I found this from just a Google search (Source) You have to change met value keys as you want. However, it is highly recommend to take a DB backup before running this code. <?php function delete_useless_post_meta() { global $wpdb; $table = $wpdb->prefix.’postmeta’; $wpdb->delete ($table, array(‘meta_key’ => ‘_edit_last’)); $wpdb->delete ($table, array(‘meta_key’ => ‘_edit_lock’)); $wpdb->delete ($table, array(‘meta_key’ … Read more
Depending on your theme, they may be hard coded into a sidebar or footer file. If this is the case, you will need to get your hands dirty and edit your theme files. But you can usually remove them by adding a widget, as these items often only show up when no widgets have been … Read more
Not tested but you can try this: $args = array( ‘posts_per_page’ => 4, ‘post_type’ => ‘post’, ‘meta_key’ => ‘meta-select’, ‘order’ => ‘ASC’, ‘orderby’ => ‘meta_value_num’, ‘meta_query’ => array( array( ‘key’ => ‘meta-select’, ‘value’ => array( 2, 3, 4, 5 ), ‘compare’ => ‘IN’, ), ), ); Ordering is done by value of meta field meta-select … Read more
If the wp_send_json() function is sending the right data, but for some reason you want to use another function to actually send the JSON data, then you can use wp_json_encode(). This is basically the only thing that wp_send_json() does before sending off the data. add_action( ‘publish_post’, ‘wpse_228607_publish_post’, 10, 2 ); function wpse_228607_publish_post( $post_id, $post ){ … Read more
Edit Invalid Answer The answer below is invalid as get_the_id() and get_the_ID() both return the required ID of the post inside the Loop. Thanks to @Jess_Pinkman for pointing it out. Your code should be working fine, but the only issue is you are using an incorrect function to get the ID of the post inside … Read more
you can make repeating fields with the WP alchemy class http://www.farinspace.com/wpalchemy-metabox/#have_fields_and_multi
Probably your already solved this (hopefully not by hand). This part of your question is intriguing: I found that if I open a post through WordPress front-end and then click “update” the custom field data and the post content “sync” Do you mean back-end, right? If so, I think a bulk update would solve this … Read more
As others figured already out: If you have third party plugins with custom queries, you’ll have a bad day! One solution might be caching your results. Template (e.g.: page.php) while (have_posts()): the_post(); global $my_cached_data; $post_id = get_the_ID(); /* * If you have single meta keys, this array_map function * makes them easy to access; otherwise … Read more
The meta value is read when the block loads and assigned to the block attribute. Changes to the block will update the attribute and when the post saves the value will save to the meta. So, as far as I understood, there is no need to actually save anything in the registerBlockType js function. The … Read more
So based on our discussion, the meta named opposition (for match posts) has its value set to the slug of the corresponding club post; e.g. club-1, club-two, etc., right? If so, then you first get the ID of the club post using a custom query (see in the code below) and then you can access … Read more