燒瓶安全拋出操作錯誤（沒有這樣的表）

Question

我試圖用瓶，安全性比在燒瓶SEC的文件中給出的示例更有組織的申請。

使用格式：

\proj 
    __init.py__ 
    views.py 
    models.py 
    config.py 

我有快速啓動代碼models.py設置如下。據我所知，這是一個非常精確的副本。

from proj import db 

    ##################################### USERS AND ROLES ############################################ 
    roles_users = db.Table('roles_users', 
       db.Column('user_id', db.Integer(), db.ForeignKey('user.id')), 
       db.Column('role_id', db.Integer(), db.ForeignKey('role.id'))) 

    class Role(db.Model, RoleMixin): 
     id = db.Column(db.Integer(), primary_key=True) 
     name = db.Column(db.String(80), unique=True) 
     description = db.Column(db.String(250)) 

    class User(db.Model, UserMixin): 
     id = db.Column(db.Integer(), primary_key=True) 
     email = db.Column(db.String(255), unique=True) 
     password = db.Column(db.String(255)) 
     active = db.Column(db.Boolean()) 
     confirmed_at = db.Column(db.DateTime()) 
     roles = db.relationship('Role', secondary=roles_users, backref=db.backref('users'), lazy="dynamic") 

    #Setup Flask security 
    user_datastore = SQLAlchemyUserDatastore(db, User, Role) 
    security = Security(app, user_datastore) 

然而當一切都說過和做過我得到這個回溯：

16:42:04 web.1 | Traceback (most recent call last): 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/gunicorn/workers/sync.py", line 126, in handle_request 
16:42:04 web.1 |  respiter = self.wsgi(environ, resp.start_response) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1836, in __call__ 
16:42:04 web.1 |  return self.wsgi_app(environ, start_response) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1820, in wsgi_app 
16:42:04 web.1 |  response = self.make_response(self.handle_exception(e)) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1403, in handle_exception 
16:42:04 web.1 |  reraise(exc_type, exc_value, tb) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1817, in wsgi_app 
16:42:04 web.1 |  response = self.full_dispatch_request() 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1477, in full_dispatch_request 
16:42:04 web.1 |  rv = self.handle_user_exception(e) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1381, in handle_user_exception 
16:42:04 web.1 |  reraise(exc_type, exc_value, tb) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1475, in full_dispatch_request 
16:42:04 web.1 |  rv = self.dispatch_request() 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask/app.py", line 1461, in dispatch_request 
16:42:04 web.1 |  return self.view_functions[rule.endpoint](**req.view_args) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask_security/views.py", line 116, in register 
16:42:04 web.1 |  if form.validate_on_submit(): 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask_wtf/form.py", line 156, in validate_on_submit 
16:42:04 web.1 |  return self.is_submitted() and self.validate() 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/wtforms/form.py", line 271, in validate 
16:42:04 web.1 |  return super(Form, self).validate(extra) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/wtforms/form.py", line 130, in validate 
16:42:04 web.1 |  if not field.validate(self, extra): 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/wtforms/fields/core.py", line 175, in validate 
16:42:04 web.1 |  stop_validation = self._run_validation_chain(form, chain) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/wtforms/fields/core.py", line 195, in _run_validation_chain 
16:42:04 web.1 |  validator(form, self) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask_security/forms.py", line 81, in unique_user_email 
16:42:04 web.1 |  if _datastore.find_user(email=field.data) is not None: 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/flask_security/datastore.py", line 199, in find_user 
16:42:04 web.1 |  return self.user_model.query.filter_by(**kwargs).first() 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2278, in first 
16:42:04 web.1 |  ret = list(self[0:1]) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2145, in __getitem__ 
16:42:04 web.1 |  return list(res) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2349, in __iter__ 
16:42:04 web.1 |  return self._execute_and_instances(context) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2364, in _execute_and_instances 
16:42:04 web.1 |  result = conn.execute(querycontext.statement, self._params) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 662, in execute 
16:42:04 web.1 |  params) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 761, in _execute_clauseelement 
16:42:04 web.1 |  compiled_sql, distilled_params 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 874, in _execute_context 
16:42:04 web.1 |  context) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1024, in _handle_dbapi_exception 
16:42:04 web.1 |  exc_info 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 195, in raise_from_cause 
16:42:04 web.1 |  reraise(type(exception), exception, tb=exc_tb) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 867, in _execute_context 
16:42:04 web.1 |  context) 
16:42:04 web.1 | File "/Users/user/programming/proj/env/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 324, in do_execute 
16:42:04 web.1 |  cursor.execute(statement, parameters) 
16:42:04 web.1 | OperationalError: (OperationalError) no such table: user u'SELECT user.id AS user_id, user.email AS user_email, user.password AS user_password, user.active AS user_active, user.confirmed_at AS user_confirmed_at \nFROM user \nWHERE user.email = ?\n LIMIT ? OFFSET ?' (u'user.@gmail.com', 1, 0) 

