Question

我正在尝试创建自定义模块（从权威指南复制粘贴）以在主页上显示随机产品。我开始使用Hello world这很好。但是，当我在主页上显示更多代码以显示产品时，它会给我以下错误。

Fatal error: Call to a member function getName() on a non-object in /opt/lampp/htdocs/magento/app/code/local/Magentotutorial/Definitivehello/Block/Randomproducts.php on line 12

这里是/app/code/local/Magentotutorial/Definitivehello/Block/Randomproducts.php

的代码

<?php
class Magentotutorial_Definitivehello_Block_Randomproducts 
    extends Mage_Core_Block_Template
{
    protected function _toHtml()
    {
        $randProdModel = Mage::getModel('Magentotutorial_Definitivehello/Randomproducts');
        $randProducts = $randProdModel->getRandomProducts();
        $html = "<ul>";
        foreach ($randProducts as $product) {
            $name = $product->getName();
            $price = number_format($product->getPrice(), 2);
            $imageLink = $this->helper('catalog/image')->init($product, 'thumbnail')->resize(100,100);
            $productLink = $this->helper('catalog/product')->getProductUrl($product);
            $html .= "<p><a href='$productLink'><img src='$imageLink' alt='$name'/></a><br/> $name <br/> $price </p>";
        }
        $html .= "<ul>";
        return $html;
    }
}

任何人都可以告诉我什么是错的。感谢

这里为GetRandomProducts（）方法提供了我的代码

<?php
class Magentotutorial_Definitivehello_Model_Randomproducts 
    extends Mage_Core_Model_Abstract
{
    public function getRandomProducts($maxCount = 3)
    {
        $randProducts = array();
        $allProducts = array();
        $productCollection = Mage::getModel('catalog/product')
            ->getCollection()
            ->addAttributeToSelect('*')
            ->getItems();

        foreach ($productCollection as $id => $data) {
            //print_r($data); exit;
            $allProducts[] = $data;
        }

        $productIds = array_keys($allProducts);
        $totalProductIds = count($productIds);
        for ($i=0; $i<$maxCount; $i++) {
            $randIndex = rand(0,$totalProductIds);
            $randProductId = $productIds[$randIndex];
            $randProducts[] = $allProducts[$randProductId];
        }
        return $randProducts;
    }
}

Answer 1

getRandomProducts模型的Magentotutorial_Definitivehello/Randomproducts看起来不会返回产品集合。

UPD：

以下是getRandomProduct方法的简化实现：

<?php
public function getRandomProducts($maxCount = 3)
{
    $productCollection = Mage::getModel('catalog/product')
        ->getCollection()
        ->addAttributeToSelect('*');

    $productCollection->getSelect()->order('RAND()')->limit($maxCount);

    return $productCollection;
}

致命错误：调用成员函数getName（）在magento中

1 个答案: