UserMetaTrait.php

<?php

namespace arashrasoulzadeh\auth\src\traits;

use arashrasoulzadeh\auth\src\model\UserAuthMetas;

trait UserMetaTrait
{

    /** @var array
     * this keys will NOT be loaded from metas
     */
    private $excludeInMeta = [
        'id'
    ];
    /** @var array
     * used by caching system
     */
    private $fieldCaches = [

    ];

    /**
     * load the key from database
     * @param $key
     * @return string|null
     */
    public function loadFromDatabase($key)
    {
        $item = UserAuthMetas
            ::where("class", $this->table)
            ->where("key", $key)
            ->orderBy("id","desc")
            ->where("owner", $this->id);
        if ($item->count()) {
            $item = $item->first();
            $fresh = $item->fresh();
            return $fresh->value;
        } else {
            return null;
        }
    }


    /**
     * @inheritDoc
     */
    public function __get($key)
    {
        $original = parent::__get($key);
        if (!in_array($key, $this->excludeInMeta)) {

            if (!isset($this->fieldCaches[$key])) {
                $value = $this->loadFromDatabase($key);
                $this->fieldCaches[$key] = $value;
                return $this->fieldCaches[$key];
            } else {
                return $this->fieldCaches[$key];
            }


        } else {
            return $original;
        }

    }

    /**
     * save the key to database
     * @param $key
     * @param $value
     */
    private function saveToDatabase($key, $value)
    {
        $item = new UserAuthMetas();
        $item->class = $this->table;
        $item->owner = $this->id;
        $item->key = $key;
        $item->value = $value;
        $item->save();
    }

    /**
     * @inheritDoc
     */
    public function __set($key, $value)
    {
        $original = parent::__get($key);
        if (!in_array($key, $this->excludeInMeta)) {
            $this->saveToDatabase($key, $value);
            $this->fieldCaches[$key] = $value;
            parent::__set($key, $value);
        } else {
            parent::__set($key, $value);
        }
    }

}