Python 使用flask sqlalchemy.exc.IntegrityError:（sqlite3.IntegrityError）唯一约束时出错
我对这个很陌生，我只是在试用烧瓶，我似乎无法用sqlalchemy解决这个问题Python 使用flask sqlalchemy.exc.IntegrityError:（sqlite3.IntegrityError）唯一约束时出错,python,sqlalchemy,Python,Sqlalchemy,我对这个很陌生，我只是在试用烧瓶，我似乎无法用sqlalchemy解决这个问题 sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) UNIQUE constraint failed: Login Info.username [SQL: 'INSERT INTO "Login Info" (username, password) VALUES (?, ?)'] [parameters: ('audyappy', 'secret')]
sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) UNIQUE constraint
failed: Login Info.username [SQL: 'INSERT INTO "Login Info" (username,
password) VALUES (?, ?)'] [parameters: ('audyappy', 'secret')] (Background on
this error at: http://sqlalche.me/e/gkpj)
@app.route('/register', methods=['GET',"POST"])
def register():
if request.method == "POST":
newUser = Login_Info(username=request.form['username'], password=request.form['password'])
session.add(newUser)
flash('You have registered successfully')
session.commit()
return redirect(url_for('login'))
else:
return render_template('register.html')
class Login_Info(Base):
__tablename__ = 'Login Info'
id = Column(Integer, primary_key=True)
username = Column(String, nullable=False, unique=True)
password = Column(String, nullable=False)
我似乎找不到这个问题，所以如果你能帮助我，那就太好了。谢谢 表wh的username列上有一个unicity约束