eloquent find model by id and load relationship code example
Example 1: laravel where has
use Illuminate\Database\Eloquent\Builder;
$posts = App\Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'foo%');
})->get();
$posts = App\Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'foo%');
}, '>=', 10)->get();
Example 2: laravel eloquent associate
$account = App\Account::find(10);
$user->account()->associate($account);
$user->save();