如何修复'flask db.create_all()错误'?

时间:2019-04-11 12:28:36

标签: python flask flask-sqlalchemy

我具有带有创建应用程序功能的flask初始化。我为我的单位创建测试文件。在unitest类中,添加setUp函数是我创建新的flask应用程序并添加上下文,将上下文推送到它。接下来,我使用create_all()函数创建测试数据库,并且在我开始测试文件的地方,出现下一个错误:

in _execute_for_all_tables op(bind=self.get_engine(app, bind), **extra) 

TypeError:create_all()得到了意外的关键字参数'forms' 我没有模型或任何模型上的“表单”文件或变量。

在将该错误放置在flask_sqlalchemy / init .py MetaData(bind = None)中之前,可能有帮助。


from flask import Flask
from config import Config
from blocker_application.database import db
from flask_migrate import Migrate
from flask_login import LoginManager
from flask_moment import Moment

migrate = Migrate()
login = LoginManager()
login.login_view = 'user.login'
moment = Moment()


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

    db.init_app(app)
    migrate.init_app(app, db)
    login.init_app(app)
    moment.init_app(app)

    from blocker_application.main.routes import bp_main
    from blocker_application.errors.handlers import bp_error
    from blocker_application.reports.routes import bp_reports
    from blocker_application.user.routes import bp_user
    from blocker_application.applications.routes import bp_applications
    app.register_blueprint(bp_main)
    app.register_blueprint(bp_error)
    app.register_blueprint(bp_reports, url_prefix='/reports')
    app.register_blueprint(bp_user, url_prefix='/user')
    app.register_blueprint(bp_applications, url_prefix='/applications')


    return app

from blocker_application import models
________________________________________________________________________

/config.py

import os

basedir = os.path.abspath(os.path.dirname(__file__))


class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'not realy finish secret key configuration'
    SQLALCHEMY_DATABASE_URI = 'mysql://some_database'
    SQLALCHEMY_TRACK_MODIFICATIONS = False

class TestConfig(Config):
    TESTING = True
    SQLALCHEMY_BINDS = {'test': 'mysql://some_database_test'}
______________________________________________________________________

/tests.py

import unittest
from blocker_application import create_app, db
from blocker_application import models
from config import TestConfig


class UserModelCase(unittest.TestCase):
    def setUp(self):
        self.app = create_app(TestConfig)
        self.app_context = self.app.app_context()
        self.app_context.push()
        db.create_all(bind='test')

    def tearDown(self):
        db.session.remove()
        db.drop_all(bind='test')
        self.app_context.pop()

    def test_password(self):
        u = models.User(username='Mark')
        u.set_password('Mark')
        self.assertTrue(u.check_password('Mark'))
        self.assertFalse(u.check_password('Tony'))

if __name__ == '__main__':
    unittest.main(verbosity=2)

1 个答案:

答案 0 :(得分:0)

我找到了决定。重新创建虚拟环境后,单元测试可以正常工作。