Module ui.control.login

Login Controller class

"""
Login Controller class
"""

from lib.layer.security import SecurityLayer
from lib.model.employee import Employee
from ui import store
from ui.control import Controller
from ui.control.database import DatabaseController
from ui.window.login import LoginWindow


class LoginController(Controller):
    """
    Manages login
    """

    def __init__(self):
        """
        Uses Login Window
        """
        super().__init__(LoginWindow({
            'submit': self.login
        }))

    def login(self, username, password):
        """
        If authentication is successful, the database window is spawned

        :param username: str
        :param password: str
        :return: None
        """
        if not self.view.validate():
            return

        try:
            int(username)
        except ValueError:
            self.view.show_error('Invalid Employee ID', 'Please ensure '
                                                        'your ID is entered in correctly.')
            return

        authenticated = Employee.authenticate(username, password)
        if authenticated is not None:
            store.SECURITY_LAYER = SecurityLayer(authenticated)
            print("Logged in as user ID", authenticated.id)
            self.view.destroy()
            DatabaseController().show()
        else:
            self.view.show_error(title='Error', message='Credentials incorrect!')

Classes

class LoginController

Manages login

Uses Login Window

Expand source code

class LoginController(Controller):
    """
    Manages login
    """

    def __init__(self):
        """
        Uses Login Window
        """
        super().__init__(LoginWindow({
            'submit': self.login
        }))

    def login(self, username, password):
        """
        If authentication is successful, the database window is spawned

        :param username: str
        :param password: str
        :return: None
        """
        if not self.view.validate():
            return

        try:
            int(username)
        except ValueError:
            self.view.show_error('Invalid Employee ID', 'Please ensure '
                                                        'your ID is entered in correctly.')
            return

        authenticated = Employee.authenticate(username, password)
        if authenticated is not None:
            store.SECURITY_LAYER = SecurityLayer(authenticated)
            print("Logged in as user ID", authenticated.id)
            self.view.destroy()
            DatabaseController().show()
        else:
            self.view.show_error(title='Error', message='Credentials incorrect!')

Ancestors

• Controller

Methods

def login(self, username, password)

If authentication is successful, the database window is spawned

:param username: str :param password: str :return: None

Expand source code

def login(self, username, password):
    """
    If authentication is successful, the database window is spawned

    :param username: str
    :param password: str
    :return: None
    """
    if not self.view.validate():
        return

    try:
        int(username)
    except ValueError:
        self.view.show_error('Invalid Employee ID', 'Please ensure '
                                                    'your ID is entered in correctly.')
        return

    authenticated = Employee.authenticate(username, password)
    if authenticated is not None:
        store.SECURITY_LAYER = SecurityLayer(authenticated)
        print("Logged in as user ID", authenticated.id)
        self.view.destroy()
        DatabaseController().show()
    else:
        self.view.show_error(title='Error', message='Credentials incorrect!')

Inherited members

• Controller:
  • show