[Resolved] using “post__in” with the $query_args for “wpv_filter_query” filter hook

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[mohammadD]

hello

i have two post_types: 'course' and 'course-group' which course-groups are the children of courses
in a view of 'course-groups' i want to filter them by the post_title of parent 'course'

i'm doing this by a php code:

add_filter( 'wpv_filter_query', 'wpv_filter_query_callback' );
function wpv_filter_query_callback( $query_args ) {

    $search_filters = false;

    if( $query_args['post_type'][0] == 'course-group' ){

        if( isset($_GET['course-name-for-course-group'])){

            if(!isset($query_args['post__in']))
                $query_args['post__in'] = array();

            $search_filters = true;

            $args = array(
               'post_type' => 'u_course',
               's'  => sanitize_text_field($_GET['course-name-for-course-group']),
                'fields'    => 'ids'
            );

            $posts = get_posts( $args );

            foreach ($posts as $item){
                $course_groups = toolset_get_related_posts(
                    $item, // get posts related to this one
                    'u_course-course-group', // relationship between the posts
                    'parent', // get posts where $writer is the parent in given relationship
                    100, 0, // pagination
                    array( ), // How was his surname, again…?
                    'post_id'
                );

                log_status($item);

                log_status(serialize($course_groups));

                foreach ($course_groups as $value)
                    if(!in_array($value , $query_args['post__in']))
                        array_push($query_args['post__in'] , (int)$value);


            }

        }

    }

    log_status(serialize($query_args));
    return $query_args;


}

the "log_status" function, logs sth in a file "log.txt"
and the screenshot is the result of $query_args before returning it

the ids are correct but the view shows all of the course-groups

[Nigel Supporter Languages: English (English ) Spanish (Español ) Timezone: Europe/London (GMT+01:00)]

Without look too closely at your code, I think the issue is the priority with which you are using the wpv_filter_query filter.

By not specifying a priority you are defaulting to 10.

Officially it needs to be 99 to avoid the possibility of any of your changes to $view_args being overwritten, and in practice I always use 101, e.g. here is my boilerplate:

function tsupp_custom_query( $view_args, $view_settings, $view_id ){

    if ( in_array( $view_id, array( 66, 77 ) ) ) { // Edit for View IDs

        // do stuff
    }
    return $view_args;
}
add_filter( 'wpv_filter_query', 'tssupp_custom_query', 101, 3 );

[mohammadD]

the 99 priority works well! but with any other priority it even doesn't pass $view_id and $view_settings into the callback function...

anyway, my problem solved
Thank you!