hooks - Read For Learn

Modify available templates (in dropdown)

The list of available templates is generated by get_page_templates. By the end of this function you see a filter that allows you to modify the output. You can use that to change it under certain conditions like this: add_filter (‘theme_page_templates’,’wpse302574_conditional_templates’, 10, 4); function wpse302574_conditional_templates ($post_templates, $this, $post, $post_type) { $parent_id = wp_get_post_parent_id ($post->ID); if (get_page_template_slug … Read more

dynamic add_action according to child pages (for homepage control)

The use of add_action() seems backwards to me. A better approach would be to hook homepage_content() into the homepage hook and then just output each section within the one hook: function homepage_content() { $the_id = 5; $item = get_post( $the_id ); $page_tree_array = get_pages( array( ‘child_of’ => $the_id ) ); foreach( $page_tree_array as $item ) … Read more

Automatically set post_parent value

You can do that easily using save_post hook like so: function set_post_parent_on_save($post_id) { // If this is just a revision, don’t do anything if ( wp_is_post_revision( $post_id ) ) return; // Check if it is a post if ( ