extend belongsto

BelongsTo.php

<?php

namespace App\Nova\Fields;

use Laravel\Nova\Fields\BelongsTo as NovaBelongsTo;
use Laravel\Nova\Http\Requests\NovaRequest;

class BelongsTo extends NovaBelongsTo
{
    public $component = 'belongs-to-with-facets';

    public $hmm = null;

    public function hmm(string $hmm)
    {
        $this->hmm = $hmm;
        ray($this->hmm);
        return $this;
    }

    public function jsonSerialize(): array
    {
        return with(app(NovaRequest::class), function ($request) {
            $viewable = !is_null($this->viewable) ? $this->viewable : $this->resourceClass::authorizedToViewAny($request);

            return array_merge([
                'hmm' => $this->hmm,
                'belongsToId' => $this->belongsToId,
                'relationshipType' => $this->relationshipType(),
                'belongsToRelationship' => $this->belongsToRelationship,
                'debounce' => $this->debounce,
                'displaysWithTrashed' => $this->displaysWithTrashed,
                'label' => $this->resourceClass::label(),
                'peekable' => $this->isPeekable($request),
                'hasFieldsToPeekAt' => $this->hasFieldsToPeekAt($request),
                'resourceName' => $this->resourceName,
                'reverse' => $this->isReverseRelation($request),
                'searchable' => $this->isSearchable($request),
                'withSubtitles' => $this->withSubtitles,
                'showCreateRelationButton' => $this->createRelationShouldBeShown($request),
                'singularLabel' => $this->singularLabel,
                'viewable' => $viewable,
            ], parent::jsonSerialize());
        });
    }

}