Answer 1

所以它說：「沒有這樣的表」。你有沒有檢查你真的有這個表和數據庫創建？

這樣寫： 「PIP安裝燒瓶遷移」

然後複製粘貼此腳本：

from flask import Flask 
from flask.ext.sqlalchemy import SQLAlchemy 
from flask.ext.script import Manager 
from flask.ext.migrate import Migrate, MigrateCommand 
from app.models import * 
from flask.ext.security import UserMixin, RoleMixin 



app = Flask(__name__) 
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///app.db' 

db = SQLAlchemy(app) 
migrate = Migrate(app, db) 

manager = Manager(app) 
manager.add_command('db', MigrateCommand) 



roles_users = db.Table('roles_users', 
         db.Column('user_id', db.Integer(), db.ForeignKey('users.id')), 
         db.Column('role_id', db.Integer(), db.ForeignKey('roles.id'))) 


class Role(db.Model, RoleMixin): 

    __tablename__ = "roles" 

    id = db.Column(db.Integer(), primary_key=True) 
    name = db.Column(db.String(80), unique=True) 
    description = db.Column(db.String(255)) 


class User(db.Model, UserMixin): 

    __tablename__ = "users" 

    id = db.Column(db.Integer, primary_key=True) 
    email = db.Column(db.String(255), unique=True) 
    password = db.Column(db.String(120)) 
    active = db.Column(db.Boolean()) 
    last_login_at = db.Column(db.DateTime()) 
    current_login_at = db.Column(db.DateTime()) 
    last_login_ip = db.Column(db.String(100)) 
    confirmed_at = db.Column(db.DateTime()) 
    current_login_ip = db.Column(db.String(100)) 
    login_count = db.Column(db.Integer) 
    roles = db.relationship('Role', secondary=roles_users, 
          backref=db.backref('users', lazy='dynamic')) 
    connections = db.relationship('Connection', 
            backref=db.backref('user', lazy='joined'), cascade="all") 

    def __str__(self): 
     return '<User id=%s email=%s>' % (self.id, self.email) 


class Connection(db.Model): 

    __tablename__ = "connections" 

    id = db.Column(db.Integer, primary_key=True) 
    user_id = db.Column(db.Integer, db.ForeignKey('users.id')) 
    provider_id = db.Column(db.String(255)) 
    provider_user_id = db.Column(db.String(255)) 
    access_token = db.Column(db.String(255)) 
    secret = db.Column(db.String(255)) 
    display_name = db.Column(db.String(255)) 
    full_name = db.Column(db.String(255)) 
    profile_url = db.Column(db.String(512)) 
    image_url = db.Column(db.String(512)) 
    rank = db.Column(db.Integer) 



if __name__ == '__main__': 
    manager.run() 

的寫後：

蟒蛇db_migrate DB初始化

蟒蛇db_migrate數據庫遷移

蟒蛇db_migrate DB升級

然後用「納米app.db」檢查它，你應該看到創建的數據庫和表。