UNIT3D/app/Models/Conversation.php

<?php

declare(strict_types=1);

/**
 * NOTICE OF LICENSE.
 *
 * UNIT3D Community Edition is open-sourced software licensed under the GNU Affero General Public License v3.0
 * The details is bundled with this project in the file LICENSE.txt.
 *
 * @project    UNIT3D Community Edition
 *
 * @author     Roardom <roardom@protonmail.com>
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html/ GNU Affero General Public License v3.0
 */

namespace App\Models;

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

class Conversation extends Model
{
    /** @use HasFactory<\Database\Factories\ConversationFactory> */
    use HasFactory;

    /**
     * The attributes that aren't mass assignable.
     *
     * @var string[]
     */
    protected $guarded = [];

    /**
     * Has many private messages.
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany<PrivateMessage, $this>
     */
    public function messages(): \Illuminate\Database\Eloquent\Relations\HasMany
    {
        return $this->hasMany(PrivateMessage::class);
    }

    /**
     * Has many users.
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany<User, $this>
     */
    public function users(): \Illuminate\Database\Eloquent\Relations\BelongsToMany
    {
        return $this->belongsToMany(User::class, 'participants')->withTrashed();
    }

    /**
     * Has many participants.
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany<Participant, $this>
     */
    public function participants(): \Illuminate\Database\Eloquent\Relations\HasMany
    {
        return $this->hasMany(Participant::class);
    }
}