I'm using some filters and it's ok, I just have a problem when i use a single checkbox:
I created a custom filed which is a checkbox with value "NEW"; i need it to flag a post with a particular feature and I want the serach form to search the posts flagged with it.
I added a new "meta filed" , I chosed the "new" metakey, selected "IN" as compare operator, selected checkbox and wrote one single option in the "drop down option" (I wrote NEW).
But the filter doesn't work.
Is it correct the process?