mongodb-schema | Infer a probabilistic schema for a MongoDB collection | Pub Sub library

by mongodb-js TypeScript Version: 12.1.1 License: Apache-2.0

X-Ray Key Features Code Snippets(1)Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | mongodb-schema Summary

mongodb-schema is a TypeScript library typically used in Messaging, Pub Sub, MongoDB, Kafka applications. mongodb-schema has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Infer a probabilistic schema for a MongoDB collection.

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Security

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Support

mongodb-schema has a low active ecosystem.

It has 112 star(s) with 13 fork(s). There are 21 watchers for this library.

It had no major release in the last 12 months.

There are 11 open issues and 19 have been closed. On average issues are closed in 61 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of mongodb-schema is 12.1.1

Quality

mongodb-schema has 0 bugs and 0 code smells.

Security

mongodb-schema has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

mongodb-schema code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

mongodb-schema is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

mongodb-schema releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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mongodb-schema Key Features

No Key Features are available at this moment for mongodb-schema.

mongodb-schema Examples and Code Snippets

duplicate a collection into itself

JavaScript

Lines of Code : 2

License : Strong Copyleft (CC BY-SA 4.0)

Copy

npm install -g morelikethis mongodb-schema mgeneratejs

Community Discussions

Trending Discussions on mongodb-schema

why does MongoDB recommend two-way referencing? Isn't it just circular referencing?

MongoDb get record based on dynamic keys

Spring Data MongoDB 4.0 transactions support

Mongo DB Design for user favourites (Pros and cons)

QUESTION

why does MongoDB recommend two-way referencing? Isn't it just circular referencing?

Asked 2020-Nov-23 at 15:21

Reference material: https://www.mongodb.com/blog/post/6-rules-of-thumb-for-mongodb-schema-design-part-2

...

ANSWER

Answered 2020-Nov-23 at 15:21

Its only a circular reference, if you make one out of it.

Meaning: Lets say you want to print your Mongo document to some JSON-String to print it in your browser. Instead of printing a bunch of ID's under the Tasks-Section you want to print the actual name. In this case you have to follow the ID and print the name. However: if you now go into the object and resolve the IDs behind the Owner Object, you'll be printing your Person again. This could go on indefinetely, if you program it that way. If you don't its just a bunch of IDs either way.

EDIT: depending on your implementation, IDs are not resolved automatically and thus cause no headache.

One thing: depending on your data structure and performance considerations, its sometimes easier to put any object directly into your parent document. Referencing the ID on both sides only makes sense in many-to-many relationship.

HTH

Source https://stackoverflow.com/questions/64971037

QUESTION

MongoDb get record based on dynamic keys

Asked 2020-Jul-25 at 15:03

I have a dynamic schema. In below schema "ABC", "WQA" are dynamic keys. I want to get records of those customers whose source is "sourceX" and want to show only "CustomerId" and "code".

I am a beginner in MongoDB domain. I tried different solutions like How to query a dynamic key - mongodb schema design but couldn't achieve desire output. Kindly guide me here.

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ANSWER

Answered 2020-Jul-24 at 14:34

The following aggregation pipeline would be able to achieve what you're looking for, note however that this isn't a very mongo-friendly data format. https://mongoplayground.net/p/ZRcbzEe1bkR

Source https://stackoverflow.com/questions/63074443

QUESTION

Spring Data MongoDB 4.0 transactions support

Asked 2020-May-08 at 16:45

MongoDB 4.0 are going to introduce transactions support with ACID guarantees.

Does Spring Data MongoDB already supports the transactions in MongoDB and if no, when this awesome feature will be available. I really need it, taking into account the following issue - MongoDB schema design in order to support application horizontal scaling

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ANSWER

Answered 2018-Jun-14 at 08:19

Does Spring Data MongoDB already supports the transactions in MongoDB

Spring Data Lovelace M3 (2.1.0.M3) supports synchronous transaction for MongoDB v4.0, released on May 17th 2018. See also Spring Data Lovelace M3 release notes.

Example from Spring Data docs: MongoDB transactions

Source https://stackoverflow.com/questions/50845025

QUESTION

Mongo DB Design for user favourites (Pros and cons)

Asked 2019-Apr-27 at 18:45

I need to have 2 API to

1) Retrieve a list of clothes (while checking which items are the user's favourites, and mark it with a heart shape)

2) Retrieve a list of user's favourite clothes

How should I store user favourites?

What I've figured out so far:

Embed all user's ID in each clothing item in "Clothes" document. And keep an array of user's favourite in "User" document. To find out which clothes is a user's favourite we will do a match between "Clothes" and "User" document by leveraging the ID field.

Clothes collection:

...

ANSWER

Answered 2019-Apr-27 at 18:45

First of all, you have no need to store the favorite data in the clothes collection at all. In addition to the issues you identified, you will have a race condition whenever two users update favorite the same clothing item simultaneously.

Instead, only store the user's favorites in the User collection, then highlight the hearts during the rendering phase if the ClothesID matches the User's list of favorites.

Second, use a dictionary hashmap for more performative lookups, rather than a list which will require searching every item.

Source https://stackoverflow.com/questions/55878704

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install mongodb-schema

You can download it from GitHub.

Support

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