Magento 1.14.2.2在PLP上翻转图像

Posted 2021-03-31

嘿，我最近添加了一行代码，可以在产品列表页面中滚动图像时显示缩略图。

onmouseover="this.src='<?php echo $this->helper('catalog/image')->init($_product, 'thumbnail')->constrainOnly(FALSE)->keepAspectRatio(TRUE)->keepFrame(FALSE)->resize($_imgSize) ?>';" onmouseout="this.src='<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->constrainOnly(FALSE)->keepAspectRatio(TRUE)->keepFrame(FALSE)->resize($_imgSize) ?>';"/>

这行添加在/template/catalog/product/list.phtml文件中，所以现在它的图像代码如下：

 <a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" class="product-image"><img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(283, null)->keepFrame(false); ?>" alt="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" 
        onmouseover="this.src='<?php echo $this->helper('catalog/image')->init($_product, 'thumbnail')->constrainOnly(FALSE)->keepAspectRatio(TRUE)->keepFrame(FALSE)->resize($_imgSize) ?>';" onmouseout="this.src='<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->constrainOnly(FALSE)->keepAspectRatio(TRUE)->keepFrame(FALSE)->resize($_imgSize) ?>';"/>
        </a>

检查我的system.log文件时，收到以下错误消息：

注意：未定义的变量：_ varg /在/ var / www / deploy / releases / 20180227152715 / app / design / frontend / my theme / my theme / template / catalog / product / list.phtml在56行

我知道必须在这里定义_imgSize变量

<?php
$_productCollection=$this->getLoadedProductCollection();
$_helper = $this->helper('catalog/output');
 $_imgSize = null;//not defining rollover image deminsions
?>

我只是不知道_imgSize将被定义为什么。有人能指出我正确的方向吗？

谢谢

答案

您为此函数提供的参数是以像素为单位的大小。这是它的定义：

/**
 * Schedule resize of the image
 * $width *or* $height can be null - in this case, lacking dimension will be calculated.
 *
 * @see Mage_Catalog_Model_Product_Image
 * @param int $width
 * @param int $height
 * @return Mage_Catalog_Helper_Image
 */
public function resize($width, $height = null)
{
    $this->_getModel()->setWidth($width)->setHeight($height);
    $this->_scheduleResize = true;
    return $this;
}