产品收集和过滤器Magento

Question

I have a custom attribute called groupId and I have about 1000 products and they all have groups of 4 products sharing the same groupId .

Now I have a category I want to display these products in but I only want to show one of the 4 products from each group.

So I thought that I can filter this and match a collection against the products in the category and insert them if there is no match and so on . But the collection loads all products once so if I loop through the collection it won't notis the product that was inputed during that run .

Is there some one that has a suggestion to approach this

Answer 1

您可以使用MySQL的DISTINCT来确保每个组中都有一个产品。

$collection->getSelect()->distinct($groupId);