Merge 'with' and 'whereHas' in Laravel 5

Question

I have this code in Laravel 5, using Eloquent, which is working perfectly:

$filterTask = function($query) use ($id) {
    $query->where(\'taskid\', $id);
         


        

Answer 1

I want to extend the answer from @lukasgeiter using static functions.

public static function withAndWhereHas($relation, $constraint){
    return (new static)->whereHas($relation, $constraint)
        ->with([$relation => $constraint]);
}

Usage is the same

User::withAndWhereHas('submissions', function($query) use ($id){
    $query->where('taskid', $id);
})->get();