Making a TableView item function like QComboBox instead of a QLineEdit in PyQT

I wrote a class that makes a window, part of this class is a function dynamic_table_view that creates a TableView widget with a possibility to view data and edit it right in that same window:

def dynamic_table_view(self, cur, table_name, edit=True, add=True, layout=None):
    if layout is None:
        layout = self.main_layout
    df = pd.read_sql(f"SELECT * FROM {table_name}", conn)
    col_types = parse_types(cur, table_name)
    model = QStandardItemModel(df.shape[0], df.shape[1])
    model.setHorizontalHeaderLabels(list(df.columns))
    for row in range(df.shape[0]):
        for col in range(df.shape[1]):
            print(col, df.columns, df.columns[col])
            item = QStandardItem(str(df.iat[row, col]))
            if edit and df.columns[col] != 'id':
                item.setEditable(True)
            else:
                item.setEditable(False)
            model.setItem(row, col, item)
    
    table_view = QTableView()
    table_view.setModel(model)
    
    if edit:
        table_view.setEditTriggers(QAbstractItemView.EditTrigger.DoubleClicked | QAbstractItemView.EditTrigger.SelectedClicked)
        table_view.setSelectionBehavior(QAbstractItemView.SelectionBehavior.SelectRows)
        table_view.setSelectionMode(QAbstractItemView.SelectionMode.SingleSelection)
         
    table_view.horizontalHeader().setSectionResizeMode(QHeaderView.ResizeMode.Stretch)
    self.add_widget(table_view, layout)
    
    #changing selected item onclick
    def on_item_changed(item):
        row = item.row()
        col = item.column()
        new_value = item.text()
        column_name = df.columns[col]
        row_id = df.iloc[row]["id"]
        if col_types[column_name] == "integer":
            query = f"UPDATE {table_name} SET {column_name} = {new_value} WHERE id = {row_id}"
        else:
            query = f"UPDATE {table_name} SET {column_name} = '{new_value}' WHERE id = {row_id}"
        execute_query(cur, query)
    model.itemChanged.connect(on_item_changed)

Basically, I need to make all cells in a specific column to act like QComboBox. I've read that I'd need to use a delegate for that, but I don't really understand how to implement it. From what I've seen, it could be done with creating a separate class for the delegate or overriding it somehow, but I was wondering if there's a way to make it shorter because I would only need that to be created in that one specific piece of code (for example, I wouldn't create a class for creating windows if I only needed to write one instance of that code).