Shopcart

components/bootstrap/Shopcart.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace app\components\bootstrap;
+
+use Yii;
+use yii\base\Component;
+use yii\web\Cookie;
+use app\models\ActiveRecord\Shopcart as ShopcartModel;
+
+class Shopcart extends Component
+{
+    private $items = [];
+
+    private $user;
+
+    private $hash;
+
+    /**
+     * Initializes this component.
+     */
+    public function init()
+    {
+        $response = Yii::$app->response;
+        $request = Yii::$app->request;
+
+        $cookies_req  = $request->cookies;
+        $cookies_resp = $response->cookies;
+
+        $user_id = NULL;
+        $hash = false;
+
+        if (!Yii::$app->user->isGuest) {
+            $user_id = Yii::$app->user->identity->id;
+
+            $record_with_hash = ShopcartModel::find()->where(['user_id' => $user_id])
+                                                ->limit(1)
+                                                ->one();
+
+            if ($record_with_hash) {
+                $hash = $record_with_hash['hash'];
+            }
+        }
+
+        if (!$hash) {
+            if ($cookies_req->has(ShopcartModel::$cookiename)) {
+                $hash = $cookies_req->get(ShopcartModel::$cookiename)->value;
+            } else {
+                $hash = Yii::$app->security->generateRandomString();
+            }
+        }
+
+        $cookies_resp->add(new Cookie([
+            'name' => ShopcartModel::$cookiename,
+            'value' => $hash,
+            'expire' => time() + (60 * 60 * 24 * 30),
+        ]));
+
+        if (!$user_id) {
+            $record_with_user = ShopcartModel::find()->where(['hash' => $hash])
+                                                ->andWhere(['!=', 'user_id', NULL])
+                                                ->limit(1)
+                                                ->one();
+
+            if ($record_with_user) {
+                $user_id = $record_with_user['user_id'];
+            }
+        }
+
+        if ($user_id) {
+            ShopcartModel::updateAll(['user_id' => $user_id], ['hash' => $hash]);
+        }
+
+        $this->user = $user_id;
+        $this->hash = $hash;
+
+        $this->getItems();
+    }
+
+    public function getShopcartData()
+    {
+        return [
+            'user_id' => $this->user,
+            'hash'    => $this->hash,
+        ];
+    }
+
+    public function getItems($update = false)
+    {
+        if (!$this->items || $update) {
+            if ($this->user) {
+                $this->items = ShopcartModel::find()->where(['user_id' => $this->user])->indexBy('product_id')->all();
+            } else {
+                $this->items = ShopcartModel::find()->where(['hash' => $this->hash])->indexBy('product_id')->all();
+            }
+        }
+
+        return $this->items;
+    }
+}