podcastartgenerator/site/app/Models/Podcast.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Podcast extends Model
{
    use HasFactory;

    use SoftDeletes;

    protected $table = 'podcasts';

    protected $dates = ['created_at', 'updated_at', 'deleted_at', 'added_at'];

    protected $casts = [
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
        'deleted_at' => 'datetime',
        'added_at'   => 'datetime',
    ];

    public function episodes()
    {
        return $this->hasMany(Episode::class);
    }

    public function artists()
    {
        return $this->hasManyThrough(Artist::class, Episode::class);
    }

}