Recent questions tagged Mongoose

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mongoose - Mongodb update with upsert and multi syntax

I am new to mongodb and so stressed out because of mongodb's incomplete documentation leaving me for trial and ... THEN 1200 ELSE score END See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongoose (mongodb) Alias _id field

Is it possible with mongoose use a different name, in my case uppercase 'ID', as an alias for the ... Any help gratefully received thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongoose - Is there a way to prevent MongoDB adding plural form to collection names?

It all works fine until I want to create a collection named 'Mice' for example. Both Mouses and Mices are ... suggestion, I am using Mongoose. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongoose - change ttl for a single document

I have a very certain thing i want to accomplish, and I wanted to make sure it is not possible in ... existing npm related modules? thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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737 views

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mongoose - MongoDB nested Object field depth limit

If we have the following JavaScript object: var obj = { field: { field: { field: { field: {...} } } } } how deep can MongoDB go? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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802 views

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mongoose - mongoDB: $dateToString format to show time by 15min interval

I have a example here, https://mongoplayground.net/p/fqxBy6NAZXL As you will see final result has "dateHour" and " ... ,"2020-03-19T18:45:00" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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542 views

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mongoose - MongooseJS cant disable unique to field

This is my mongoosejs schema. I set name unique to false, but this is what i get: MongoError: insertDocument : ... to solve this ? suggestions ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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711 views

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mongoose - MongoDb: find deeply nested object with $lookup

I have collection like this: collection name is - account. and it has sub-documents like account > buildings > ... come from device object } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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mongoose - Can a Mongo model self reference

I have a model like this: var userSchema = new mongoose.Schema({ _id: { type: Schema.ObjectId }, email: { ... expand the users in the referals[] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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823 views

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mongoose - Project first item in an array to new field (MongoDB aggregation)

I am using Mongoose aggregation (MongoDB version 3.2). I have a field users which is an array. I want to ... can I do it correctly? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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593 views

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mongoose - How to sort a populated document in find request?

I would like to sort a populated Document from the collection i fetch, i get an error requesting it. Let's admit ... object. by adding this... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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733 views

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mongoose 联合查询 populate

文章列表字段 classUuid 和分类列表字段 uuid对应的，怎么可以查文章联合分类表中的 tabname 字段查出来，关于populate的使用看了很多例子然后然后都不对，以下是代码： //代码已经修改为聚合 ... , message: 'success', data, count:total }) } }); 响应的 tab 为空和联合查询一样...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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