def test_external_id_exists(self):
self.assertTrue(Plate.external_id_exists('Test plate 1'))
self.assertFalse(Plate.external_id_exists('This is a new name'))
def get(self):
new_name = self.get_argument('new-name')
status = 200 if Plate.external_id_exists(new_name) else 404
self.set_status(status)
self.finish()