def login_check(self):
        type = self.usertype.get()
        name = self.username.get()
        secret = self.password.get()
        sql = 'select * from user where user.username="******" and user.password="******" and user.usertype="'+type+'"'

        db_fetch = sql_conn(sql)

        if len(db_fetch) != 0:
            GlobalVar.login_id = name
            self.page.destroy()
            if type == 'student':
                StudentPage(self.root)
            elif type == 'teacher':
                TeacherPage(self.root)
            elif type == 'admin':
                AdminPage(self.root)
        else:
            showinfo(title='Login error', message='ID or password incorrect')
 def enterAdminPage(self):
     self.adminPageStateData = AdminPage(self, self.fsm)
     self.adminPageStateData.load()
     self.adminPageStateData.enter()