post-meta

Clean up output added via wp_head()

You can remove some of the header stuff with the following. // remove unncessary header info function remove_header_info() { remove_action(‘wp_head’, ‘rsd_link’); remove_action(‘wp_head’, ‘wlwmanifest_link’); remove_action(‘wp_head’, ‘wp_generator’); remove_action(‘wp_head’, ‘start_post_rel_link’); remove_action(‘wp_head’, ‘index_rel_link’); remove_action(‘wp_head’, ‘adjacent_posts_rel_link’); } add_action(‘init’, ‘remove_header_info’); The default installation does not include stuff like meta keywords, so that is either a theme or plugin that you are … Read more

How do I save each option in a multiple select menu as it’s own meta_key + meta_value pair?

Try this inside save_post but please note the code is not tested $old = get_post_meta($post_id, ‘products’); $new = isset ( $_POST[‘products’] ) ? $_POST[‘products’] : array(); if ( empty ($new) ) { // no products selected: completely delete alla meta values for the post delete_post_meta($post_id, ‘products’); } else { $already = array(); if ( ! … Read more

Setting post meta data to random value during post status transition / on publish

Slight change in your code, function wpse_custom_field_on_publish( $new, $old, $post ) { // Only run on “from X > to publish”-transitions if ( $new === ‘publish’ && $old !== ‘publish’) { $page_views = get_post_meta( $post->ID, ‘post_views_count’, true ); // Only set ‘post_views_count’ post meta value if there is none so far if ( empty( $page_views … Read more

update_post_meta() not working in save_post

You aren’t retrieving the saved data and populating the form. function swpd_render_info_fields() { ?> <label for=”swpd_comany_addr”>Company Address</label> <input type=”text” name=”swpd_company_addr” id=”swpd_company_addr” /> <?php } There is nothing in that function that would insert your saved data. You just write a blank form every time. You need to be conditionally populating the input value. function swpd_render_info_fields($post) … Read more

Documentation for post meta

There is no official documented list of all possible post meta keys in core. The closest I could for anything unofficial was this answer on Stack Exchange: You probably don’t want to use the following post meta keys: _thumbnail_id – Used to store the featured image ID _edit_last – Used by the Heartbeat API _edit_lock … Read more

Is it possible to sort the post based on a custom field?

Yes, You can call action “pre_get_posts”. add_action(‘pre_get_posts’,’search_filter’); You can add parameter : $args = array( ‘post_status’ => ‘publish’, ‘posts_per_page’ => 6, ‘paged’ => $paged, ‘meta_key’ => ‘event_date’, ‘orderby’ => ‘meta_value_num’, ‘order’ => ‘ASC’ ); You can use above parameter e.g. : function search_filter($query){ if ( !is_admin() && $query->is_main_query() ) { $query->set(‘post_status’, ‘publish’); $query->set(‘meta_key’, ‘event_date’); $query->set(‘orderby’, … Read more

How to get meta value in wp_attachment_metadata

There are two methods: get_post_meta() $attachment_meta = get_post_meta( $post->ID, ‘_wp_attachment_meta’, true ); Will return an array(): $width = $attachment_meta[‘width’]; That true as the third parameter is especially important in this case, since the metadata being queried is a serialized array. You need to return it as single, or you’re going to get an array returned, … Read more

+ More