python - Flask/Flask-蓝图中的MySQL访问数据库

Question

我真的很难让这个工作，我希望你能帮助我。

我的项目如下所示：

文件夹结构

/app
    /auth
        views.py
    /user
        views.py
    __init__.py
    config.py
run.py

run.py

from app import create_app

app = create_app()

app/__init__.py

（处理应用程序的启动）

from .auth.views import app as app_auth
from .user.views import app as app_user
from flask import Flask
from flask_mysqldb import MySQL
from .config import Config

db = MySQL()  # database instance


def create_app(config_class=Config):
    app = Flask(__name__)
    app.config.from_object(config_class)

    # force database config
    app.config['MYSQL_CURSORCLASS'] = 'DictCursor'

    with app.app_context():
        # init db
        db.init_app(app)

    # register blueprints
    app.register_blueprint(app_auth, url_prefix="/auth")
    app.register_blueprint(app_user, url_prefix="/u")
    return app

app/user/views.py

（示例视图）

from flask import Blueprint, render_template, request, current_app
app = Blueprint('user', __name__)

######################################################
# HOW CAN I ACCESS THE DB IN THIS FILE?
######################################################

@app.route("/")
def sample():

    return "nothing to display yet"

简而言之：我怎样才能访问数据库views.py？

此致