Improve all project template

assets/AppAsset.php

@@ -16,11 +16,14 @@ class AppAsset extends AssetBundle
     public $css = [
         'css/font-awesome.min.css',
         'css/animate.min.css',
+        'css/preloader.css',
         'css/style.css',
         'css/navbar.css',
     ];
     public $js = [
+        'js/preloader.js',
         'js/custom.js',
+        'js/feedback.js',
         'js/navbar.js',
         'js/wow.min.js',
         'https://www.google.com/recaptcha/api.js',

components/BasketComponent.php

@@ -0,0 +1,327 @@
+<?php
+
+namespace app\components;
+
+use Yii;
+use yii\web\Session;
+use yii\base\Component;
+use yii\db\ActiveRecordInterface;
+
+/**
+ * Class BasketComponent
+ *
+ * @property Session $sessionManager
+ *
+ * @package app\components
+ */
+class BasketComponent extends Component
+{
+    /**
+     * Session manager.
+     *
+     * @var Session
+     */
+    private $sessionManager;
+
+    /**
+     * @var string
+     */
+    private $containerName = 'basket';
+
+    /**
+     * @var string|ActiveRecordInterface
+     */
+    private $modelClass;
+
+    /**
+     * @var string
+     */
+    private $modelPrimaryKey = 'id';
+
+    /**
+     * @var string
+     */
+    private $modelAmountKey = 'price';
+
+    /**
+     * @var array
+     */
+    private $modelAdditionKeys = [];
+
+    /**
+     * @var null|array
+     */
+    private $sessionData = null;
+
+    /**
+     * Initialize.
+     */
+    public function init()
+    {
+        if (null === $this->sessionManager) {
+            $this->setSessionManager(Yii::$app->session);
+        }
+    }
+
+    /**
+     * Set sessionManager.
+     *
+     * @param Session $sessionManager
+     */
+    public function setSessionManager(Session $sessionManager): void
+    {
+        $this->sessionManager = $sessionManager;
+    }
+
+    /**
+     * @param string $name
+     */
+    public function setContainerName(string $name): void
+    {
+        $this->containerName = $name;
+    }
+
+    /**
+     * @param string $modelClass
+     * @throws \Exception
+     */
+    public function setModelClass(string $modelClass): void
+    {
+        $userModelInterfaces = class_implements($modelClass);
+
+        if (!isset($userModelInterfaces[ActiveRecordInterface::class])) {
+            throw new \Exception('Model class must be implemented from "'.ActiveRecordInterface::class.'".');
+        }
+
+        $this->modelClass = $modelClass;
+    }
+
+    /**
+     * @param string $modelPrimaryKey
+     */
+    public function setModelPrimaryKey(string $modelPrimaryKey): void
+    {
+        $this->modelPrimaryKey = $modelPrimaryKey;
+    }
+
+    /**
+     * @param string $modelAmountKey
+     */
+    public function setModelAmountKey(string $modelAmountKey): void
+    {
+        $this->modelAmountKey = $modelAmountKey;
+    }
+
+    /**
+     * @param array $modelAdditionKeys
+     */
+    public function setModelAdditionKeys(array $modelAdditionKeys): void
+    {
+        $this->modelAdditionKeys = $modelAdditionKeys;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function retrieveSessionData()
+    {
+        if ($this->sessionData == null) {
+            $this->sessionData = $this->sessionManager->get($this->containerName);
+        }
+
+        return $this->sessionData;
+    }
+
+    /**
+     * @param array|null $sessionData
+     */
+    public function fillSessionData(array $sessionData = null): void
+    {
+        $this->sessionManager->set($this->containerName, $sessionData);
+
+        $this->sessionData = $sessionData;
+    }
+
+    /**
+     * @param int $modelId
+     * @param int $count
+     * @return bool
+     * @throws \Exception
+     */
+    public function putToBasket(int $modelId, int $count = 1): bool
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (!empty($sessionData) && !is_array($sessionData)) {
+            throw new \Exception('Session data must be an array.');
+        }
+
+        if (empty($sessionData)) {
+            $sessionData = [
+                $modelId => $count
+            ];
+
+        } else if (isset($sessionData[$modelId])) {
+            $sessionData[$modelId] += $count;
+
+        } else {
+            $sessionData[$modelId] = $count;
+        }
+
+        $this->fillSessionData($sessionData);
+
+        $result = $this->retrieveSessionData();
+
