Specific columns using eloquent in a nested eager loading - php

Question

Is there a way to only limit the number of columns that one can select in a nested eager loading in Laravel?
Currently, I have 3 models that inter-relate. For instance, let's assume that we have the Publisher model, Authors model, and books model.
A publisher has a relationship with the Authors and the Authors have a relation with the book's models.
The Publisher model has columns like:
id
name
address
fax number
email address
The author's models contain:
id
name
address
email
published books
publishers_id
The books models contain:
id
title
authors_id
published_on
category
If I want to check the books that have been published by a given publication company: This is how I pull the records
$published_books::Publisher::with('authors.books')->take(1);
With this, I get a response like this:
"id" : 1,
"name" : "Longhorn Ke",
"address" : "14th Street",
"fax number" : "null",
"email_address" : "longhorn#mail.com",
"author" :{
"id" : 4,
"name" : patel,
"email" : patelguru#mail.com,
"published_books" : 12,
"publishers_id" : 1,
"books" : {
"id": 1,
"title" : "Art of life",
"authors_id" : 1,
"published_on" : "2020-07-12 14:22:25",
"category" : "Life teachings",
}
}
What I want is that when I load a book through the relationship I only want to get the name of the publisher, name of the author and the books details as shown below:
"id" : 1,
"name" : "Longhorn Ke",
"author" :{
"id" : 4,
"name" : patel,
"books" : {
"id": 1,
"title" : "Art of life",
"authors_id" : 1,
"published_on" : "2020-07-12 14:22:25",
"category" : "Life teachings",
}
}
How can I achieve that using eloquent? At this point, I understand that eloquent allows selection of specific columns on a nester load as shown in this link https://laravel.com/docs/master/eloquent-relationships#eager-loading-specific-columns but how do I do it in all the models to achieve the code result show above

Answer 1

For the top-most model you need select(); for the relationships you need relationship:id,...:
$published_books = Publisher::with(['authors.books', 'authors:id,name'])
->select('id', 'name')
->take(1);