainText()
        yapilacaklar = self.ui.yapilacaklarGiris.toPlainText()
        fiyat = self.ui.fiyatGiris.toPlainText()

        try:
            self.baglanti = sql.connect("bilgiler.db")
            self.c = self.baglanti.cursor()
            self.c.execute("INSERT INTO TBilgiler Values(?, ?, ?, ?, ?, ?, ?)", (urunno, alacakkisiadsoyad, telno, esya, parca, yapilacaklar, fiyat))
            self.baglanti.commit()
            self.c.close()
            print("Başarılı", "bilgiler başarıyla gönderildi")

        except:
            print("Hata", "Hata !!!!!!")

    def sil(self):
        uruno = self.ui.urunNoGiris.toPlainText()

        
        self.baglanti = sql.connect("bilgiler.db")
        self.c = self.baglanti.cursor()
        self.c.execute("DELETE FROM TBilgiler WHERE urunno = ?", (uruno,))
        self.baglanti.commit()
        self.c.close()
        self.baglanti.close()
        print("Urun silindi")

        self.sil()
        self.formYukle()

def app():
    app = QtWidgets.QApplication(sys.argv)
    win = Window()
    win.show()
    sys.exit(app.exec_())

app()

I think the problem is in this code:
```
def sil(self):
uruno = self.ui.urunNoGiris.toPlainText()

    self.baglanti = sql.connect("bilgiler.db")
    self.c = self.baglanti.cursor()
    self.c.execute("DELETE FROM TBilgiler WHERE urunno = ?", (uruno,))
    self.baglanti.commit()
    self.c.close()
    self.baglanti.close()
    print("Urun silindi")

    self.sil()
    self.formYukle()

[JonB]

@SpeeDEV
You use the Python sqlite3 library for all your data access. Wouldn't your question best be directed there, I don't see it's to do with Qt?

Would it be an idea to print out what is actually in uruno = self.ui.urunNoGiris.toPlainText()?

[SGaist]

Hi,

Did you check that your database calls are successful ?
Did you also consider using Qt's SQL module ?