def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
# Setup data
self.contacts = Contacts()
self.contacts.init_db()
# Setup GUI
self.setupUi(self)
self.insert_button.clicked.connect(self.insert)
self.search_button.clicked.connect(self.search)
self.viewall_button.clicked.connect(self.view_all)
