symfony2中的EventDispatcher的项目使用

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项目使用：

$dispatcher = new EventDispatcher();$listener = new InventoryEventListener();$dispatcher->addListener('add_stock_history.action', array($listener,'addStockHistory'));$event = new InventoryEvent($record, $this->entityManager, $targetUser);$dispatcher->dispatch('add_stock_history.action', $event);

//inventoryEvent.php

class InventoryEventListener{    public function addStockHistory(InventoryEvent $event)    {        $record = $event->getRecord();        $entityManager = $event->getEntityManager();        $targetUser = $event->getTargetUser();        $operatorName = $targetUser->getName();        $inventoryQuantity = $record->getInventoryQuantity();        $operatorId = $targetUser->getId();        if ($record->getQuantity() != $inventoryQuantity) {            $stockHistory = new StockHistory();            $date = date('Y-m-d');            $description = "[$date] $operatorName ";            // 判断是盘存入库，还是盘存出库            if ($record->getQuantity() > $inventoryQuantity) {                $stockHistory->setAction(StockHistory::INVENTORY_OUTBOUND);                $description .= "盘存出库 ";            } else {                $stockHistory->setAction(StockHistory::INVENTORY_INBOUND);                $description .= "盘存入库 ";            }            $quantity = $record->getQuantity();            $description .= $record->getGoodsName();            $description .= " ";            $description .= $record->getMaterialSn();            $description .= " {$quantity} -> {$inventoryQuantity}";            $stockHistory->setQuantityBefore($record->getQuantity());            $stockHistory->setQuantityAfter($inventoryQuantity);            $stockHistory->setMaterialId($record->getMaterialId());            $stockHistory->setOperatorId($operatorId);            $stockHistory->setDescription($description);            $entityManager->persist($stockHistory);        }    }}

//inventoryEvent.php

class InventoryEvent extends Event{    protected $record;    protected $entityManager;    protected $targetUser;    public function __construct($record, ObjectManager $entityManager ,$targetUser)    {        $this->record = $record;        $this->entityManager = $entityManager;        $this->targetUser = $targetUser;    }    public function getRecord()    {        return $this->record;    }    public function getEntityManager()    {        return $this->entityManager;    }    public function getTargetUser()    {        return $this->targetUser;    }}

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