‘the_posts’ is an action fired everytime WP_Query get posts, for main query and for other secondary queries, so when you do something like: $foo = new WP_Query($args); in a widget or elsewhere (shortcode, related posts…) ‘the_posts’ is triggered again. However there is only one main query, so you can use a conditional and do what … Read more
Correct. Action hooks do not return content, and honestly if you need an action hook to return content there is a pretty good chance that you are doing something wrong. However, if it turns out to be your only option the cleanest way to do it is with a static variable: function action_value_grab() { static … Read more
Thanks Stephen for helping me wrap my head around this today. Even though it’s something so small, I absolutely hate when develpers bloat plugins with crap you don’t want. I was very frustrated after WPengine, telling me it can’t be removed and that if I really want to remove it than I need to find … Read more
The basic mistake is, that every data is available at the point where you write your code. That isn’t the case and hooks are there to provide access to the core code during different states of the core loading procedure graph. In short and very simplified things run like this: # core loads // …more … Read more
TLDR; Nested shortcodes cannot have the same name. You must have unique names for shortcodes within shortcodes. I’ve found the answer thanks to @patnz in response to: shortcode inside another shortcode. If you look at the WordPress Codex :: Shortcode API :: Nested Shortcodes you will find the answer with an illustrative example. So in … Read more
You need to use before_delete_post action. As its already very late when delete_post action is run. WordPress un-attach all the attachments before running delete_post action. So when you run get_posts in your delete_attachment function there are no attachments found. So you need to hook your function to before_delete_post. add_action(‘before_delete_post’,’abc_delete_attachment’);
The handle_upload hook is called after wp_handle_upload is run, and it sends in a named array consisting of ‘file’, ‘url’ & ‘type’. You could possibly use code like this to utilise it, depending on what you need to achieve: function process_images($results) { if( $results[‘type’] === ‘image/jpeg’ ) { // or /png or /tif / /whatever … Read more
Your plugin needs to wait for the themes functions.php file to be loaded. Try this: <?php /* Plugin Name: Demo Plugin Version: 1.0 */ add_action( ‘after_setup_theme’, function() { do_action( ‘basic_action_demo’ ); } ); ?> The after_setup_theme hook is run immediately after functions.php is loaded. Update for your comment below. In your plugin create a function … Read more
I believe you are looking for has_action, which should … Check if any action has been registered for a hook. if (has_action(‘custom_action’)) { // stuff } else { // different stuff }
I skimmed through the plugin’s code and you could try to use the define_public_hooks() method of the Plugin_Name class to register your ajax action callbacks of the Plugin_Name_Public class: /** * Register all of the hooks related to the public-facing functionality * of the plugin. * * @since 1.0.0 * @access private */ private function … Read more