how to select specific fields from the tables in laravel - laravel

Question

This works but it gives all the fields of account table but only few are required.
$data = Loan::select('*')
->with([
'member' => function ($query) {
$query->addSelect('id', 'name');
},
'member.account'
])
->get();
This gives account: null
$data = Loan::select('*')
->with([
'member' => function ($query) {
$query->addSelect('id', 'name');
},
'member.account'=> function ($query) {
$query->addSelect('id', 'account'); // if this line is commented, all the fields are returned but I just need few fields.
}
])
->get();
Member model:
public function account()
{
return $this->hasOne(Account::class);
}
Account model:
public function member()
{
return $this->belongsTo(Member::class);
}
How can I get only the required fields of account table?

Answer 1

You can define the relationship and set it to give you specific columns like this.
on Member model
public function account()
{
return $this->hasOne(Account::class)->select(['id', 'account']);
}

Answer 2

You can try to define required fields in with:
$data = Loan::select('*')
->with([
'member' => function ($query) {
$query->addSelect('id', 'name');
},
'member.account:id,number'
])
->get();

Answer 3

Your are close you just need to select the foreign key column that points to your account model , I guess it would be account_id, So you basically need to select 3 columns from your table which are select(['id', 'name','account_id'])
$data = Loan::with(['member' => function ($query) {
$query->select(['id', 'name','account_id'])
->with(['account'=> function($query){
$query->select(['id','name']);
}]);
}])
->get();
So if you have another nested relation account -> type and you need specific columns from type so you need to select the foreign key column from accounts models as
with(['account'=> function($query){
$query->select(['id','name','type_id'])
->with(['type'=> function($query){
$query->select(['id','name']);
}]);
}]);