mongoose find element in array

相關問題 & 資訊整理

mongoose find element in array

The $elemMatch operator matches documents that contain an array field with at least one element that matches all the specified query criteria. copy. copied. , As favouriteFoods is a simple array of strings, you can just query that field .... In case you need to find documents which contain NULL elements ..., How to get a specific object from an array field with mongoose [duplicate] ... Retrieve only the queried element in an object array in MongoDB ...,If teamIds is already an array, then you shouldn't wrap it in another array like you are: Team.find( '_id': $in: teamIds } }, function(err, teamData) ... , Your terminology is off as that structure is not a "multi-dimensional" array, since those have "arrays within arrays", hence "dimensions". This is ..., I changed it to use findOne instead of find and it works now. I am not too sure why this should make a difference. This is the findOne function I ..., Using the $ positional operator, you can get the results. However, if you have multiple elements in the vehicles array all of them will be returned ..., I think it will work. Document.findById(docId, 'items.id': 'yourId'}, 'items.$': 1}, function(err, item) }.,MongoDB Manual - How to query an array: query on the array field as a whole, check if element in array, query for array element, query if field in array, query by ...

相關軟體 MongoDB 資訊

MongoDB
MongoDB 是一個免費且開放源碼的跨平檯面向文檔的數據庫程序。分類為 NoSQL 數據庫程序,MongoDB 使用類似 JSON 的文檔與模式。它為使用 MongoDB 包括數據庫開發人員和 DBA 的任何人提供了豐富的 GUI 工具。主要功能包括:全功能嵌入 MongoDB Shell,用戶友好的 Map-Reduce 操作編輯器,創建 / 刪除數據庫,管理集合及其索引的能力,用戶友好的 G... MongoDB 軟體介紹

mongoose find element in array 相關參考資料
$elemMatch (query) — MongoDB Manual

The $elemMatch operator matches documents that contain an array field with at least one element that matches all the specified query criteria. copy. copied.

https://docs.mongodb.com

Find document with array that contains a specific value - Stack ...

As favouriteFoods is a simple array of strings, you can just query that field .... In case you need to find documents which contain NULL elements ...

https://stackoverflow.com

How to get a specific object from an array field with mongoose ...

How to get a specific object from an array field with mongoose [duplicate] ... Retrieve only the queried element in an object array in MongoDB ...

https://stackoverflow.com

Mongoose find array with $in - Stack Overflow

If teamIds is already an array, then you shouldn't wrap it in another array like you are: Team.find( '_id': $in: teamIds } }, function(err, teamData) ...

https://stackoverflow.com

Mongoose find element in array - Stack Overflow

Your terminology is off as that structure is not a "multi-dimensional" array, since those have "arrays within arrays", hence "dimensions". This is ...

https://stackoverflow.com

Mongoose Mongodb querying an array of objects - Stack Overflow

I changed it to use findOne instead of find and it works now. I am not too sure why this should make a difference. This is the findOne function I ...

https://stackoverflow.com

Mongoose Query: Find an element inside an array - Stack Overflow

Using the $ positional operator, you can get the results. However, if you have multiple elements in the vehicles array all of them will be returned ...

https://stackoverflow.com

Mongoose, find item in a documents array - Stack Overflow

I think it will work. Document.findById(docId, 'items.id': 'yourId'}, 'items.$': 1}, function(err, item) }.

https://stackoverflow.com

Query an Array — MongoDB Manual

MongoDB Manual - How to query an array: query on the array field as a whole, check if element in array, query for array element, query if field in array, query by ...

https://docs.mongodb.com