如何重写集合？

问题描述

我想重写 Mage :: getResourceModel（'sales / order_collection'）;

返回的集合

我的目标是重写这个资源，以便我可以过滤掉特定商店的集合。

有关如何做的任何想法吗？我试过直接重写销售/订单模块的收集，但没有成功。我可以重写销售/订单本身，但不是集合，因为当我调用 getCollection（）它返回

解决方案

p>我可以通过添加以下行到config.xml中重写。

 < global> 
<！ -   - > 
< models> 
< sales_mysql4> 
< rewrite> 
< order_collection> Company_ModelName_Model_Mysql4_Order_Collection< / order_collection> 
< / rewrite> 
< / sales_mysql4> 
< / models> 
<！ -   - > 
< / global>然后我将类Collection.php添加到扩展Mage_Sales_Model_Mysql4_Order_Collection的Model / Mysql4 / Order文件夹中。
 > 
 
 
运行以下代码时，即使覆盖了订单集合类，也会产生错误（调用非对象的成员函数joinAttribute（））：
 Mage： ：getResourceModel（'sales / order_collection'） - > addAttributeToSelect（'*'） - > joinAttribute（'billing_firstname'，'order_address / firstname'，'billing_address_id'，null，'left'）; 
 
 
 
如果将上面的行重新排列为以下3行，则不会产生错误：
 
 
 
 $ collection = Mage :: getResourceModel order_collection'）; 
 $ collection-> addAttributeToSelect（'*'）; 
 
 $ collection-> joinAttribute（'billing_firstname'，'order_address / firstname'，'billing_address_id'，null，'left'）; / p> 
 
 
我认为这是Magento中的一个错误。您认为吗？
 
 
 
感谢Margots 
 
I would like to rewrite the collection that is returned by Mage::getResourceModel('sales/order_collection');

My goal is to rewrite this resource so that i can filter out the collection for particular Store. 

Any ideas on how to do it? I tried directly rewrite collection of the sales/order module but no success. I was able to rewrite sales/order itself but not the collection, because when i call getCollection() it returns 
 解决方案 
I was able to rewrite by adding the following lines to the config.xml  
<global>
<!-- -->
<models>
  <sales_mysql4>
            <rewrite>
<order_collection>Company_ModelName_Model_Mysql4_Order_Collection</order_collection>
            </rewrite>
   </sales_mysql4>
</models>
<!-- -->
</global>
Then I add class Collection.php in the Model/Mysql4/Order folder that extends Mage_Sales_Model_Mysql4_Order_Collection  
Even though this overrides the order collection class it gives an error(Call to a member function joinAttribute() on non-object) when run the following code:         Mage::getResourceModel('sales/order_collection')->addAttributeToSelect('*')->joinAttribute('billing_firstname', 'order_address/firstname', 'billing_address_id', null, 'left');
It is not giving error if you rearrange the above line into the following 3 lines:
$collection = Mage::getResourceModel('sales/order_collection');$collection->addAttributeToSelect('*');
$collection->joinAttribute('billing_firstname', 'order_address/firstname', 'billing_address_id', null, 'left');
I think this is a bug in the Magento. What you think?
Thanks Margots
                        
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