#StackBounty: #python-3.x #pyqt5 #filtering #qtableview #qsqltablemodel How to create filter rows for Qtableview with using QSqlTableMo…

Bounty: 50

Is it possible to create row filter for Qtableview with QSqlTableModel.
I am sing " QSqlTableModel" to show the data on Qtableview from SQLite thats working. But i am trying to filter rows. When i am executing the code i am getting below error is

line 44, in
for row in range(self.model.rowCount()) AttributeError: ‘QSqlTableModel’ object has no attribute ‘item’

I Tried but did not get any solution. Is it possible to make this with QSqlTableModel?
i want to show filtered items from tableview when i clicked on any of the columns of Qtableview. I am using Qtableview with QSqlTableModel.

I want to do like shown in the image is
enter image description here

from PyQt5 import QtCore, QtGui, QtWidgets, QtSql
from PyQt5.QtSql import *


class myWindow(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super(myWindow, self).__init__(parent)
        self.centralwidget  = QtWidgets.QWidget(self)
        self.view           = QtWidgets.QTableView(self.centralwidget)

        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)

        self.gridLayout.addWidget(self.view, 1, 0, 1, 3)

        self.setCentralWidget(self.centralwidget)

       # self.model = QtGui.QStandardItemModel(self)

        db = QSqlDatabase.addDatabase("QSQLITE")
        db.setDatabaseName("model.db")
        db.open()

        self.model = QSqlTableModel(self)
        self.model.setTable("sheet")
        self.model.select()
        self.view.setModel(self.model)

        self.proxy = QtCore.QSortFilterProxyModel(self)
        self.proxy.setSourceModel(self.model)

        self.view.setModel(self.proxy)


        self.horizontalHeader = self.view.horizontalHeader()
        self.horizontalHeader.sectionClicked.connect(self.on_view_horizontalHeader_sectionClicked)

    @QtCore.pyqtSlot(int)
    def on_view_horizontalHeader_sectionClicked(self, logicalIndex):
        self.logicalIndex   = logicalIndex
        self.menuValues     = QtWidgets.QMenu(self)
        self.signalMapper   = QtCore.QSignalMapper(self)  

        valuesUnique = [    self.model.item(row, self.logicalIndex).text()
                            for row in range(self.model.rowCount())
                            ]

        actionAll = QtWidgets.QAction("All", self)
        actionAll.triggered.connect(self.on_actionAll_triggered)
        self.menuValues.addAction(actionAll)
        self.menuValues.addSeparator()


        for actionNumber, actionName in enumerate(sorted(list(set(valuesUnique)))):              
            action = QtWidgets.QAction(actionName, self)
            self.signalMapper.setMapping(action, actionNumber)  
            action.triggered.connect(self.signalMapper.map)  
            self.menuValues.addAction(action)

        self.signalMapper.mapped.connect(self.on_signalMapper_mapped)  

        headerPos = self.view.mapToGlobal(self.horizontalHeader.pos())        

        posY = headerPos.y() + self.horizontalHeader.height()
        posX = headerPos.x() + self.horizontalHeader.sectionPosition(self.logicalIndex)

        self.menuValues.exec_(QtCore.QPoint(posX, posY))

    @QtCore.pyqtSlot()
    def on_actionAll_triggered(self):
        filterColumn = self.logicalIndex
        filterString = QtCore.QRegExp(  "",
                                        QtCore.Qt.CaseInsensitive,
                                        QtCore.QRegExp.RegExp
                                        )

        self.proxy.setFilterRegExp(filterString)
        self.proxy.setFilterKeyColumn(filterColumn)

    @QtCore.pyqtSlot(int)
    def on_signalMapper_mapped(self, i):
        stringAction = self.signalMapper.mapping(i).text()
        filterColumn = self.logicalIndex
        filterString = QtCore.QRegExp(  stringAction,
                                        QtCore.Qt.CaseSensitive,
                                        QtCore.QRegExp.FixedString
                                        )

        self.proxy.setFilterRegExp(filterString)
        self.proxy.setFilterKeyColumn(filterColumn)


if __name__ == "__main__":
    import sys

    app  = QtWidgets.QApplication(sys.argv)
    main = myWindow()
    main.show()
    main.resize(400, 600)
    sys.exit(app.exec_())


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