ldc-startcoq/app/Models/Keyword.php

<?php

namespace App\Models;

use App\Enums\KeywordCategoryEnum;
use Illuminate\Database\Eloquent\Model;

/**
 * @property integer $id
 * @property string $label
 * @property \App\Enums\KeywordCategoryEnum $keyword_cat
 * @property \Carbon\Carbon $created_at
 * @property \Carbon\Carbon $updated_at
 *
 *  *  RELATIONSHIPS
 * @property-read \Illuminate\Database\Eloquent\Collection<\App\Models\Product> $products
 * @property-read \Illuminate\Database\Eloquent\Collection<\App\Models\Keyword> $keywordables
 */
class Keyword extends Model
{
    /**
     * @var array
     */
    protected $fillable = [
        'label',
        'keyword_cat',
        'created_at',
        'updated_at'
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'keyword_cat' => KeywordCategoryEnum::class
    ];

    // * RELATIONSHIPS

    /**
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function keywordables()
    {
        return $this->hasMany(Keywordable::class);
    }

    /**
     * MorphToMany products relation.
     *
     * @return \Illuminate\Database\Eloquent\Relations\MorphToMany
     */
    public function products()
    {
        return $this->morphToMany(Product::class, 'keywordable');
    }
}