Yii フレームワークを使用してオンラインストアを作成する

composer create-project --prefer-dist yiisoft/yii2-app-basic basic

CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `email` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `product` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `price` float(10,2) NOT NULL,
  `description` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `order` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NOT NULL,
  `product_id` int(11) NOT NULL,
  `quantity` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  KEY `user_id` (`user_id`),
  KEY `product_id` (`product_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `cart` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NOT NULL,
  `product_id` int(11) NOT NULL,
  `quantity` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  KEY `user_id` (`user_id`),
  KEY `product_id` (`product_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

<?php

namespace appcontrollers;

use yiiwebController;

class UserController extends Controller
{
    public function actionIndex()
    {
        return $this->render('index');
    }

    public function actionLogin()
    {
        // code for login logic
    }

    public function actionRegister()
    {
        // code for registration logic
    }
}

<?php

use yiihelpersHtml;

$this->title = 'User';
$this->params['breadcrumbs'][] = $this->title;
?>
<h1><?= Html::encode($this->title) ?></h1>
<p>
Welcome to the user homepage.
</p>

<?php

namespace appcontrollers;

use yiiwebController;
use appmodelsProduct;
use yiidataActiveDataProvider;

class ProductController extends Controller
{
    public function actionIndex()
    {
        $dataProvider = new ActiveDataProvider([
            'query' => Product::find(),
        ]);

        return $this->render('index', [
            'dataProvider' => $dataProvider,
        ]);
    }

    public function actionAddtocart($id)
    {
        // code for add to cart logic
    }
}

<?php

use yiihelpersHtml;
use yiigridGridView;

$this->title = 'Product';
$this->params['breadcrumbs'][] = $this->title;
?>
<h1><?= Html::encode($this->title) ?></h1>

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
        'id',
        'name',
        'price',
        'description',
        [
            'class' => 'yiigridActionColumn',
            'buttons' => [
                'addtocart' => function ($url, $model) {
                    return Html::a('Add to cart', ['product/addtocart', 'id' => $model->id]);
                }
            ],
            'template' => '{addtocart}',
        ],
    ],
]); ?>

<?php

namespace appcontrollers;

use yiiwebController;
use Yii;

class CartController extends Controller
{
    public function actionIndex()
    {
        $cart = Yii::$app->session->get('cart');
        return $this->render('index', [
            'cart' => $cart,
        ]);
    }

    public function actionAdd($id)
    {
        // code for add product to cart logic
    }

    public function actionRemove($id)
    {
        // code for remove product from cart logic
    }
}

<?php

use yiihelpersHtml;
use yiiwidgetsListView;

$this->title = 'Shopping Cart';
$this->params['breadcrumbs'][] = $this->title;
?>
<h1><?= Html::encode($this->title) ?></h1>

<?= ListView::widget([
    'dataProvider' => $dataProvider,
    'itemView' => '_cart_item',
    'emptyText' => 'Your cart is empty.',
]) ?>

<?php

use yiihelpersHtml;
use yiiwidgetsActiveForm;

$form = ActiveForm::begin([
    'id' => 'cart-item-' . $model['id'],
]); ?>

<?= Html::a('Remove', ['cart/remove', 'id' => $model['id']]) ?>

<?= $model['name'] ?>

<?= $form->field($model, 'quantity')->textInput(['value' => $model['quantity']]) ?>

<?= Html::submitButton('Update') ?>

<?php ActiveForm::end(); ?>