在分层导航页面标题的修改中添加例外

Question

我们正在使用以下代码 app/code/local/Mage/Page/Block/Html/Head.php 检测何时从分层导航中活跃过滤器，然后根据此来调整页面标题和元描述。 DesignEnd.

public $layerFilters;
public $currentFilters;
public function getLayersMeta(){

    $this->layerFilters = '';
    $state_block = $this->getLayout()->createBlock("catalog/layer_state");
    $this->currentFilters = $state_block->getActiveFilters();

    if(!empty($this->currentFilters)) {
        foreach($this->currentFilters as $filter) {

            $this->layerFilters .= ($this->layerFilters!='') ? ', '.$filter->getName() : $filter->getName();

            $attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', $filter->getFilter()->getRequestVar());
            foreach($attribute->getSource()->getAllOptions(true, true) as $option) {
                if($filter->getValue() == $option['value']) {
                    $this->layerFilters .= ' - '.strtr($option['label'],array('"'=>"''"));
                }
            }
        }
        $this->layerFilters = ($this->layerFilters!='') ? $this->__('Shopping by: ').$this->layerFilters.' - ' : '';
    }

这效果很好，并在URL中使用分层导航过滤器（查询参数）的所有页面的页面标题中添加了其他数据。

我们想做的是在 getLayersMeta 过滤器时，以不同的方式格式化页面标题的函数 制造商.

我不确定我是否需要添加 elseif 捕获查询参数“制造商”的声明喜欢 if($this->getRequest()->getParam('manufacturer') {}.

用 @mpaepper的答案扩展...

/**
 * Modifying the page titles for layered navigation (filters) pages.
 *
 * 
 * 
 */ 
public $layerFilters;
public $currentFilters;
public $orderBy;
public $currentPage;
public function getLayersMeta(){

    $manufacturer = Mage::app()->getRequest()->getParam('manufacturer');
       if (!empty($manufacturer)) {
       $this->_handleManufacturerMeta();
       return false;
    }

    $this->layerFilters = '';
    $state_block = $this->getLayout()->createBlock("catalog/layer_state");
    $this->currentFilters = $state_block->getActiveFilters();

    if(!empty($this->currentFilters)) {
        foreach($this->currentFilters as $filter) {

            $this->layerFilters .= ($this->layerFilters!='') ? ', '.$filter->getName() : $filter->getName();

            $attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', $filter->getFilter()->getRequestVar());
            foreach($attribute->getSource()->getAllOptions(true, true) as $option) {
                if($filter->getValue() == $option['value']) {
                    $this->layerFilters .= ' - '.strtr($option['label'],array('"'=>"''"));
                }
            }
        }
        $this->layerFilters = ($this->layerFilters!='') ? $this->__('Shopping by: ').$this->layerFilters.' - ' : '';
    }

    $this->orderBy = '';

    if($this->getRequest()->getParam('order') && $this->getRequest()->getParam('dir')) {
        $this->orderBy .= $this->__('Sort by ').$this->__(htmlspecialchars($this->getRequest()->getParam('order')));
        $this->orderBy .= (htmlspecialchars($this->getRequest()->getParam('dir')) == 'asc') ? ', '.$this->__('ascending') : ', '.$this->__('descending');
    }

    if($this->getRequest()->getParam('limit') && is_numeric($this->getRequest()->getParam('limit'))) {
        $this->orderBy .= (($this->orderBy!='') ? ', ' : $this->__('show')).' '.$this->getRequest()->getParam('limit').' '.$this->__('per page');
    }

    if($this->getRequest()->getParam('p') && is_numeric($this->getRequest()->getParam('p'))) {
        $this->currentPage = $this->__('Page').' '.$this->getRequest()->getParam('p').' - ';
    }

    $this->orderBy = ($this->orderBy!='') ? $this->orderBy.' - ' : '';

    return $this->layerFilters.$this->orderBy.$this->currentPage;
}

protected function _handleManufacturerMeta() {
        // Add manufacturer metas
    }

Answer 1

是的，这将是一个选择：

public function getLayersMeta() {
   $manufacturer = Mage::app()->getRequest()->getParam('manufacturer');
   if (!empty($manufacturer)) {
       return $this->_handleManufacturerMeta();
   }

   // Your other logic which handles everything but manufacturer
}

protected function _handleManufacturerMeta() {
   $manufacturer = $this->getRequest()->getParam('manufacturer');
   $manufacturerValue = '';
   $attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', 'manufacturer');
        foreach($attribute->getSource()->getAllOptions(true, true) as $option) {
            if($manufacturer == $option['value']) {
                $manufacturerValue = $option['label'];
            }
        }
   return $this->__('My manufacturer is: ').$manufacturerValue;
}

编辑：我更新了示例并添加了示例代码。方法_handleManfucturermeta需要您的自定义代码来显示您想要的制造商的文本。逻辑是，当getlayersmeta（）方法检测制造商时，它将返回_handlemanfucturersmeta的文本。如果没有，它将返回您到目前为止所拥有的文本。

不过，请注意，块条目描述的方式不是很好（在本地代码空间中覆盖核心类） - 最好使用重写甚至更好的观察者。