Sort by relationship first in laravel - php

Question

I have two tables: admins and log_doctor_infos. admins table has relationship hasOne with log_doctor_infos throught doctor_id like this.
In model Admin:
public function logDoctorInfo() {
return $this->hasOne(LogDoctorInfo::class, 'doctor_id', 'id');
// Model LogDoctorInfo is log_doctor_infos table
}
And in Model LogDoctorInfo:
public function doctor(){
return $this->belongsTo(Admin::class, 'doctor_id', 'id');
// Model Admin is admins table
}
I get all data form admins table and i want to sort record has relationship with log_doctor_infos to top.
Yellow record, which has relationship with log_doctor_infos and i want to sort it in top.
Edit: i use paginate in this query and i really want to get quantity of Yellow record.
Thanks for reading!
In my controller, i have custom filter and paginate. Help me.
public function index(Request $request) {
$fullname = $request->query('fullname', NULL);
$phone = $request->query('phone', NULL);
$status = $request->query('status', NULL);
$doctors = (new Doctor)->newQuery();
if ($fullname != NULL) {
$doctors = $doctors->where('fullname', 'LIKE', '%'.$fullname.'%');
}
if ($phone != NULL) {
$doctors = $doctors->where('phone', 'LIKE', '%'.$phone.'%');
}
if ($status != NULL) {
$doctors = $doctors->where('status', $status);
}
$doctors = $doctors
// ->with(array('logDoctorInfo' => function($query) {
// $query->orderBy('updated_at', 'ASC');
// }))
->latest()
->paginate()
->appends([
'fullname' => $fullname,
'phone' => $phone,
'status' => $status
]);
// dd($doctors);
return view('admin.doctors.index', compact('doctors'));
}

Answer 1

you can use the withCount method.
Admin::withCount('logDoctorInfo')
->orderBy('log_doctor_info_count', 'desc')
->paginate(5);
Your controller will look like this
public function index(Request $request) {
$fullname = $request->input('fullname', NULL);
$phone = $request->input('phone', NULL);
$status = $request->input('status', NULL);
$doctorQuery = Doctor::query();
if ($fullname) {
$doctorQuery->where('fullname', 'LIKE', '%'.$fullname.'%');
}
if ($phone) {
$doctorQuery->where('phone', 'LIKE', '%'.$phone.'%');
}
if ($status) {
$doctorQuery->where('status', $status);
}
$doctorQuery->withCount('logDoctorInfo')
->orderBy('log_doctor_info_count');
$doctors = $doctorQuery->paginate()
->appends([
'fullname' => $fullname,
'phone' => $phone,
'status' => $status
]);
// dd($doctors);
return view('admin.doctors.index', compact('doctors'));
}

Answer 2

Doctor::with('logDoctorInfo')->get()->sortByDesc('logDoctorInfo.id');