本文介绍了续集,Statement(where)中的Statement(where)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试2个小时,以解决不是一个小问题。
我正在使用生成的yeoman Angular-fullstack应用程序。
I'm trying for 2 hours to resolve a little problem which is not one.I'm on an generated yeoman Angular-fullstack App.
我想用以下代码编写此代码:
I want to write this code with sequelize:
SELECT *
FROM demand
WHERE city_id NOT IN (
SELECT city_id
FROM demand
WHERE user_id=req.params.user_id)
我还没有以下代码,但这行不通。我只得到[]
I have yet the following code but that doesn't work. I get only []
export function getCity(req, res) {
return Demand.findAll({
where: {
city_id:{ $notIn: Demand.findAll({
attributes: ['city_id'],
where: {
user_id: req.params.user_id,
}
})}
}
})
.then(handleEntityNotFound(res))
.then(respondWithResult(res))
.catch(handleError(res));
}
您有任何线索吗?
谢谢。
Have you a clue?Thank you.
推荐答案
我没有找到一个很好的解决方案:我终于用查询写了信。
I have not found a nice solution: I have finally wrote with query.
export function showDemandArtistNoUser(req, res) {
return db.sequelize.query('SELECT * FROM demands WHERE city_id NOT IN (SELECT city_id FROM demands WHERE user_id='+req.params.user_id+')', { type: db.sequelize.QueryTypes.SELECT })
.then(handleEntityNotFound(res))
.then(respondWithResult(res))
.catch(handleError(res));
}
使用我的角度全栈,我必须在页面上添加:
And with my angular-fullstack, i have to add on my page:
import db from '../../sqldb';
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