1 <?php
  2 
  3 /**
  4  * Элемент заказа
  5  *
  6  * @package cart
  7  * @author inxo, menedem, dvp
  8  */
  9 class OrderItem extends DataObject {
 10 
 11     // кол-во товара
 12     protected $_quantity;
 13     protected $_title;
 14     protected $_price;
 15     protected $_id;
 16     // id-товара
 17     protected $_productId;
 18     // id-вариации
 19     protected $_variationId = 0;
 20 
 21     public static $db = array(
 22         'Title' => 'Text',
 23         'ItemPrice' => 'CatalogPrice',
 24         'Quantity' => 'Int'
 25     );
 26 
 27     public static $has_one = array(
 28         'Order' => 'Order',
 29         'Linked' => 'Product',
 30     );
 31 
 32     public static $summary_fields = array('ImportID', 'Title', 'ItemPrice', 'Quantity', 'TotalPrice');
 33 
 34     public static $casting = array(
 35         'Price' => 'CatalogPrice',
 36         'ItemPrice' => 'CatalogPrice',
 37         'TotalPrice' => 'CatalogPrice',
 38         'ImportID' => 'Varchar',
 39         'Link' => 'Varchar'
 40     );
 41     
 42     function getCMSFields() {
 43         $fields = parent::getCMSFields();
 44         $fields->removeByName('LinkedID');
 45         $fields->removeByName('Order');
 46         $fields->replaceField('Title', new OrderItemField('LinkedID', _t('Cart.ProductTitle', 'Title')));
 47         $fields->removeByName('ItemPrice');
 48 
 49         return $fields;
 50     }
 51 
 52     function fieldLabels($includerelations = true) {
 53         $labels = parent::fieldLabels($includerelations);
 54         $labels['TotalPrice'] = _t('OrderItem.TotalPrice', 'Total Price');
 55         $labels['ImportID'] = singleton('Product')->fieldLabel('ImportID');
 56         $labels['Link'] = _t('OrderItem.Link', 'Product Link');
 57         return $labels;
 58     }
 59 
 60     public function __construct($product = null, $quantity = 1) {
 61         parent::__construct();
 62         
 63         if (is_array($product)) {
 64             $this->ID = $this->_id = $product['ID'];
 65             $this->Title = $this->_title = $product['Title'];
 66             $this->ItemPrice = $this->_price = $product['ItemPrice'];
 67             $this->LinkedID = $this->_productId = $product['LinkedID'];
 68             $this->OrderID = $product['OrderID'];
 69             $this->_quantity = $quantity;
 70             $this->Quantity = $this->_quantity = $product['Quantity'];
 71             if (isset($product['VariationID']))
 72                 $this->VariationID = $this->_variationId = $product['VariationID'];
 73             // !!! почему только для массивов ?
 74             $this->extend('updateConstructor', $product);
 75         }
 76 
 77         if (is_object($product)) {
 78             $this->_productId = $product->ID;
 79             $this->_quantity = $quantity;
 80             $this->Title = $this->_title = $product->Title;
 81             $this->_price = $this->getPrice();
 82             if (isset($product->VariationID))
 83                 $this->VariationID = $this->_variationId = $product->VariationID;
 84         }
 85     
 86     }
 87 
 88     public function Order() {
 89         if ($this->ID) {
 90             return DataObject::get_by_id('Order', $this->OrderID);
 91         } else {
 92             if ($this->Order) {
 93                 return $this->Order;
 94             } else {
 95                 return Cart::current_order();
 96             }
 97         }
 98     }
 99 
100     /**
101      * Сравнение элементов заказа
102      * @param OrderItem элемент заказа
103      * @return Boolean
104      */
105     function hasSameContent($orderItem) {
106         $rs = $orderItem instanceof OrderItem && $this->_productId == $orderItem->_productId;
107         $rs = $rs && ($this->_variationId == $orderItem->_variationId);
108 
109         if ($rs) {
110             $this->extend('hasSameContent', $orderItem, $rs);
111         }
112         return $rs;
113     }
114 
115     function getProduct() {
116         $product = false;
117         if($this->_variationId){
118             $product = DataObject::get_by_id('ProductVariation', $this->_variationId);
119         }
120         if($this->_productId){
121             $product = DataObject::get_by_id('Product', $this->_productId);
122         }
123         if(!$product && $this->_productId){
124             $product = Versioned::get_by_stage('Product', 'Stage', "SiteTree.ID = {$this->_productId}");
125             if($product){
126                 $product = $product->pop();
127             }
128         }
129 
130         return $product;
131 
132         // // Здравствуйте я умею в тернарные, но не умею в простой и понятный код.
