oc-social-plugin/models/Attachment.php

<?php namespace Zoomyboy\Social\Models;

use Event;
use MediaLibrary;
use Model;

/**
 * Attachment Model
 */
class Attachment extends Model
{
    use \October\Rain\Database\Traits\Validation;

    /**
     * @var string The database table used by the model.
     */
    public $table = 'zoomyboy_social_attachments';

    /**
     * @var array Guarded fields
     */
    protected $guarded = ['*'];

    /**
     * @var array Fillable fields
     */
    protected $fillable = [ 'remote_id', 'post_id', 'href', 'type' ];

    /**
     * @var array Validation rules for attributes
     */
    public $rules = [];

    /**
     * @var array Attributes to be cast to native types
     */
    protected $casts = [];

    /**
     * @var array Attributes to be cast to JSON
     */
    protected $jsonable = [];

    /**
     * @var array Attributes to be appended to the API representation of the model (ex. toArray())
     */
    protected $appends = [];

    /**
     * @var array Attributes to be removed from the API representation of the model (ex. toArray())
     */
    protected $hidden = [];

    /**
     * @var array Attributes to be cast to Argon (Carbon) instances
     */
    protected $dates = [
        'created_at',
        'updated_at'
    ];

    /**
     * @var array Relations
     */
    public $hasOne = [];
    public $hasMany = [];
    public $belongsTo = [
        'post' => [Post::class, 'post_id']
    ];
    public $belongsToMany = [];
    public $morphTo = [];
    public $morphOne = [];
    public $morphMany = [];
    public $attachOne = [];
    public $attachMany = [];

    public function beforeDelete()
    {
        MediaLibrary::instance()->deleteFiles([$this->href]);
        Event::fire('media.file.delete', [null, $this->href, null]);
    }
}