I have a datatable which filters data by user id. This is my login function.

LoginScreen.py

def login(self):
    username = self.ids.username.text
    password = self.ids.password.text

    login_check = database_handler.check_username(username, password)
    if login_check:
        Snackbar(text="Login successful").open()
    else:
        Snackbar(text="invalid username/password").open()

database_handler.py

def get_entries():
    parent = // current logged in user id
    sql = "SELECT * FROM entrymonitoring WHERE parent_id = (SELECT parent FROM parent_mystudent WHERE parent = parent) ORDER BY `date` DESC LIMIT 6"
    cursor.execute(sql)
    results = cursor.fetchall()
    return results

My log in works and the get_entries works too if I write specific value to filter the rows I wanted to display. I’m totally noob, I don’t know how to get the current logged in user id. Do I need to store it like in django, we used session. But kivy is totally new to me, can someone help me how to get the it? Thank you in advance!