133         // return ($this->_variationId) ? DataObject::get_by_id('ProductVariation', $this->_variationId) : (($this->_productId) ? DataObject::get_by_id('Product', $this->_productId) : false);
134     }
135 
136     function getProductID() {
137         $productID = $this->_productId;
138         if ($this->_variationId) {
139             $productID .= "_{$this->_variationId}";
140         }
141         $this->extend('updateProductID', $productID);
142         return $productID;
143     }
144 
145     function getImportID() {
146         $product = $this->getProduct();
147         return ($product) ? $product->ImportID : false;
148     }
149 
150     function getItemsPrice() {
151         return $this->getPrice() * $this->_quantity; //специально реализованная ф-ия получения цены              
152     }
153 
154     function onBeforeWrite() {
155         // изменили при редактировании заказа
156         if ($this->isChanged('LinkedID')) {
157             $this->_productId = $this->LinkedID;
158         }
159 
160         if (!$this->isInDB() && $this->_productId) {
161             $this->LinkedID = $this->_productId; // связанный продукт
162             if ($product = $this->getProduct()) {
163                 $this->Title = $product->Title;
164             }
165             if (!isset($this->record['ItemPrice'])) { // Если цена элемента не задана (она может быть задана при специальном добавлении в корзину, напр. товары с параметром)
166                 $this->ItemPrice = $this->getPrice(); // то берем ее из товара
167             }
168         }
169         //else return; // выругаться что не выбран товар!!!               
170         if (!$this->isChanged('Quantity')) {
171             $this->Quantity = $this->_quantity;
172         }
173         
174         parent::onBeforeWrite();
175     }
176 
177     /*
178      * Операции с количеством
179      */
180 
181     /**
182      * Текущее кол-во
183      * @return Int
184      */
185     public function getQuantity() {
186         return $this->_quantity;
187     }
188 
189     public function getPrice() {        
190         if ($this->isInDB()) {
191             $this->_price = $this->ItemPrice;           
192         } else {
193             if ($product = $this->getProduct()) {
194                 $this->_price = $product->Price($this->_quantity);
195             }           
196         }
197         $this->extend('updateItemPrice', $this->_price);
198         return ($this->_price) ? $this->_price : 0;
199     }
200 
201     public function Avaliable() {
202         if ($this->getProduct())
203             return true;
204         else
205             return false;
206     }
207 
208     public function getItemPrice() {
209         return $this->_price;
210     }
211 
212     public function getLink() {
213         $p = DataObject::get_by_id('Product', (int)$this->_productId);
214         return ($p) ? $p->Link() : null;
215     }
216 
217     public function getTitle() {
218         $title = $this->_title;
219         if ($this->_variationId && ($variation = $this->getProduct())) {
220             $title = $variation->Title;
221         }
222         $this->extend('updateItemTitle', $title);
223         return $title;
224     }
225 
226     /**
227      * Добавление кол-ва
228      * @param Int количество
229      */
230     public function addQuantityValue($quantity) {
231         if ($this->canAddQuantityValue($this->_quantity + $quantity)) {
232             $this->_quantity += $quantity;
233         }
234     }
235 
236     /**
237      * Установка кол-ва
238      * @param Int количество
239      */
240     public function setQuantityValue($quantity=null) {      
241         if ($this->canAddQuantityValue($quantity)) {        
242             $this->_quantity = $quantity;
243         }
244     }
245     
246     function canAddQuantityValue($quantity) {
247         $canAdd = true;
248         $this->extend('updateCanSetQuantity', $canAdd, $quantity);
249         return $canAdd;
250     }
251 
252     public function getTotalPrice() {
253         return ($this->getPrice() * $this->_quantity);
254         //return ($this->_price * $this->_quantity);
255     }
256     
257     function Currency() {
258         return SiteConfig::current_site_config()->CatalogCurrency;
259     }
260 
261     function updateForAjax(array &$js) {
262         $js[] = array(
263             'product' => array(
264                 'itemId' => $this->getProductID(),
265                 'Title' => $this->TableTitle(),
266                 'ItemPrice' => $this->getItemPrice(),
267                 'TotalPrice' => $this->getTotalPrice(),
268                 'Quantity' => $this->getQuantity()
269             )
270         );
271     }
272 
273     function TableTitle() { return $this->Title; }
274     function UnitPrice() { return $this->ItemPrice; }
275 
276     function PlusLink() {
277         return Cart_Controller::add_item_link($this->getProductID());
278     }
279 
280     function MinusLink() {
281         return Cart_Controller::remove_item_link($this->getProductID());
282     }
283 
284     function DeleteLink() {
285         return Cart_Controller::remove_item_link($this->getProductID());
286     }
287 
288     function SetQuantityLink() {
289         return Cart_Controller::set_quantity_item_link($this->getProductID());
290     }
291 }
292