47 lines
1.8 KiB
Python
47 lines
1.8 KiB
Python
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from PySide6 import QtWidgets, QtSql
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class Data:
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def __init__(self):
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super(Data, self).__init__()
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def create_connection(self):
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db = QtSql.QSqlDatabase.addDatabase('QSQLITE')
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db.setDatabaseName('calc3d')
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if not db.open():
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QtWidgets.QMessageBox.critical(None, 'Error', 'Не найдена база данных калькулятора',
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'Cancel',
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QtWidgets.QMessageBox.Cancel)
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return False
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query = QtSql.QSqlQuery()
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query.exec("CREATE TABLE IF NOT EXISTS printers (ID integer primary key autoincrement,"
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"Printer_name VARCHAR(30) unique, Price_printer integer, Printer_power integer, kilowatt_price)")
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return True
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def execute_query_with_params(self, sql_query, query_values=None):
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query = QtSql.QSqlQuery()
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query.prepare(sql_query)
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if query_values is not None:
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for value in query_values:
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query.addBindValue(query_values)
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query.exec()
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def add_settings(self, kilowatt_price, ):
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pass
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def add_printer(self, printer_name, printer_power, price_printer):
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sql_query = "INSERT INTO printers (Printer_name, Printer_power, Price_printer) VALUES (?, ?, ?)"
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self.execute_query_with_params(sql_query, [printer_name, printer_power, price_printer])
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def edit_printer(self, id, printer_name, printer_power, price_printer):
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sql_query = "UPDATE printers SET Printer_name=?, Printer_power=?, Price_printer=? WHERE ID=?"
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self.execute_query_with_params(sql_query, [id, printer_name, printer_power, price_printer])
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def delete_printer(self, id):
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sql_query = "DELETE FROM printers WHERE ID=?"
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self.execute_query_with_params(sql_query, [id])
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