Стиль ячейки

    Import sys
from PyQt5 import QtCore, QtGui, QtSql, QtWidgets
#import sportsconnection
 
 
def initializeModel(model):
    model.setTable('hierarhy')
    model.setEditStrategy(QtSql.QSqlTableModel.OnFieldChange)
    model.select()
 
 
def createView(title, model):
    view = QtWidgets.QTableView()
    view.setModel(model)
    view.setWindowTitle(title)
    view.setStyleSheet('background: white')
    return view
 
 
def addrow():
    print
    model.rowCount()
    ret = model.insertRows(model.rowCount(), 1)
    print
    ret
 
 
def findrow(i):
    delrow = i.row()
 
 
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    db = QtSql.QSqlDatabase.addDatabase('QSQLITE')
    db.setDatabaseName('/opt/task')
    model = QtSql.QSqlTableModel()
 
    delrow = -1
 
    initializeModel(model)
 
    view1 = createView("1", model)
    view1.clicked.connect(findrow)
 
    stm = QtSql.QSqlQueryModel()
    stm.setQuery("SELECT * FROM hierarhy")
    #for stm.record(row) not None
    state = stm.record(1).value("M1")
    square = QtWidgets.QFrame(state)
    if state == 1:
       square.setStyleSheet('background: red')
 
    dlg = QtWidgets.QDialog()
    layout = QtWidgets.QVBoxLayout()
    layout.addWidget(view1)
 
    button = QtWidgets.QPushButton("Добавить")
    button.clicked.connect(addrow)
    layout.addWidget(button)
 
    btn1 = QtWidgets.QPushButton("Удалить")
    btn1.clicked.connect(lambda: model.removeRow(view1.currentIndex().row()))
    layout.addWidget(btn1)
 
    dlg.setLayout(layout)
    dlg.setWindowTitle("Тестовая база")
    dlg.resize(1024, 768)
    dlg.show()
    sys.exit(app.exec_())

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtSql     import *
from PyQt5.QtCore    import *
from PyQt5.QtGui     import *
 
class Model(QSqlTableModel):
  def data(self, index, role):
    if (role == Qt.BackgroundRole):
      if (index.column() == 2):
        if super().data(self.index(index.row(), 1)) == 1:
          return QBrush(Qt.red)
    return super().data(index, role)
 
app = QApplication(sys.argv)
db = QSqlDatabase.addDatabase("QSQLITE")
db.setDatabaseName(":memory:")
db.open()
query = QSqlQuery()
query.exec_("CREATE TABLE table1 (id INTEGER, M1 INTEGER, M2 INTEGER);")
query.exec_("INSERT INTO table1 (id, M1, M2) VALUES (1, 1, 1);")
query.exec_("INSERT INTO table1 (id, M1, M2) VALUES (2, 2, 2);")
model = Model()
model.setTable("table1")
model.select()
window = QTableView()
window.setModel(model)
window.show()
sys.exit(app.exec_())