+        if (empty($result)) {
+            throw new \Exception('Session storage is not full.');
+        }
+
+        if (!isset($result[$modelId])) {
+            throw new \Exception('Order item is not set to storage.');
+        }
+
+        return true;
+    }
+
+    /**
+     * @param int $modelId
+     * @param int $count
+     * @return bool
+     * @throws \Exception
+     */
+    public function setCountInBasket(int $modelId, int $count): bool
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (empty($sessionData)) {
+            throw new \Exception('Session storage is empty.');
+        }
+
+        if (!is_array($sessionData)) {
+            throw new \Exception('Session data must be an array.');
+        }
+
+        if (!isset($sessionData[$modelId])) {
+            throw new \Exception('Order item not found in a storage.');
+        }
+
+        $sessionData[$modelId] = $count;
+
+        $this->fillSessionData($sessionData);
+
+        return true;
+    }
+
+    /**
+     * @param int $modelId
+     * @return bool
+     * @throws \Exception
+     */
+    public function removeFromBasket(int $modelId): bool
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (empty($sessionData)) {
+            throw new \Exception('Session storage is already empty.');
+        }
+
+        if (!is_array($sessionData)) {
+            throw new \Exception('Session data must be an array.');
+        }
+
+        if (!isset($sessionData[$modelId])) {
+            throw new \Exception('Order item not found in a storage.');
+        }
+
+        if (count($sessionData) > 1) {
+            unset($sessionData[$modelId]);
+            $this->fillSessionData($sessionData);
+
+        } else {
+            $this->clearBasket();
+        }
+
+        return true;
+    }
+
+    /**
+     * Clear basket.
+     */
+    public function clearBasket(): void
+    {
+        $this->sessionManager->remove($this->containerName);
+        $this->sessionData = null;
+    }
+
+    /**
+     * @return int
+     */
+    public function getTotalCount(): int
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (empty($sessionData)) {
+            return 0;
+        }
+
+        return array_sum(array_values($sessionData));
+    }
+
+    /**
+     * @return float
+     */
+    public function getTotalAmount(): float
+    {
+        return $this->calculateTotalAmount($this->getModelItems());
+    }
+
+    /**
+     * @param array $modelItems
+     * @return float
+     */
+    public function calculateTotalAmount(array $modelItems): float
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (empty($sessionData)) {
+            return 0;
+        }
+
+        $amount = 0;
+
+        foreach ($modelItems as $item) {
+            $amount += ($item->{$this->modelAmountKey} * $sessionData[$item->{$this->modelPrimaryKey}]);
+        }
+
+        return $amount;
+    }
+
+    /**
+     * @return array
+     */
+    public function getModelItems(): array
+    {
+        $sessionData = $this->retrieveSessionData();
+
+        if (empty($sessionData)) {
+            return [];
+        }
+
+        $modelClass = $this->modelClass;
+
+        $modelItems = [];
+        $selection = [$this->modelPrimaryKey, $this->modelAmountKey];
+
+        foreach ($this->modelAdditionKeys as $additionKey) {
+            $selection[] = $additionKey;
+        }
+
+        $models = $modelClass::find()->where(['in', $this->modelPrimaryKey, array_keys($sessionData)])->select($selection)->all();
+
+        foreach ($models as $model) {
+            $modelItems[$model->{$this->modelPrimaryKey}] = $model;
+        }
+
+        return $modelItems;
+    }
+}

composer.json

@@ -19,12 +19,12 @@
         "yiisoft/yii2": "~2.0.14",
         "yiisoft/yii2-bootstrap": "~2.0.0",
         "yiisoft/yii2-swiftmailer": "~2.0.0",
-        "itstructure/yii2-admin-module": "~1.8.1",
+        "itstructure/yii2-admin-module": "~1.8.2",
         "itstructure/yii2-multi-level-menu": "~3.2.6",
-        "itstructure/yii2-multi-format-uploader": "~3.0.1",
+        "itstructure/yii2-multi-format-uploader": "~3.0.2",
         "google/recaptcha": "^1.2",
         "itstructure/yii2-sitemap-generator": "~1.0.0",
-        "itstructure/yii2-rbac-module": "~3.0.1"
+        "itstructure/yii2-rbac-module": "~3.0.2"
     },
     "require-dev": {
         "yiisoft/yii2-debug": "~2.0.0",