node.js 猫鼬中的“$in”有什么问题
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What's wrong with "$in" in mongoose
提问by Roman
Good day for everyone. I have a strange error working with mongoose
每个人都有美好的一天。我在使用猫鼬时遇到了一个奇怪的错误
module.js:437
var compiledWrapper = runInThisContext(wrapper, filename, tru
^
SyntaxError: Unexpected token .
at Module._compile (module.js:437:25)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:362:17)
at require (module.js:378:17)
at Object.<anonymous> (E:\Dropbox\Dropbox\FCP\server.js
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
I gues it's goes from
我猜它来自
dbQueries.remove({_id: {$in: {req.body.data}}, authorId: req.user._id}, function onRemoveSomething(err){
if(err) {
res.json({epicFail: 'ERR_RestrictedAccess'});
return;
}
});
So, I have no idea what is wrong.
所以，我不知道出了什么问题。
回答by Andy Ray
回答by Haneef Abdulla
you have to check req.body.datais an array or not, see the code below
{_id: {$in: _.isArray(req.body.data) ? req.body.data : [req.body.data] } //const _ = require('lodash');
您必须检查req.body.data是否为数组，请参阅下面的代码
{_id: {$in: _.isArray(req.body.data) ? req.body.data : [req.body.data] } //const _ = require('lodash');
回答by Lucky Soni
Build your query based on the data
根据数据构建查询
var match = {
authorId: req.user._id
};
if(Array.isArray(data)) {
match._id = {$in: data};
} else {
match._id = data;
}
dbQueries.remove(match, function findMyDocs(err, foundDocs) {
});
