So first I have a query that finds books that has been borrowed by user, it will search using the Borrow model
const bookqueryinitial = await Borrow.find({borrower_Id : String(_id), borrowStatus: req.query.status}).sort({"borrowDate": -1 }).skip(skip).limit(pageSize);
it will return results like this
[
{
_id: new ObjectId("628ebcc10944a1223397b057"),
borrower_Id: '6278d1b6b4b7659470572e19',
borrowedbook_Id: '62710ac63ad1bfc6d1703162',
borrowStatus: 'pending',
borrowDate: 2022-05-25T23:33:21.849Z,
__v: 0
},
{
_id: new ObjectId("628d9c0b9a3dc72f4aa72f1a"),
borrower_Id: '6278d1b6b4b7659470572e19',
borrowedbook_Id: '62710ac63ad1bfc6d170314d',
borrowStatus: 'pending',
borrowDate: 2022-05-25T03:01:31.416Z,
__v: 0
}
]
next is I will map through the borrowedbook_Ids of the result and store them in an array
const booksinsidequery = bookqueryinitial.map(bookids=>{
return bookids.borrowedbook_Id
})
then I will search the ids that is stored in array and search for those ids in the Book model
const bookquery = await Book.find({ '_id': { $in: booksinsidequery } });
\and the result is somethign like this
[
{
_id: new ObjectId("62710ac63ad1bfc6d170314d"),
title: "Girl who kicked the Hornet's Nest",
author: 'Larsson, Steig',
genre: [ 'fiction' ],
publisher: '',
dateOfPublication: 2017-10-25T00:00:00.000Z,
noOfCopies: 14,
type: 'Article',
form: 'Fiction',
isbn: '978-69793-4824559-56755-9',
dateAdded: 2003-04-23T00:00:00.000Z,
noOfBookmarks: [ [Object] ],
noOfLikes: [],
},
{
_id: new ObjectId("62710ac63ad1bfc6d1703162"),
title: 'We the Nation',
author: 'Palkhivala',
genre: [ 'philosophy' ],
publisher: '',
dateOfPublication: 2011-11-22T00:00:00.000Z,
noOfCopies: 94,
type: 'Book',
form: 'Non-fiction',
isbn: '978-65685-4156343-802140-8',
dateAdded: 2010-06-08T00:00:00.000Z,
noOfLikes: [],
noOfBookmarks: []
}
]
Now before sending the result of the query to the client side, I want to bind my initial queries from Borrow model to my Book model and the final result should be like this
[
{
_id: new ObjectId("62710ac63ad1bfc6d170314d"),
title: "Girl who kicked the Hornet's Nest",
author: 'Larsson, Steig',
genre: [ 'fiction' ],
publisher: '',
dateOfPublication: 2017-10-25T00:00:00.000Z,
noOfCopies: 14,
type: 'Article',
form: 'Fiction',
isbn: '978-69793-4824559-56755-9',
dateAdded: 2003-04-23T00:00:00.000Z,
noOfBookmarks: [ [Object] ],
noOfLikes: [],
//added properties based on matched condition (Borrow.borrowedbook_Id === Book._id)
borrowStatus: 'pending',
borrowDate: 2022-05-25T03:01:31.416Z,
},
{
_id: new ObjectId("62710ac63ad1bfc6d1703162"),
title: 'We the Nation',
author: 'Palkhivala',
genre: [ 'philosophy' ],
publisher: '',
dateOfPublication: 2011-11-22T00:00:00.000Z,
noOfCopies: 94,
type: 'Book',
form: 'Non-fiction',
isbn: '978-65685-4156343-802140-8',
dateAdded: 2010-06-08T00:00:00.000Z,
noOfLikes: [],
noOfBookmarks: [],
//added properties based on matched condition (Borrow.borrowedbook_Id === Book._id)
borrowStatus: 'pending',
borrowDate: 2022-05-25T23:33:21.849Z,
}
]
How can I attain these results?