How can I amend an object of my model by double clicking on it in the view

Question

I have a QTableView displaying a QAbstractTableModel which represent my list of objects. One attribute of my object is a boolean (isExpired), I just want to modify this attribute when double clicking on the specific cell in the table view. So on myTableView If a double click on the cell in the column isExpired of the row corresponding to my object number 1, I want this attribute to go from False to True.

import sys
import os
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QTableView
from PyQt5.QtCore import QAbstractTableModel, Qt
import pandas as pd

class Test:
def __init__(self):
    self.id = ""
    self.isExpired = ""

def toDataframe(self):
    return{
        'Id': self.id,
        'isExpired': self.isExpired}

class Tests:
def __init__(self):
    self.tests = []
    test1 = Test()
    test1.id = 1
    test1.isExpired = False
    self.tests.append(test1)

def toDataframe(self):
    tickets_df = pd.DataFrame.from_records([t.toDataframe() for t in self.tests])
    tickets_df = tickets_df[['Id', 'isExpired']]
    return tickets_df


class MyTableView(QTableView):
def __init__(self, *args):
    QTableView.__init__(self, *args)


# Table model
class TicketGUI(QAbstractTableModel):
def __init__(self):
    QAbstractTableModel.__init__(self)
    self.tickets = Tests()
    data = self.tickets.toDataframe()
    self._data = data

def rowCount(self, parent=None):
    return self._data.shape[0]

def columnCount(self, parent=None):
    return self._data.shape[1]

def data(self, index, role=Qt.DisplayRole):
    if index.isValid():
        if role == Qt.DisplayRole:
            return str(self._data.iloc[index.row(), index.column()])

def headerData(self, col, orientation, role=Qt.DisplayRole):
    if orientation == Qt.Horizontal and role == Qt.DisplayRole:
        return self._data.columns[col]
    return None

if __name__ == 'main':
app = QApplication(sys.argv)
model = TicketGUI()
view = MyTableView()
view.setModel(model)
view.show()
sys.exit(app.exec_())

Hi eyllanesc, I edited my question with a minimal reproducible example, thank you — alaintk

TheKewlStore TheKewlStore · Accepted Answer · 2019-08-20T15:05:28

QTableView (which inherits from QAbstractItemView) has the signal doubleClicked, which is emitted when a cell in the table is double clicked, and passes the QModelIndex that was clicked. https://doc.qt.io/qt-5/qabstractitemview.html#doubleClicked

You should connect this signal of your tableView to a function in your model, and if the column with your boolean field matches the index, toggle it for the corresponding row in your models' data.

How can I amend an object of my model by double clicking on it in the view

1 Answers