php – 使用getChildrenCategories-> getImageUrl(MAGENTO)获取类别图像

我在整个页面中使用这个$categories

$categories = Mage::getModel('catalog/category')
    ->getCollection()
    ->addAttributetoSelect('*')
    ->addAttributetoFilter('level',2)
    ->addisActiveFilter()
    ->addAttributetoSort('position'); 

foreach($categories as $cat) {$children=$cat->getChildrenCategories();}

选项1

//option 1 

$children  = $category->getChildren();
foreach(explode(',', $children) as $child):
$sub = Mage::getModel('catalog/category')->load($child);

$sub->getName() // this return ok, name show up
$sub->getimageUrl() // this return ok, image show up

选项2工作但由于某种原因无法获取图像URL.

//option 2 
$children  = $category->getChildrenCategories();
foreach($children as $sub):

$sub->getName() // this return ok, name show up
$sub->getimageUrl() // this return empty, image NOT show up so is other attribute beside name. 

谁能解释一下这个区别？我将如何选择2来解决这个问题

解决方法:

基本上,当我们使用getChildrenCategories()函数时,只从类别字段集合中检索了几个字段 – > url_key,name,all_children,is_anchor.

你可以在类Mage_Catalog_Model_Resource_Category上看到它.如果想从函数中获取tget图像url那么只需添加addAttributetoFilter(‘image’)

  $collection = $category->getCollection();
$collection->addAttributetoSelect('url_key')
    ->addAttributetoSelect('name')
    ->addAttributetoSelect('all_children')
    ->addAttributetoSelect('is_anchor')
    ->setorder('position', Varien_Db_Select::sql_ASC)
    ->joinUrlRewrite()
->addAttributetoFilter('is_active', 1)
    ->addIdFilter($category->getChildren())
->addAttributetoSelect('image');


foreach($category as $eachChildCat){

if ($image = $eachChildCat->getimage()) {
    $url = Mage::getBaseUrl('media').'catalog/category/'.$image;
    }
}

$eachChildCat-> getimage()不起作用然后使用$eachChildCat-> getResource() – > getimage()