我正在尝试创建一个包含用户和攀登信息的数据库,其中从用户到已完成攀登的一对多关系。
class Climb(db.Model):
id = db.Column(db.Integer, primary_key=True)
date = db.Column(db.DateTime)
name = db.Column(db.String(64))
flash = db.Column(db.Boolean)
notes = db.Column(db.Text)
type_of_climb = db.Column(db.String(32))
difficulty = db.Column(db.String(5))
location = db.Column(db.String(64))
favorite = db.Column(db.Boolean)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
def __init__(self, climb_date, name, flash, notes, type_of_climb, difficulty, location, favorite, user_id):
set_date = datetime.strptime(climb_date, '%Y%m%d').date()
self.date = set_date
self.name = name
self.flash = flash
self.notes = notes
self.type_of_climb = type_of_climb
self.difficulty = difficulty
self.location = location
self.favorite = favorite
self.user_id = user_id
我正在尝试使用PyCharm中的Python控制台测试数据库。我已经成功创建了一个用户,现在正试图将攀登信息添加到数据库中,但是当我使用以下命令时,一直出现“TypeError:需要整数”错误提示:
>>> from flask import Flask
>>> from app import app, db
>>> db.create_all()
>>> from app import User, Climb
>>> c = Climb('2015-05-02', 'Climb so high', 1, 'Made it happen', 'Trad', '5.8', 'Nepal', 0, 1)
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "<string>", line 4, in __init__
File "/home/logan/Desktop/DEV/git/Climb-On/climb-on-api/flask/local/lib/python2.7/site-packages/sqlalchemy/orm/state.py", line 269, in _initialize_instance
return manager.original_init(*mixed[1:], **kwargs)
File "/home/logan/Desktop/DEV/git/Climb-On/climb-on-api/app.py", line 50, in __init__
self.flash = flash
TypeError: an integer is required
我完全不明白为什么会出现这个错误(flash是第三个参数,而按我的记录1是一个整数)。
非常感谢您的帮助。
self.flash = True
,会发生什么? - rafaelcclimb_date
的日期格式不正确。您正在传递'%Y-%m-%d'
并期望'%Y%m%d'
。 - Haleemur Aliflask
、flask-sqlalchemy
和sqlalchemy
的版本以协助调试。谢谢。 - Haleemur Ali