丶妖冶叔叔
问题描述
我有以下几点:
$products = Mage::getModel('catalog/product')
->getCollection()
->addAttributeToSort('id', 'RAND()')
->addAttributeToSelect('small_image')
->addCategoryFilter(Mage::getModel('catalog/category')->load($catId));
但我需要按 id RAND() 订购，我该怎么做?(代码显示了我如何尝试但没有运气)
But I need to order by id RAND(), how can I do this? (The code shows how I've tried with no luck)
推荐答案
Magento 集合不接受选定属性之一以外的参数.在这种情况下，您应该获得 Zend_Db_Select 对象并向其添加订单指令.
Magento collection do not accept parameters other then one of selected attribute. In this case you should get Zend_Db_Select object and add order instruction to it.
$products = Mage::getModel('catalog/product')
->getCollection()
->addAttributeToSort()
->addAttributeToSelect('small_image')
->addCategoryFilter(Mage::getModel('catalog/category')->load());
$products->getSelect()->order(new Zend_Db_Expr('RAND()'));
要查看将执行什么查询，您可以使用此构造
To see what query will be executed you may use this construnction
$products->load(true, true); // first parameter show sql query in output, second show sql query in var/log/syslog
