kuvia/app/Models/Storage.php

<?php

namespace App\Models;

use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Illuminate\Support\Facades\DB;

class Storage extends Authenticatable
{
    use HasFactory, Notifiable;

    protected $table = "storage";
    public $timestamps = true;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [

    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
    ];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
    ];

    public static function getLastDays(int $days = 7) {
        $sql = "SELECT `date`, `tenant`, (sum(size)/24) AS size FROM `storage` WHERE `tenant` = ".session("current_tenant_id")."  GROUP BY `date`, `tenant` ORDER BY `date` DESC LIMIT ".$days + 2.";";
        $res = DB::select($sql);

        $now = new \DateTime( $days." days ago", new \DateTimeZone('UTC'));
        $interval = new \DateInterval( 'P1D'); // 1 Day interval
        $period = new \DatePeriod( $now, $interval, $days); // 7 Days
        $result = [];
        foreach( $period as $day) {
            $key = $day->format('Y-m-d');
            $result[$day->format('Y-m-d')] = 0;
            foreach($res as $r) {
                if($r->date == $day->format('Y-m-d')) {
                    $result[$day->format('Y-m-d')] = $r->size / 1000 / 1000;
                }
            }

        }
        return $result;
    }

}