entity sample

<?php

namespace GK\Entities;

use GK\Collections\SizeCollection;
use GK\Container;
use Interop\Container\ContainerInterface;

/**
 * Class Product
 * @package GK\Entities
 * @property int $id
 * @property string $name
 * @property string $url
 * @property string $brand
 * @property string $description
 * @property string $price_usd
 * @property string $picture1
 * @property string $picture2
 * @property string $picture3
 * @property string $picture4
 * @property string $picture5
 */
class Product
{
    //db fields mapping
    protected $attributes = [
        'id'        =>0,
        'name'      =>'',
        'url'       =>'',
        'brand'     =>'',
        'description'=>'',
        'price_usd' =>0,
        'size_eur'  =>0,
        'size_us'   =>0,
        'size_ru'   =>0,
        'picture1'  =>'',
        'picture2'  =>'',
        'picture3'  =>'',
        'picture4'  =>'',
        'picture5'  =>'',
    ];

    /**
     * @var float
     */
    protected $dollar_rate;

    /**
     * @var SizeCollection
     */
    protected $sizes;

    /**
     * @var Container
     */
    private $container;

    public function setSizes(SizeCollection $sizes) {
        $this->sizes = $sizes;
    }

    /**
     * @return Container
     */
    protected function getContainer() {
        if ($this->container === NULL){
            $this->container = Container::getInst();
        }
        return $this->container;
    }

    /**
     * @param Container|ContainerInterface $container
     */
    public function setContainer(ContainerInterface $container) {
        $this->container = $container;
    }

    /**
     * Counts the price in UAH rounded to tens
     * @return mixed
     */
    public function getPrice() {
        return ceil( $this->getDollarRate() * $this->attributes['price_usd'] / 10 ) * 10;
    }

    /**
     * Loads data into attributes with a DB query
     * @param $id
     * @return bool
     */
    public function loadById($id) {
        if  (!$id || !is_numeric($id)) {
            return false;
        }
        $Select = Container::getInst()->qbf->newSelect()
            ->cols([
                'id','brand','name','size_eur','size_us','size_ru',
                'picture1','picture2','picture3','picture4','picture5',
            ])
            ->from('products p')
            ->where('p.id=?',$id)
            ;
        $res = Container::getInst()->db->perform(
            $Select->getStatement(),
            $Select->getBindValues()
        )->fetchAll();
        if ($res) {
            $this->attributes = $res;
        }
    }

    /**
     * @param array $attributes
     */
    public function setAttributes(array $attributes) {
        if (array_diff_key($attributes,$this->attributes) == []) {
            $this->attributes = $attributes;
            return;
        }
        foreach ($this->attributes as $k=>$v) {
            if (isset($attributes[$k])){
                $this->attributes[$k] = $attributes[$k];
            }
        }
    }

    /**
     * @param float $rate
     */
    public function setDollarRate($rate) {
        $this->dollar_rate = $rate;
    }

    /**
     * @return float
     */
    public function getDollarRate() {
        if ($this->dollar_rate === NULL) {
            $this->dollar_rate = $this->container->settings['dollar_rate'];
        }
        return $this->dollar_rate;
    }

    /**
     * @param $key
     * @return mixed
     */
    public function __get($key) {
        return $this->attributes[$key];
    }

}