Save/update post_meta with Gutenberg from the panel
I found out this bug https://github.com/WordPress/gutenberg/issues/4989 If an attribute get data from meta, and then post is saved/updated, it always return as undefined
post-meta
how to build (custom) stats for post views, per month
I think I’d build that upon and already existing plugin that does the counting for me. I have made quite good experience with Post Views Counter as it also lets you use it in WP_Query. But WP-PostViews looks promising as well. Choose one. Next I’d query posts by view count from a WordPress cron event … Read more
Change description on specific WooCommerce product status change
To avoid an infinite loop on transition_post_status hook when using wp_update_post(), try: add_action(‘transition_post_status’, ‘new_product_add’, 10, 3); function new_product_add($new_status, $old_status, $post) { if( $old_status != ‘publish’ && $new_status == ‘pending’ && !empty($post->ID) && $post->post_type === ‘product’ ) { $term = get_term_by(‘name’, ‘فروش پیج اینستاگرام’, ‘product_cat’); wp_set_object_terms($post->ID, $term->term_id, ‘product_cat’, true); // unhook this function so it doesn’t … Read more
Custom Meta Box not Saving in Posts with Gutenberg Editor
So, it simply turns out that the method I usually use to save post meta doesn’t work in this context, even though it does in when using the classic editor. I don’t know why this is, but I did find another article (https://www.codeinwp.com/blog/make-plugin-compatible-with-gutenberg-sidebar-api/) and there was a line in there that eventually led me to … Read more
using multiple meta_key and meta_value in query_posts
This is not currently possible with query arguments alone (realm of filtering raw SQL query and such). If your task is not time-critical then I suggest to wait for upcoming WP 3.1 release. It will feature much more flexible querying capabilities for custom fields. See Advanced Metadata Queries for post on upcoming improvements.
Filtering multiple meta_values
‘meta_query’ is what you’re looking for: http://scribu.net/wordpress/advanced-metadata-queries.html
WordPress Orderby Numeric Value Not Working
The plugin ‘Post Types Order‘ was the culprit. As Scribu pointed out above the plugin is filtering the Raw SQL query which it shouldn’t be doing. As a result, the argument ‘suppress_filters‘ wasn’t stopping the query being modified and the ‘orderby‘ argument was being completely ignored. As to how this behavior can be stopped, I’m … Read more
How to use post_id with a Class?
You can use update_post_meta() to save an array of values. It will be automatically serialized and unserialized. update_post_meta($post_id, ‘math’, array($a, $b, $c));
conditional function to change post-meta background image
Have you checked the classes on your <body> element? It depends on the theme but WordPress has a function body_class() that dynamically adds a bunch of useful classes in there. It may look like this: <body class=”archive category category-news category-2 two-column content-sidebar”> As you can see it is a powerful helper as you can easily … Read more
Is there a need for nonce with Post Metabox?
Yes, the save action has a nonce already. But you don’t know it – so you cannot validate it. Besides that, you may want to fill a meta box from other places like a user profile or the dashboard, and then you need your own nonce anyway. An example from my current work: There is … Read more