任何人都可以给我一个关于如何加载产品的媒体库以及集合的提示。 我收到这样的收藏:
$collection = Mage::getModel('catalog/product')->getCollection()
->addStoreFilter($storeId)
->addAttributeToFilter('status', Mage_Catalog_Model_Product_Status::STATUS_ENABLED);
foreach ($collection as $product) {
var_dump($product->getMediaGalleryImages());
}
但getMediaGalleryImages()会返回null
。我知道我可以使用$product = Mage::getModel('catalog/product')->load($product->getId())
单独加载每个产品,但我想避免这种情况,因为它会导致不必要的工作量。
谢谢!
答案 0 :(得分:18)
如果有人在寻找另一种方法,我发现这是有用的(只有一种情况,所以没有保证!):
请务必先$collection->addAttributeToSelect(’image’);
,然后在循环收集产品时,执行:
$attributes = $product->getTypeInstance(true)->getSetAttributes($product);
$media_gallery = $attributes[’media_gallery’];
$backend = $media_gallery->getBackend();
$backend->afterLoad($product); //this loads the media gallery to the product object
不确定是否所有这些都是必要的,但我很着急。在我的特定情况下,我试图使用$product->getImageUrl();
获取图像网址,这种方法对我有用。
希望它可以帮助别人。
答案 1 :(得分:9)
我最近必须做同样的,最快的方法:
class My_Module_Block_Name extends Mage_Catalog_Block_Product_View_Abstract
{
/** @var null|Mage_Catalog_Model_Resource_Eav_Attribute */
protected static $_mediaGalleryBackend = null;
public function getGalleryImages()
{
$product = $this->getProduct();
$this->_getBackend()->afterLoad($product);
$collection = $product->getMediaGalleryImages();
return $collection;
}
/**
* @return Mage_Catalog_Model_Resource_Eav_Attribute
*/
protected function _getBackend() {
if (self::$_mediaGalleryBackend === null) {
$mediaGallery = Mage::getSingleton('eav/config')
->getAttribute(Mage_Catalog_Model_Product::ENTITY, 'media_gallery');
self::$_mediaGalleryBackend = $mediaGallery->getBackend();
}
return self::$_mediaGalleryBackend;
}
}
答案 2 :(得分:2)
试试这个
$collection = Mage::getModel('catalog/product')->getCollection()
->addStoreFilter($storeId)
->addAttributeToSelect(array('image', 'media_gallery'))
->addAttributeToFilter('status', Mage_Catalog_Model_Product_Status::STATUS_ENABLED);
foreach ($collection as $product) {
var_dump($product->getMediaGallery());
}
答案 3 :(得分:1)
您将不得不使用:
// Returns the Media Gallery Images
Mage::getModel(’catalog/product’)->load(productid)->getMediaGalleryImages();
答案 4 :(得分:1)
它可以直接在循环中使用:
foreach ($collection as $product) { $product->getResource()->getAttribute('media_gallery')->getBackend()->afterLoad($product); foreach ($product->getMediaGalleryImages() as $image) { var_dump($image->debug()); } }
答案 5 :(得分:0)
使用涉及产品的自定义集合时的秘诀是init
方法的第三个参数。至少对我来说是这样。这样,我不需要加载整个产品并运行昂贵的查询 ...
因此,有了代表$product
实例的自定义Mage_Catalog_Model_Product
,但是从我的自定义集合中,我可以做到:
(string)Mage::helper('catalog/image')->init($product, 'small_image', $product->getImage())
我还需要将image
属性添加到我的自定义集合中,并通过向其中添加->addAttributeToSelect(['image'])
来实现。
您还可以相应地调整图像大小...
(string)Mage::helper('catalog/image')->init($product, 'small_image', $product->getImage())->resize($width, $height=null)
希望这会有所帮助。
答案 6 :(得分:-6)
这是一个将媒体库添加到集合的功能:
// Source: http://www.magentocommerce.com/boards/viewthread/17414/#t141830
public function addMediaGalleryAttributeToCollection(Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Collection $_productCollection) {
$_mediaGalleryAttributeId = Mage::getSingleton('eav/config')->getAttribute('catalog_product', 'media_gallery')->getAttributeId();
$_read = Mage::getSingleton('core/resource')->getConnection('catalog_read');
$_mediaGalleryData = $_read->fetchAll('
SELECT
main.entity_id, `main`.`value_id`, `main`.`value` AS `file`,
`value`.`label`, `value`.`position`, `value`.`disabled`, `default_value`.`label` AS `label_default`,
`default_value`.`position` AS `position_default`,
`default_value`.`disabled` AS `disabled_default`
FROM `catalog_product_entity_media_gallery` AS `main`
LEFT JOIN `catalog_product_entity_media_gallery_value` AS `value`
ON main.value_id=value.value_id AND value.store_id=' . Mage::app()->getStore()->getId() . '
LEFT JOIN `catalog_product_entity_media_gallery_value` AS `default_value`
ON main.value_id=default_value.value_id AND default_value.store_id=0
WHERE (
main.attribute_id = ' . $_read->quote($_mediaGalleryAttributeId) . ')
AND (main.entity_id IN (' . $_read->quote($_productCollection->getAllIds()) . '))
ORDER BY IF(value.position IS NULL, default_value.position, value.position) ASC
');
$_mediaGalleryByProductId = array();
foreach ($_mediaGalleryData as $_galleryImage) {
$k = $_galleryImage['entity_id'];
unset($_galleryImage['entity_id']);
if (!isset($_mediaGalleryByProductId[$k])) {
$_mediaGalleryByProductId[$k] = array();
}
$_mediaGalleryByProductId[$k][] = $_galleryImage;
}
unset($_mediaGalleryData);
foreach ($_productCollection as &$_product) {
$_productId = $_product->getData('entity_id');
if (isset($_mediaGalleryByProductId[$_productId])) {
$_product->setData('media_gallery', array('images' => $_mediaGalleryByProductId[$_productId]));
}
}
unset($_mediaGalleryByProductId);
return $_productCollection;
}
以下用法示例:
$products = Mage::getModel('catalog/product')->getCollection()->addAttributeToSelect('*');
$this->addMediaGalleryToArray($products);