blocks|key|664648|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|664649|更新异步后，此方法不再起作用。|blockquote|664650|664651|664652|您不能在beforeUpdate中获取整个对象。您可以尝试执行此操作以获取id。var+id=+this.update.arguments[0]|offset|length|style|CODE|664653|entityMap^0|0|0|0|0|4|C|14|W|0^^$0|@$1|2|3|-4|4|5|6|N|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|O|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|P|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|Q|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|R|7|@$H|S|I|T|J|K]|$H|U|I|V|J|K]]|8|@]|9|$]]|$1|L|3|-4|4|5|6|W|7|@]|8|@]|9|$]]]|M|$]]

<blockquote>
 After the update of async, this method does not work anymore. 
</blockquote>

You can not get the whole object inside <code>beforeUpdate</code>. You can try this to get the id. 
<code>var id= this.update.arguments[0]</code>

blocks|key|2576209|text|为了扩展user3036010的建议，我最终创建了一个新策略，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2576210|在api/policies/propagateId.js中|offset|length|style|CODE|2576211|module.exports+=+function(req,+res,+next)+{
++++var+id+=+req.param('id');
++++if+(id+&&+req.body)+{
++++++++req.body.id+=+id;
++++}

++++next();
};|code-block|syntax|javascript|2576212|然后将api/config/policies.js文件设置为默认情况下将策略应用于所有控制器和操作：|2576213|module.exports.policies+=+{
++++'*':+'propagateId'
};|2576214|它的作用是强制在文档正文上设置id属性，这会使更新操作认为id是手动指定的。无论出于什么原因，在更新操作中都有一个代码块来检查这一点，如果没有手动指定id，它将从值中删除它。|2576215|这是一种滥用政策，但它似乎对我很好。如果你不想这样做，看起来就像每次你做一个update+API请求时在你的请求体中手动指定id应该也可以。|2576216|entityMap^0|0|1|R|0|0|3|M|0|0|F|2|T|2|23|2|0|1Q|2|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|15|8|@$D|16|E|17|F|G]|$D|18|E|19|F|G]|$D|1A|E|1B|F|G]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|V|$]]

To expand on what user3036010 suggested, I ended up creating a new policy like this:

In <code>api/policies/propagateId.js</code>:

<pre><code>module.exports = function(req, res, next) {
 var id = req.param('id');
 if (id &amp;&amp; req.body) {
 req.body.id = id;
 }

 next();
};
</code></pre>

Then set up your <code>api/config/policies.js</code> file to apply the policy by default to all controllers and actions:

<pre><code>module.exports.policies = {
 '*': 'propagateId'
};
</code></pre>

What this does is it forces the <code>id</code> property to be set on the document body, which tricks the update action into thinking that the <code>id</code> was manually specified. For whatever reason, there is a block of code in the update action that checks for this, and if the <code>id</code> is not manually specified it will remove it from the values.

This is sort of an abuse of policies, but it seems to work fine for me. If you don't want to do it this way, it looks like manually specifying <code>id</code> in your request body every time you make an update API request should work too.

blocks|key|3906873|text|我不知道为什么在这里的值对象中需要这个，但是你可以创建一个自定义策略，它将获取整个user对象并发送'next()‘回调进行更新；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3906874|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I'm not sure why you need this in the value object here, but you may create a custom policy that will get the whole user object and send in 'next()' callback to update;

blocks|key|127147|text|只需使用lodash扩展originalUser的值即可。或者对于这个用例，如果您使用node+bcrypt或其他什么，您总是可以检查密码是否已经被散列|type|unstyled|depth|inlineStyleRanges|entityRanges|data|127148|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Just use lodash to extend value with originalUser. Or for this use case you can always just check if the pasword is already hashed if you using node bcrypt or something

blocks|key|2576198|text|现在，只有当您在Update方法中发送password:+password时，它才会更新密码(散列和存储)，否则它只会更新提供的用户字段。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2576199|控制器(UserController.js)：|2576200|updateDisplayName:+function(req,+res)+{

var+userid+=+req.token;
var+newDisplayName+=+req.param('newdisplayname');

