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2010-12-08T16:28:29.293
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2010-12-08T16:28:29.293
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After a lot of trial and error - a lot of error - I think I have it now. To begin with the <code>sales_flat_order_grid</code> is updated in <code>Mage_Sales_Model_Mysql4_Order_Abstract::updateGridRecords()</code>, by following the trail I worked out it inspects both the "main" table (<code>sales_flat_order</code>) and the main table + "_grid" (<code>sales_flat_order_grid</code>), takes the intersect of their columns and constructs a query from that. So any column you need in the grid table must also be in the main table. It's not an EAV-style entity so attributes don't need to be created. Here is my setup script: <pre><code><?php /* @var $this Nexxt_Booth_Model_Entity_Setup */ $installer = $this; $installer->getConnection()->addColumn($installer->getTable('sales_flat_order'), 'box_num', 'varchar(255)'); $installer->getConnection()->addColumn($installer->getTable('sales_flat_order_grid'), 'box_num', 'varchar(255)'); </code></pre> Next, I needed the extra column to show in all order tables in admin. To do this I overrode each relevant block. <pre><code><?xml version="1.0"?> <config> .... <global> <blocks> <adminhtml> <rewrite> <customer_edit_tab_view_orders>  My_Module_Block_Adminhtml_Customer_Edit_Tab_View_Orders </customer_edit_tab_view_orders> <customer_edit_tab_orders>  My_Module_Block_Adminhtml_Customer_Edit_Tab_Orders </customer_edit_tab_orders> <sales_order_grid>  My_Module_Block_Adminhtml_Sales_Order_Grid </sales_order_grid> </rewrite> </adminhtml> </blocks> </global> </config> </code></pre> In <code>My/Module/Block/Adminhtml/Sales/Order/Grid.php</code> I made the following: <pre><code><?php class My_Module_Block_Adminhtml_Sales_Order_Grid extends Mage_Adminhtml_Block_Sales_Order_Grid protected function _prepareColumns() { $this->addColumn('box_num', array( 'header' => $this->__('Box #'), 'index' => 'box_num', 'width' => '100px' )); $this->addColumnsOrder('box_num', 'shipping_name'); return parent::_prepareColumns(); } } </code></pre> Similarly, in <code>My/Module/Block/Adminhtml/Customer/Edit/Tab/Orders.php</code> and <code>My/Module/Block/Adminhtml/Customer/Edit/Tab/View/Orders.php</code> I added this function: <pre><code> protected function _prepareColumns() { $this->addColumn('box_num', array( 'header' => $this->__('Box #'), 'index' => 'box_num', 'width' => '100px' )); $this->addColumnsOrder('box_num', (Mage::app()->isSingleStoreMode() ? 'grand_total' : 'store_id')); return parent::_prepareColumns(); } </code></pre> Finally, to finish off, in the event <code>sales_convert_quote_to_order</code> I populated the new field. This bit isn't as important, so long as you add the data at a point before the order is saved. <pre><code>$order->setBoxNum('DATA GOES HERE'); </code></pre>
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