我最近一直致力于扩展。但是，我只是遇到了障碍，我想知道是否应该重新安装Magento。我遇到的问题昨天发生了。我相信我已将其追溯到根，但我不知道如何解决它。当我尝试提交订单时，在放置第一个订单后，我收到以下错误：
There was an error processing your order. Please contact us or try
again later.exception 'PDOException' with message 'SQLSTATE[23000]:
Integrity constraint violation: 1062 Duplicate entry '' for key
'UNQ_INCREMENT_ID'' in
/Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Statement/Pdo.php:228
Stack trace:
#0 /Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Statement/Pdo.php(228): PDOStatement->execute(Array)
#1 /Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#2 /Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#3 /Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('INSERT INTO `sa...', Array)
#4 /Users/jmax/Documents/websites/max_magento/lib/Varien/Db/Adapter/Pdo/Mysql.php(337): Zend_Db_Adapter_Pdo_Abstract->query('INSERT INTO `sa...', Array)
#5 /Users/jmax/Documents/websites/max_magento/lib/Zend/Db/Adapter/Abstract.php(574): Varien_Db_Adapter_Pdo_Mysql->query('INSERT INTO `sa...', Array)
#6 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Model/Mysql4/Abstract.php(414): Zend_Db_Adapter_Abstract->insert('sales_flat_orde...', Array)
#7 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Sales/Model/Mysql4/Order/Abstract.php(417): Mage_Core_Model_Mysql4_Abstract->save(Object(Mage_Sales_Model_Order))
#8 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Model/Abstract.php(318): Mage_Sales_Model_Mysql4_Order_Abstract->save(Object(Mage_Sales_Model_Order))
#9 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Model/Resource/Transaction.php(150): Mage_Core_Model_Abstract->save()
#10 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Sales/Model/Service/Quote.php(183): Mage_Core_Model_Resource_Transaction->save()
#11 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Sales/Model/Service/Quote.php(238): Mage_Sales_Model_Service_Quote->submitOrder()
#12 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Checkout/Model/Type/Onepage.php(745): Mage_Sales_Model_Service_Quote->submitAll()
#13 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Checkout/controllers/OnepageController.php(499): Mage_Checkout_Model_Type_Onepage->saveOrder()
#14 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Checkout_OnepageController->saveOrderAction()
#15 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action->dispatch('saveOrder')
#16 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#17 /Users/jmax/Documents/websites/max_magento/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front->dispatch()
#18 /Users/jmax/Documents/websites/max_magento/app/Mage.php(627): Mage_Core_Model_App->run(Array)
#19 /Users/jmax/Documents/websites/max_magento/index.php(80): Mage::run('', 'store')
#20 {main}
我尝试的第一件事：我完全禁用了我的扩展程序。所以，它不是我的扩展，但也许它导致了导致这种情况的数据库的一些变化。我一直在使用正确的编码方法开发我的扩展（不是修改核心文件，而是扩展而不是尽可能地覆盖）。
好像没有设置订单的增量ID！我回到了Mage_Eav_Model_Entity_Type - ＆gt; fetchNewIncrementId（第141行），发现在找到没有增量模型后，它在第145行返回void：
144: if (!$this->getIncrementModel()) {
145: return false;
146: }
并且，这是导致问题的SQL查询（显然它不是增量ID）：
INSERT INTO `sales_flat_order` (`coupon_code`, `protect_code`, `shipping_description`,
`is_virtual`, `store_id`, `customer_id`, `base_discount_amount`, `base_grand_total`,
`base_shipping_amount`, `base_shipping_tax_amount`, `base_subtotal`, `base_tax_amount`,
`base_to_global_rate`, `base_to_order_rate`, `discount_amount`, `grand_total`,
`shipping_amount`, `shipping_tax_amount`, `store_to_base_rate`, `store_to_order_rate`,
`subtotal`, `tax_amount`, `total_qty_ordered`, `customer_is_guest`, `customer_note_notify`,
`customer_group_id`, `gift_message_id`, `quote_id`, `base_shipping_discount_amount`,
`base_subtotal_incl_tax`, `shipping_discount_amount`, `subtotal_incl_tax`, `weight`,
`customer_dob`, `increment_id`, `applied_rule_ids`, `base_currency_code`, `customer_email`,
`customer_firstname`, `customer_lastname`, `customer_middlename`, `customer_prefix`,
`customer_suffix`, `customer_taxvat`, `discount_description`, `global_currency_code`,
`order_currency_code`, `remote_ip`, `shipping_method`, `store_currency_code`, `store_name`,
`x_forwarded_for`, `customer_note`, `created_at`, `updated_at`, `total_item_count`,
`customer_gender`, `hidden_tax_amount`, `base_hidden_tax_amount`, `shipping_hidden_tax_amount`,
`base_shipping_hidden_tax_amount`, `shipping_incl_tax`, `base_shipping_incl_tax`) VALUES (NULL,
'aa53a6', 'Flat Rate - Fixed', '0', '1', '4', '0', '55', '5', '0', '50', '0', '1', '1', '0',
'55', '5', '0', '1', '1', '50', '0', '1', '0', '1', '1', NULL, '38', '0', '50', '0', '50',
'1', NULL, '', '', 'USD', 'email@gmail.com', 'J', 'Max', NULL, NULL, NULL, NULL, '', 'USD',
'USD', '127.0.0.1', 'flatrate_flatrate', 'USD',
'Main Website\nMain Website Store\nDefault Store View', NULL, NULL, '2011-07-19 15:23:28',
'2011-07-19 15:23:28', '1', NULL, '0', '0', '0', '0', '5', '5')
我可以提供任何其他信息来帮助解决问题吗？非常感谢你！
JMAX
答案 0 :(得分：3)
您是否在销售/订单模型中添加了任何属性？在这种情况下，如果在添加属性时未指定增量模型，则销售/订单将丢失其增量模型。即使您再次关闭分机，这也会保留。
$installer->installEntities(
'order' => array(
'entity_model' => 'order',
'table' => 'sales/order',
'increment_model' => 'eav/entity_increment_numeric', //<-- This is important and might have caused the trouble!!!
