Magento，按“是/否”属性排序

Question

I have to load a collection of products and sort them for further display.

Originally the collection is sorted by date. That works flawlessly. Now I had to add a new YES/NO attribute to the products. That worked out great as well.

The only thing I wasn't able to figure out is how to sort my collection by this attribute. The collection would have to be sorted by this new attribute as well as by the date.

I thought this would work:

$collection->addAttributeToSelect('name');

$collection->addAttributeToSelect('YesNoAttr');

$collection->addAttributeToSelect('special_to_date');

$collection->addAttributeToSelect('short_description');

$collection->addAttributeToSelect('image');

$collection->addAttributeToSort('YesNoAttr', 'ASC')->addAttributeToSort('special_to_date', 'ASC');

$products = $collection->load();

It doesn't. I also tried to set the order:

$collection->setOrder('YesNoAttr','ASC');

I tried sorting only by the new attribute, but it didn't work either, so I'm pretty sure it has nothing to do with me trying to sort by 2 attributes.

I am trying to solve this now for hours and I'm completely clueless what I'm doing wrong.

Any help would be greatly appreciated.

Answer 1

To add more than one attribute to order you can try to do this:

$collection->getSelect()->order('main_table.YesNoAttr asc')
        ->order('main_table.special_to_date asc');