AM Coder - MongooseJS Course #4 - Mongoose Relationships (ObjectID and Populate)

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[@lyda1283]

Been searchinig everywhere for how to fech the nested objectId, your video explained it perfectly. Thank you

[@santiagotesta9720]

Great tuto! Quite clear and simple. Good job :D

[@josephuzuegbu7431]

You really explained populate very well

[@CristianIntriago_]

Thank you, finally understood populate LOL

[@scienceblossom6197]

Amazing tutorial, thanks a lot!!!

[@fixesdev]

Thank you man! great video

[@jaybarls]

Hey Alex, these tutorials are great! What I'm less sure about is how to deal with populating an array of objectIds. I always end up with an empty array '[ ]', both in my log and the Mongo shell. Your example works because you explicitly set the owner to the owner as a created variable, but populating a collection doesn't seem to work in the same way - any ideas?

[@FilipeAugusto361]

Create the dog and owner, and then get the dog.yourArray and then push the owner into the array and then you save using dog.save(). You will have a list of objectsId so just populate and you will have it. Hope you understand english is not my first language

[@mmmdtagliyev4176]

Thanks a lot !

[@pedrocajas478]

i got a question. what if you want to search the dog by their owner name? how can i get that query?

[@AlexMercedCoder]

A couple different approaches you can filter by the id of the owner or search for the owner and populate the dogs on that owner

[@pedrocajas478]

@@AlexMercedCoder so, there’s no way to search that way? I mean, I’m working on some project that I’ve to implement this type of query. It’s like a sql join query

[@AlexMercedCoder]

@@pedrocajas478 yes you can, the user would type in the username on the front end the backend would just need to implement the logic for it (joins aren’t really a thing in mongo) So you can can: search the owners name in the owner collection, populate their dogs then send it back or have the Frontend pass the right id based on the name searched and search the right dog basic on the owner id. You could also just search for all dogs and populate the owners then do an array.fine but that wouldn’t scale well

[@AlexMercedCoder]

stackoverflow.com/questions/24536648/mongoose-find-in-referenced-document-properties

[@pedrocajas478]

@@AlexMercedCoder thank you Alex!

[@hamisikandy2687]

how did you customize your terminal kindly

[@AlexMercedCoder]

You can use chalk or a library I created called mercedlogger

[@AlexMercedCoder]

Also if you just meant the whole prompt that is starship.rs

[@augustocastro376]

Nice

[@adeniyitaofik3832]

this doesnt work when saving dog while owner has a unique key

[@adeniyitaofik3832]

any work around for this