liwo/app/Models/File.php

<?php

namespace App\Models;

use App\HiLib\Models\Model;
use Illuminate\Support\Facades\Storage;

class File extends Model
{
    protected $table = 'files';

    protected $fillable = [
        'user_id', 'business_id', 'project_id', 'disk', 'original_name', 'name',
        'extension', 'mime', 'group','size', 'description'
    ];

    protected $casts = [];

    public function rules()
    {
        return [
            'user_id' => 'required',
            'business_id' => 'required',
            'project_id' => 'required',
            'original_name' => 'required',
            'name' => 'required',
            'extension' => 'required',
            'size' => 'required',
            'description' => 'nullable',
        ];
    }


    public function user()
    {
        return $this->belongsTo(User::class, 'user_id','id','id',__FUNCTION__);
    }

    public function business()
    {
        return $this->belongsTo(Business::class, 'business_id', 'id', 'id', __FUNCTION__);
    }

    public function project()
    {
        return $this->belongsTo(Project::class, 'project_id', 'id', 'id', __FUNCTION__);
    }

    public function updateRelations()
    {

    }

    public function reportActivity()
    {

    }

    public function getPath()
    {
        return $this->business->id . \DIRECTORY_SEPARATOR . $this->project->id . DIRECTORY_SEPARATOR . $this->name;
    }

    public function getTemporaryLink()
    {
        return Storage::disk('s3')->temporaryUrl(
            $this->getPath(),
            \Carbon\Carbon::now()->addMinutes(15),
            [
                'Content-Type' => $this->mime,
                'Content-Disposition' => $this->original_name,
            ]
        );
    }
}