Magento Observer添加命令网格列 - 模糊问题

Question

我已经解决了这个问题,最后!

基本上,我越来越WHERE部分用$where = $select->getPart('where'),然后我经过每一个条件和搜索created_at,如果我觉得有匹配的I替换created_at用main_table.created_at.

我已经对此进行了测试,一切正常,如果有什么东西可以"越野车"请告诉我.

谢谢大家!!

public function salesOrderGridCollectionLoadBefore($observer)
{

  $collection = $observer->getOrderGridCollection();
  $select     = $collection->getSelect();
  $select->joinLeft(array('custab' => 'my_custom_table'), 'main_table.entity_id = custab.order_id',array('custab.field_to_show_in_grid'));

  if ($where = $select->getPart('where')) {
      foreach ($where as $key=> $condition) {
          if (strpos($condition, 'created_at')) {
              $new_condition = str_replace("created_at", "main_table.created_at", $condition);
              $where[$key] = $new_condition;
          }
      }
      $select->setPart('where', $where);
  }

}

我正在尝试使用observer从自定义表中添加销售订单网格中的新列.一切正常,直到我尝试使用列过滤网格created_at.

问题是因为我created_at在自定义表和sales_flat_order_grid表中有相同的列名().

我收到了这个错误

SQLSTATE [23000]:完整性约束违规:1052 where子句中的'created_at'列不明确

如果我将此行编辑'index' => 'created_at' 为 'index' => '**main_table**.created_at',inapp/code/core/Mage/Adminhtml/Block/Sales/Order/Grid.php

$this->addColumn('created_at', array(
        'header' => Mage::helper('sales')->__('Purchased On'),
        'index' => 'main_table.created_at',
        'type' => 'datetime',
        'width' => '100px',
    ));

一切正常,但我不想更改核心文件或将它们复制到本地文件夹和编辑,我认为有一些简单的解决方案,我需要添加到我的观察者.

这是我的Observer.php

class Testinggrid_ExtendOrderGrid_Model_Observer{
    public function salesOrderGridCollectionLoadBefore($observer)
    {
       $collection = $observer->getOrderGridCollection();
       $select     = $collection->getSelect();
       $select->joinLeft(array('custab' => 'my_custom_table'), 'main_table.entity_id = custab.order_id',array('custab.field_to_show_in_grid'));
    }
}

这是我的模块布局

<layout>
  <sales_order_grid_update_handle>
    <reference name="sales_order.grid">
        <action method="addColumnAfter">
            <columnId>field_to_show_in_grid</columnId>
            <arguments>
                <header>Column header</header>
                <index>field_to_show_in_grid</index>
                <filter_index>field_to_show_in_grid</filter_index>
                <type>text</type>
            </arguments>
            <after>shipping_name</after>
        </action>
    </reference>
  </sales_order_grid_update_handle>
  <adminhtml_sales_order_grid>
    <!-- apply layout handle defined above -->
    <update handle="sales_order_grid_update_handle" />
  </adminhtml_sales_order_grid>
  <adminhtml_sales_order_index>
    <!-- apply layout handle defined above -->
    <update handle="sales_order_grid_update_handle" />
  </adminhtml_sales_order_index>
</layout>

Answer 1

您可以$collection->addFilterToMap('created_at', 'main_table.created_at');在观察者中使用