mongodb find join collections

Gifted Gazelle answered on October 9, 2021 Popularity 9/10 Helpfulness 1/10

answer mongodb find join collections

mongodb find join collections

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db.books.find().forEach(
    function (newBook) {
        newBook.category = db.categories.findOne( { "_id": newBook.category } );
        newBook.lendings = db.lendings.find( { "book": newBook._id  } ).toArray();
        newBook.authors = db.authors.find( { "_id": { $in: newBook.authors }  } ).toArray();
        db.booksReloaded.insert(newBook);
    }
);

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Source: stackoverflow.com

Tags: collections find join mongodb whatever

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Contributed on Oct 09 2021

Gifted Gazelle

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mongodb find join collections

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