Topic Tag: Custom search

Problem:
Redirect to the post if only one post is found with the parametric search, I'm using this code to do it within wordpress search (and is working fine)

add_action('template_redirect', 'redirect_single_post');
function redirect_single_post() {
    if (is_search()) {
        global $wp_query;
        if ($wp_query->post_count == 1) {
            wp_redirect( get_permalink( $wp_query->posts['0']->ID ) );
        }
    }
}

Solution:
I assume you are using Views shortcode [wpv-views ...] to render the search result, the wordpress shortcode output the content, the result page HTML header has already been outputted, so it is not possible to do it with action or filter hooks, I suggest you try this:
1) Check if there is only one item in the views result:
https://toolset.com/documentation/views-shortcodes/#wpv-conditional
https://toolset.com/documentation/views-shortcodes/#wpv-found-count

2) Then output javascript to redirect the page, for example:
http://stackoverflow.com/questions/503093/how-can-i-make-a-page-redirect-using-jquery
Relevant Documentation: