网格列过滤器不适用于magento自定义模块中的两个模型

我正在使用magento后端的自定义模块，在使用filter calback时，此筛选器不起作用！ 有人能推荐我吗？ 谢谢

我试过这样的代码

Grid.php

protected function _prepareCollection()
    {
     $collection = Mage::getModel('listings/listings')->getCollection();
     $this->setCollection($collection);
       return parent::_prepareCollection();
    }
protected function _prepareColumns()
    {     
        $this->addColumn("item_id", array(
            "header" => Mage::helper("linkmanagement")->__("ID"),
            "align" => "center",
            "type" => "number",
            "index" => "item_id",

        ));

        $this->addColumn("title", array(
            "header" => Mage::helper("linkmanagement")->__("Title"),
            "index" => "title"
        ));

        $this->addColumn("cat_ids", array(
            "header" => Mage::helper("linkmanagement")->__("Cat ID"),
            "align" => "center",
            "index" => "cat_ids",
            "renderer" => 'Sathish_Linkmanagement_Block_Adminhtml_Linkmanagement_Renderer_Categories',
            'filter_condition_callback' => array($this, '_categoriesFilter')
        ));

        $this->addColumn("url_key", array(
            "header" => Mage::helper("linkmanagement")->__("URL"),
            "index" => "url_key",
            "width" => "200px",
        ));

        $this->addColumn('status',
            array(
                'header' => Mage::helper('linkmanagement')->__('Status'),
                'index' => 'status',
                'type' => 'options',
                'options' => array('1' => Mage::helper('linkmanagement')->__('Active'),
                    '0' => Mage::helper('linkmanagement')->__('Inactive')),
            )
        );

        return parent::_prepareColumns();
    }

class Sathish_Linkmanagement_Block_Adminhtml_Linkmanagement_Renderer_Categories extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract
{

    public function render(Varien_Object $row)
    {
        $value =  $row->getData($this->getColumn()->getIndex());
        // $value = 38,92
        $value = explode(',',$value);
        $collection = Mage::getModel("categories/categories")->getCollection()->addFieldToFilter('category_id',$value)->getData();
        foreach($collection as $col){
            $result[] = $col['title'];
        }
        $result = implode(',', $result);// $result = schools,colleges
        return $result;
    }
}

回调函数

protected function _categoriesFilter($collection, $column)
    {
        if (!$value = $column->getFilter()->getValue()) {
            return $this;
        }

        $this->getCollection()->getSelect()->where(
            "cat_ids ?"
            , "%$value%");
        return $this;
    }

Categories.php

protected function _prepareCollection()
    {
     $collection = Mage::getModel('listings/listings')->getCollection();
     $this->setCollection($collection);
       return parent::_prepareCollection();
    }
protected function _prepareColumns()
    {     
        $this->addColumn("item_id", array(
            "header" => Mage::helper("linkmanagement")->__("ID"),
            "align" => "center",
            "type" => "number",
            "index" => "item_id",

        ));

        $this->addColumn("title", array(
            "header" => Mage::helper("linkmanagement")->__("Title"),
            "index" => "title"
        ));

        $this->addColumn("cat_ids", array(
            "header" => Mage::helper("linkmanagement")->__("Cat ID"),
            "align" => "center",
            "index" => "cat_ids",
            "renderer" => 'Sathish_Linkmanagement_Block_Adminhtml_Linkmanagement_Renderer_Categories',
            'filter_condition_callback' => array($this, '_categoriesFilter')
        ));

        $this->addColumn("url_key", array(
            "header" => Mage::helper("linkmanagement")->__("URL"),
            "index" => "url_key",
            "width" => "200px",
        ));

        $this->addColumn('status',
            array(
                'header' => Mage::helper('linkmanagement')->__('Status'),
                'index' => 'status',
                'type' => 'options',
                'options' => array('1' => Mage::helper('linkmanagement')->__('Active'),
                    '0' => Mage::helper('linkmanagement')->__('Inactive')),
            )
        );

        return parent::_prepareColumns();
    }

class Sathish_Linkmanagement_Block_Adminhtml_Linkmanagement_Renderer_Categories extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract
{

    public function render(Varien_Object $row)
    {
        $value =  $row->getData($this->getColumn()->getIndex());
        // $value = 38,92
        $value = explode(',',$value);
        $collection = Mage::getModel("categories/categories")->getCollection()->addFieldToFilter('category_id',$value)->getData();
        foreach($collection as $col){
            $result[] = $col['title'];
        }
        $result = implode(',', $result);// $result = schools,colleges
        return $result;
    }
}

注意： 工作正常。，

---

只有筛选器回调函数不工作

我用自己的渲染器检查了您的示例，并尝试检查您的回调

在回调方法中替换

$this->getCollection()->getSelect()

与

以下是我的建议：

---

Magento筛选器假定不是100%相似。我的意思是，如果你想应用过滤器，你应该使用构造：

where("cat_ids LIKE ?", "%$value%");

---

我仍然不明白以下问题的答案：

---

定义不工作。有人调用过回调吗？是回拨吗 代码对结果没有影响？-李·萨弗里特1小时前

放置

Mage:：log（'blabla'，false，'grid.log'，true）位于回调方法的开头。然后检查这个日志文件。如果它不是空的-您的方法调用成功


如果您的方法调用-请尝试

Mage::log($collection->getSelectSQL(1), false, 'grid.log', true);

在应用过滤器之前和之后。并尝试在phpmyadmin中运行这些查询。检查结果


尝试在Mage\u Adminhtml\u Block\u Sales\u Order\u Grid类中应用这些更改

以下是我所做的：

    $this->addColumn("cat_ids", array(
        "header" => Mage::helper('sales')->__('Ship to Name'),
        "align" => "center",
        "index" => "grand_total",
        "renderer" => "My_Class_.....",
        "filter_condition_callback" => array($this, '_categoriesFilter')
    ));



定义不工作。有人调用过回调吗？回调代码对结果没有影响吗？“不工作”当我尝试筛选该列时，它不会返回筛选行使用回调时生成的SQL是什么？如果在应用回调过滤器时没有得到任何结果，那么您的查询可能是错误的。如果我使用
$collection
而不是
$this->getCollection（）->getSelect（）
显示了一个
致命错误：调用未定义的方法Sathish_Listings_Model_Mysql4_Listings_collection:：where（）
我使用两个模型“Listings/Listings”和“categories/categories”如果您区分my和您的代码，您将看到，您将$collection发送到您的函数，并且从未使用它。您将筛选器应用于另一个不使用的集合。我不确定，但我认为您的错误出现是因为您没有进行propper继承。而且你的收藏没有Zend方法。你的问题不涉及回调函数。您应该扩展Mage_Core_Model_Mysql4_Collection_Abstract。也许试着听从我最后的建议。当您的回调开始工作时，您可以将它一部分一部分地传输到您的模块。变体，我发布的是100%可行的。
public function render(Varien_Object $row)
{
    $value =  $row->getData('increment_id') . $row->getData('status');
    return $value;
}