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[英]Flask-SQLAlchemy. AttributeError: module '<…>.db' has no attribute 'Model'
[英]why does my flask app give this response “class User(db.model): AttributeError: 'SQLAlchemy' object has no attribute 'model'”?
检查我一直在工作的以下代码。 我遇到的问题是我的SQLAlchemy缺少模型:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://postgres:password@localhost/flask-movie'
db = SQLAlchemy(app)
class User(db.model):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(80), unique=True, nullable=False)
email = db.Column(db.String(120), unique=True, nullable=False)
def __init__(self, username, email):
self.username = username
self.email = email
def __repr__(self):
return '<User %r>' % self.username
你的类定义应该有以大写字母开头的model
,如下所示:
class User(db.Model):
# ...
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