随机和限制首页magento上的类别大拇指 [英] Randomise & limit Category thumbs on homepage magento
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问题描述
下面的代码仅显示类别12"中所有子类别的类别标记,以寻找一种将这个数字限制为6个类别并将其随机选择为这些类别的方法.
The following code simply displays the category thumbs for all subcategories in "category 12" im looking for a way to limit this number to 6 categories and have it be a random selection of those categories.
<ul class="brand_list">
<?php $media = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA); ?>
<?php $children = Mage::getModel('catalog/category')->getCategories(12); ?>
<?php foreach ($children as $category): ?>
<?php $category = Mage::getModel('catalog/category')->load($category->getId()); ?>
<li class="span3">
<a href="<?php echo $category->getUrl(); ?>">
<img alt="<?php echo $category->getName(); ?>" src="<?php echo $media; ?>/catalog/category/<?php echo $category->getThumbnail(); ?>" />
</a>
</li>
<?php endforeach; ?>
</ul>
对于使用以下两段代码的产品,我之前使用过类似的代码:
i've used similar code before for products using the following two pieces of code:
<?php $collection->getSelect()->order('rand()'); ?>
<?php $_columnCount = $this->getColumnCount(); ?>
<?php $i=0; foreach ($collection->getItems() as $category): if($i==6){break;}?>
<?php if ($i++%$_columnCount==0): ?>
<?php endif ?>
我尝试重新编码以适合类别拇指,但是我似乎没有任何乐趣.
i have tried recoding this to suit the category thumbs but i don't seem to be having any joy.
推荐答案
您的问题的解决方案如下.我不会使用mysql rand()函数,因为它相当慢.
The solution to your question is bellow. I wouldn't use mysql rand() function since it's quite slow.
<ul class="brand_list">
<?php
$media = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);
$parentCategory = Mage::getModel('catalog/category')->load(12);
$children = Mage::getModel('catalog/category')
->getCollection()
->addIdFilter( array_rand( array_flip( $parentCategory->getAllChildren( true ) ), 6) )
->addAttributeToSelect('name')
->addAttributeToSelect('thumbnail');
?>
<?php foreach ($children as $category): ?>
<li class="span3">
<a href="<?php echo $category->getUrl(); ?>">
<img alt="<?php echo $category->getName(); ?>" src="<?php echo $media; ?>catalog/category/<?php echo $category->getThumbnail(); ?>" />
</a>
</li>
<?php endforeach; ?>
</ul>
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