def add_post(cls, image_url, username):
user = User.check_username(username) # 返回一个user实例
post = Post(image_url=image_url, user_id=user.id)
session.add(post)
session.commit()
post_id = post.id
session.close()
return post_id
def add_post(cls, image_url, username):
user = User.check_username(username) # 返回user实例
post = Post(image_url=image_url, user_id=user.id)
session.add(post)
session.commit()
session.close()
# backref="posts"原理如下
#图片实例.user===>拿到对应的user实例
#用户实例.posts===>拿到对应的posts（图片）实例
def add_post(cls, title, content, image_url, thumbnail_url, username,
posttype_id):
user = User.check_username(username) #返回 user实例
post = Post(title=title,
content=content,
image_url=image_url,
thumbnail_url=thumbnail_url,
user_id=user.id,
posttype_id=posttype_id)
session.add(post)
session.commit()
session.close()
def add_user(cls, username, password, **kwargs):
user = User(username=username, password=password, **kwargs)
session.add(user)
session.commit()
session.close()