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保存訂單對(duì)象時(shí)除了更新sales_flat_order表厉熟，還會(huì)：

• _beforeSave方法
• _afterSave方法
• order_save_after事件

before save

• 檢查state
• 設(shè)置店名
• 設(shè)置訂單號(hào)

magento自帶的通過對(duì)象的方式生成訂單號(hào)的做法影響下單時(shí)的性能刃鳄，可以通過redis的方式自動(dòng)生成訂單號(hào)

• 設(shè)置item數(shù)量
• 設(shè)置用戶id
• 設(shè)置賬單地址
• 設(shè)置物流地址

 protected function _beforeSave()
    {
        parent::_beforeSave();//觸發(fā)model_save_before和core_abstract_save_before事件
        $this->_checkState();//檢查state滥崩，注1
        if (!$this->getId()) {//新建訂單設(shè)置store名稱
            $store = $this->getStore();
            $name = array($store->getWebsite()->getName(),$store->getGroup()->getName(),$store->getName());
            $this->setStoreName(implode("\n", $name));
        }

        if (!$this->getIncrementId()) {//沒有訂單號(hào)
            $incrementId = Mage::getSingleton('eav/config')
                ->getEntityType('order')
                ->fetchNewIncrementId($this->getStoreId());//生成訂單號(hào)，注2
            $this->setIncrementId($incrementId);//設(shè)置訂單號(hào)
        }

        /**
         * Process items dependency for new order
         */
        if (!$this->getId()) {
            $itemsCount = 0;
            foreach ($this->getAllItems() as $item) {
                $parent = $item->getQuoteParentItemId();
                if ($parent && !$item->getParentItem()) {
                    $item->setParentItem($this->getItemByQuoteItemId($parent));
                } elseif (!$parent) {
                    $itemsCount++;
                }
            }
            // Set items count
            $this->setTotalItemCount($itemsCount);
        }
        if ($this->getCustomer()) {
            $this->setCustomerId($this->getCustomer()->getId());
        }

        if ($this->hasBillingAddressId() && $this->getBillingAddressId() === null) {
            $this->unsBillingAddressId();
        }

        if ($this->hasShippingAddressId() && $this->getShippingAddressId() === null) {
            $this->unsShippingAddressId();
        }

        $this->setData('protect_code', substr(md5(uniqid(mt_rand(), true) . ':' . microtime(true)), 5, 6));
        return $this;
    }

其中，checkState方法有一個(gè)注意事項(xiàng)：
如果訂單實(shí)付金額為0（使用了優(yōu)惠券等情況下）牌借，訂單的state不是canceled拔稳，也不是complete诡宗，那么就會(huì)被置為closed

protected function _checkState()
    {
        if (!$this->getId()) {//新建的訂單下面的代碼不會(huì)生效
            return $this;
        }

        $userNotification = $this->hasCustomerNoteNotify() ? $this->getCustomerNoteNotify() : null;//通知顧客

        if (!$this->isCanceled()
            && !$this->canUnhold()
            && !$this->canInvoice()
            && !$this->canShip()) {
            if (0 == $this->getBaseGrandTotal() || $this->canCreditmemo()) {
                if ($this->getState() !== self::STATE_COMPLETE) {
                    $this->_setState(self::STATE_COMPLETE, true, '', $userNotification);
                }
            }
            /**
             * Order can be closed just in case when we have refunded amount.
             * In case of "0" grand total order checking ForcedCanCreditmemo flag
             */
            elseif (floatval($this->getTotalRefunded()) || (!$this->getTotalRefunded()
                && $this->hasForcedCanCreditmemo())
            ) {
                if ($this->getState() !== self::STATE_CLOSED) {
                    $this->_setState(self::STATE_CLOSED, true, '', $userNotification);
                }
            }
        }

        if ($this->getState() == self::STATE_NEW && $this->getIsInProcess()) {
            $this->setState(self::STATE_PROCESSING, true, '', $userNotification);
        }
        return $this;
    }

after save

protected function _afterSave()
    {
        if (null !== $this->_addresses) {
            $this->_addresses->save();
            $billingAddress = $this->getBillingAddress();
            $attributesForSave = array();
            if ($billingAddress && $this->getBillingAddressId() != $billingAddress->getId()) {
                $this->setBillingAddressId($billingAddress->getId());
                $attributesForSave[] = 'billing_address_id';
            }

            $shippingAddress = $this->getShippingAddress();
            if ($shippingAddress && $this->getShippigAddressId() != $shippingAddress->getId()) {
                $this->setShippingAddressId($shippingAddress->getId());
                $attributesForSave[] = 'shipping_address_id';
            }

            if (!empty($attributesForSave)) {
                $this->_getResource()->saveAttribute($this, $attributesForSave);
            }

        }
        if (null !== $this->_items) {
            $this->_items->save();
        }
        if (null !== $this->_payments) {
            $this->_payments->save();
        }
        if (null !== $this->_statusHistory) {
            $this->_statusHistory->save();
        }
        foreach ($this->getRelatedObjects() as $object) {
            $object->save();
        }
        return parent::_afterSave(); //觸發(fā)model_save_after和core_abstract_save_after事件
    }

監(jiān)控sales_order_save_after事件

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