User.update({id:+userid},{displayname:+newDisplayName}).exec(function+afterwards(err,updated){

if+(err)+{
res.json(err);
}+else+{
res.json("Success");
}
});

},|code-block|syntax|javascript|2576201|型号(User.js)：|2576202|beforeUpdate:+function(values,+next)+{
if(values.password)+{
hashPassword(values,+next);
}+else+{
next();
}
},|2576203|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Now, only if you send password: password in the Update method, it will update the password (hash and store) else it will only update the provided user fields.

Controller(UserController.js): 

<pre><code>updateDisplayName: function(req, res) {

var userid = req.token;
var newDisplayName = req.param('newdisplayname');

User.update({id: userid},{displayname: newDisplayName}).exec(function afterwards(err,updated){

if (err) {
res.json(err);
} else {
res.json("Success");
}
});

},
</code></pre>

Model(User.js):

<pre><code>beforeUpdate: function(values, next) {
if(values.password) {
hashPassword(values, next);
} else {
next();
}
},
</code></pre>

blocks|key|3906972|text|我也在尝试类似的操作:将密码保存到相关的passport记录中。我使用的是sails-auth和sails-permissions模块，其中包括passport。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3906973|通过使用afterValidate+lifecycle+callback而不是beforeUpdate回调，我终于能够做到这一点。在afterValidate回调中，您可以使用this.user访问用户模型。|offset|length|style|CODE|3906974|下面是我放入afterValidate回调函数中的代码，我使用Passport模型保存传入的密码：|3906975|afterValidate:+function(updates,+next)+{
++//+Update+the+passport+password+if+it+was+passed+in
++if(updates.password)+{
++++Passport.update({user:+this.user.id},+{password:+updates.password}).exec(function(err,+passport)+{
++++++next(err);
++++});
++}
++else+{
++++next();
++}
}|code-block|syntax|javascript|3906976|entityMap|0|LINK|mutability|MUTABLE|url|http://sailsjs.org/documentation/concepts/models-and-orm/lifecycle-callbacks^0|0|2G|9|I|I|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@$D|10|E|11|1|12]]|A|$]]|$1|H|3|I|5|6|7|13|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|14|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

I was also trying to do something similar: save the password to the associated passport record. I'm using the sails-auth and sails-permissions modules, which includes passport.

I was finally able to do it by using the afterValidate <a href="http://sailsjs.org/documentation/concepts/models-and-orm/lifecycle-callbacks" rel="nofollow">lifecycle callback</a> instead of beforeUpdate callback. In the afterValidate callback, you can access the user model using <code>this.user</code>.

Here's the code I put into my afterValidate callback where I save the password passed in using the Passport model:

<pre><code>afterValidate: function(updates, next) {
 // Update the passport password if it was passed in
 if(updates.password) {
 Passport.update({user: this.user.id}, {password: updates.password}).exec(function(err, passport) {
 next(err);
 });
 }
 else {
 next();
 }
}
</code></pre>

I need to encrypt the password only if some criteria is fullfilled.

<pre><code>beforeUpdate: function (value, cb) {
User.findOne(value.id)
 .exec(function (err, originalUser) {
 if (err || !originalUser) {
 return cb();
 }
 //encrypt the password only if the password is not previously encrypted
 if (value.password != originalUser.password) {
 //encrypt the Pwd
 } else {
 cb();
 }
 });
</code></pre>

}
The problem is that, the value object only contains the update params, how can I get the whole user object in the value object?

conditional beforeUpdate in sails

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

EdgeOne AI 安全实战专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

只有在满足某些条件时，我才需要加密密码。beforeUpdate: function (value, cb) {User.findOne(value.id)  .exec(function (err, originalUser) {    if (err || !originalUser) {      return cb();    }    //encrypt the password onl

问sails中的条件beforeUpdate
EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问sails中的条件beforeUpdateEN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问sails中的条件beforeUpdate
EN