nHfQzUqA

1$ flask db init 
2     
3$ flask db migrate 
4     
5psycopg2.errors.UndefinedColumn: column "username" does not exist 
6     
7root@cb14962d3dff:/home/site/wwwroot# flask db init
8Usage: flask [OPTIONS] COMMAND [ARGS]...
9Try "flask --help" for help.
10
11Error: No such command "db". 
12     
13class Config(object):
14    # ...
15    SECRET_KEY = os.environ.get('SECRET_KEY') or os.urandom(12)
16    USERNAME = os.environ.get('DB_USERNAME')
17    PASSWORD = os.environ.get('DB_PASSWORD')
18    URL = os.environ.get('DB_URL')
19    if USERNAME:
20        SQLALCHEMY_DATABASE_URI = 'postgresql+psycopg2://' + USERNAME + ':' + PASSWORD  + '@' + URL + ':5432/postgres'
21    else:
22        SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'app.db')
23    SQLALCHEMY_TRACK_MODIFICATIONS = False
24
25server = Flask(__name__)
26server.config.from_object(Config)
27
28db = SQLAlchemy(server)
29migrate = Migrate(server, db)