mongodb 通过 id 删除记录？
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Remove record by id?
提问by Sable
Why I can't remove record by _id?
为什么我不能通过 _id 删除记录？
Code:
代码：
db.collection('posts', function(err, collection) {
collection.remove({_id: '4d512b45cc9374271b00000f'});
});
回答by JohnnyHK
You need to pass the _idvalue as an ObjectID, not a string:
您需要将_id值作为 ObjectID传递，而不是字符串：
var mongodb = require('mongodb');
db.collection('posts', function(err, collection) {
collection.deleteOne({_id: new mongodb.ObjectID('4d512b45cc9374271b00000f')});
});
回答by Bill Tarbell
MongoDb has now marked the remove method as deprecated. It has been replaced by two separate methods: deleteOne and deleteMany.
MongoDb 现在已将 remove 方法标记为已弃用。它已被两个单独的方法取代：deleteOne 和 deleteMany。
Here is their relevant getting started guide: https://docs.mongodb.org/getting-started/node/remove/
这是他们的相关入门指南：https: //docs.mongodb.org/getting-started/node/remove/
and here is a quick sample:
这是一个快速示例：
var mongodb = require('mongodb');
db.collection('posts', function(err, collection) {
collection.deleteOne({_id: new mongodb.ObjectID('4d512b45cc9374271b00000f')}, function(err, results) {
if (err){
console.log("failed");
throw err;
}
console.log("success");
});
});
