So, I have been looking EVERYWHERE. I tried every kind of combination. So far, nothing. I have to query two posts to show on my front page, of post post-type, not in one category but, most importantly, of the standard post-format. I work with wp 3.9.1. This is the syntax I use:
$query = new WP_Query( array( 'post_type' => 'post', 'cat' => '-1', 'posts_per_page' => 2, array( 'taxonomy' => 'post_format', 'field' => 'slug', 'terms' => array( 'post-format-gallery', 'post-format-video' ), 'operator' => 'NOT IN' ) ) );
It just does not work. I get two results, but the video and gallery formats are not processed out. I tried also the use of
tax_query => array (.....) with no result at all.
In the first case the
$query->have_posts returns all posts of all formats. In the second case it returns no content at all.