'increment_per_store' => true,
'backend_prefix' => 'sales_entity/order_attribute_backend',
'attributes' => array(
'my_new_attribute' => array(
'label' => 'Omx Gift Certificates',
'type' => 'text',
'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL,
'visible' => true,
'required' => false,
'user_defined' => true,
),
)
);
如果是源，您可以执行以下操作：
从sales_flat_order表中删除添加的列（在本例中为my_new_attribute）并重新运行扩展的安装程序（当然使用指定的increment_model ...）。
学家
答案 1 :(得分：1)
我不确定这应该是一个答案，但我需要一些空间，这篇文章甚至可能有用，所以我发布它作为答案;
由于$ this-＆gt; getIncrementModel（）失败，我认为您应该检查数据库是否正常。 我在我安装的一个magent上做了一些查询，结果如下：
mysql> select * from eav_entity_store;
+-----------------+----------------+----------+------------------+-------------------+
| entity_store_id | entity_type_id | store_id | increment_prefix | increment_last_id |
+-----------------+----------------+----------+------------------+-------------------+
| 1 | 1 | 0 | 0 | 000008430 |
| 2 | 11 | 1 | 1 | 100017253 |
| 3 | 16 | 1 | 1 | 100015639 |
| 4 | 19 | 1 | 1 | 100003448 |
| 5 | 23 | 1 | 1 | 100000676 |
| 6 | 11 | 3 | 3 | 300000088 |
| 7 | 19 | 3 | 3 | 300000019 |
| 8 | 16 | 3 | 3 | 300000072 |
| 9 | 11 | 4 | 4 | 400000004 |
| 10 | 11 | 5 | 5 | 500000102 |
| 11 | 16 | 5 | 5 | 500000049 |
| 12 | 11 | 7 | 7 | 700000001 |
| 13 | 16 | 7 | 7 | 700000001 |
| 14 | 23 | 3 | 3 | 300000003 |
| 15 | 19 | 5 | 5 | 500000006 |
+-----------------+----------------+----------+------------------+-------------------+
15 rows in set (0.00 sec)
mysql> select entity_type_id, entity_type_code, entity_model from eav_entity_type;
+----------------+----------------------+--------------------------------+
| entity_type_id | entity_type_code | entity_model |
+----------------+----------------------+--------------------------------+
| 1 | customer | customer/customer |
| 2 | customer_address | customer/address |
| 3 | catalog_category | catalog/category |
| 4 | catalog_product | catalog/product |
| 5 | quote | sales/quote |
| 6 | quote_item | sales/quote_item |
| 7 | quote_address | sales/quote_address |
| 8 | quote_address_item | sales/quote_address_item |
| 9 | quote_address_rate | sales/quote_address_rate |
| 10 | quote_payment | sales/quote_payment |
| 11 | order | sales/order |
| 12 | order_address | sales/order_address |
| 13 | order_item | sales/order_item |
| 14 | order_payment | sales/order_payment |
| 15 | order_status_history | sales/order_status_history |
| 16 | invoice | sales/order_invoice |
| 17 | invoice_item | sales/order_invoice_item |
| 18 | invoice_comment | sales/order_invoice_comment |
| 19 | shipment | sales/order_shipment |
| 20 | shipment_item | sales/order_shipment_item |
| 21 | shipment_comment | sales/order_shipment_comment |
| 22 | shipment_track | sales/order_shipment_track |
| 23 | creditmemo | sales/order_creditmemo |
| 24 | creditmemo_item | sales/order_creditmemo_item |
| 25 | creditmemo_comment | sales/order_creditmemo_comment |
+----------------+----------------------+--------------------------------+
25 rows in set (0.00 sec)
请对您的数据库执行相同的选择，然后比较结果。无论如何我会重新安装magento，但首先你应该找到并修复导致数据损坏的错误（如果有的话）。