QSortFilterProxyModel(AttributeError: 'X' object has no attribute 'Y')

[adrian88888888]

Hi, my objective was to make a treeview with data on it and to be able to sort the data:

So far I managed to:
1-connect to a DataBase
2-make a model using the database
3-dropping the model inside a warper so it can be sorted (QSortFilterProxyModel)
4-then I filtered the model using a regular expression....and here is the problem, i get an error:

AttributeError: 'PySide2.QtCore.QSortFilterProxyModel' object has no attribute 'setFilterRegExpression'

This is the line of code that gives the error:

self.ui.model_sorted.setFilterRegExpression(QRegularExpression("(red|blue)"))

I tried stuff but so far i didn't get the solution, i think a self is missing somewhere or that it has something to do with private and public methods/classes, but i'm not sure

.---------------------------------------------------------------

the code(i dont think its necessary to read, but just in case):

def Starting_DataBase(self):
        #CONNECTING TO THE DATABASE:
        self.ui.db = QSqlDatabase.addDatabase('QSQLITE')
        self.ui.db.setDatabaseName('The directory\DataBase.db')
        self.ui.db.open()
        #MAKING THE MODEL USING THE DATABASE:
        self.ui.model = QSqlTableModel()
        self.ui.model.setTable('Table_Name')
        self.ui.model.setEditStrategy(QSqlTableModel.OnManualSubmit)
        self.ui.model.select()
        #PUTTING THE MODEL INSIDE A WARPER THAT CAN SORT AND FILTER IT:
        self.ui.model_sorted = QSortFilterProxyModel()
        self.ui.model_sorted.setSourceModel(self.ui.model)
        self.ui.model_sorted.setFilterKeyColumn(1) #ESTE NO SE QUE HACE
        self.ui.model_sorted.setFilterRegExpression(QRegularExpression("(red|blue)"))
        #MAKING THE RELATIONSHIP BETWEEN THE TABLEVIEW AND THE MODEL_SORTED:
        self.ui.demosTree.setModel(self.ui.model_sorted)

[JonB]

@adrian88888888 said in QSortFilterProxyModel(AttributeError: 'X' object has no attribute 'Y'):

setFilterRegExpression

As per docs, it's setFilterRegularExpression().

[adrian88888888]

How did you noticed?, those things escape from me, thanks!!!!!!

[JonB]

@adrian88888888
I'm afraid that getting the exact right spelling of functions is a requirement for writing code :)

Now you know that in Python a message like

AttributeError: 'PySide2.QtCore.QSortFilterProxyModel' object has no attribute 'setFilterRegExpression'

is what you get for a method of a class does not exist. It will refer to a method (and, I think, a variable) as an "attribute" of the class, because that's how Python works.

[adrian88888888]

@JonB oh, i see, I have a new mental note now, newbie problems