By default, WP_Query returns the standard WP_Post objects for the posts being queried. I believe with some clever rewrite and use of the filters given in WP_Query you can add objects to the returned WP_Post objects array. Will this be performant? In my opinion, it will hurt performance more as you will need to join … Read more
Try ‘post__in’ => array(0) Simple and to the point. Update: ‘post__in’ => empty( $include ) ? [ 0 ] : $include,
You would want to use the NOT EXISTS operator along with passing the taxonomy slug, which tells the query not to include any of a chosen category from your custom taxonomy inside the loop. To exclude all posts that are in the taxonomy “fruit” (regardless of fruit kind), here is the snippet: $args = array( … Read more
The tax_query parameter is an array of arrays, not just an array. This: ‘tax_query’ => array( ‘taxonomy’ => ‘video_type’, ‘terms’ => ‘episode’, ‘field’ => ‘slug’, ‘include_children’ => true, ‘operator’ => ‘IN’ ), Should instead be this: ‘tax_query’ => array( array( ‘taxonomy’ => ‘video_type’, ‘terms’ => ‘episode’, ‘field’ => ‘slug’, ‘include_children’ => true, ‘operator’ => ‘IN’ … Read more
Hi @janoChen: Simple answer: no. What follows is what the PHP code for the function wp_reset_query() from /wp-includes/query.php in WordPRess v3.0.4 as well as the functions subsequently called. You can see that it’s primarily about in modifying global variables. When you use new WP_Query($args) you will be assigning the return value from values to a … Read more
Thank you everyone for your help! In the end the query below got me the results I desired – which was to show and sort the posts by a custom field of “publication_date” first – sorting by the date, and if there were multiple of the same date (say, 4 marked June 2013), it would … Read more
The question was for WordPress 3.0, but just in case someone has the same question for a more recent version, from WordPress Codex: “Starting with version 4.1, meta_query clauses can be nested in order to construct complex queries.” https://developer.wordpress.org/reference/classes/wp_query/#custom-field-post-meta-parameters So, that query should work on the current WordPress version.
It’s saved in an option: $default_posts_per_page = get_option( ‘posts_per_page’ ); Reference: get_option Parameters You can see the keys and values of all available options by manually entering the admin url: /wp-admin/options.php Edit Total number of posts: global $wp_query; $total_posts = $wp_query->post_count;
pre_get_posts will run the same query, so both will take same time. But, If you utilize pre_get_posts action you will save one or more SQL queries. Right now, WordPress is running default query and then you run your query with this function which replace the results of the default query (resulting, default query is of … Read more
Sessions aren’t enabled in wordpress by default, if you want to activate php sessions add this at the beginning of your functions.php: if (!session_id()) { session_start(); } You now can use $_SESSION[‘your-var’] = ‘your-value’; to set a session variable. Take a look at the PHP documentation on sessions. Update: There was a second answer, which, … Read more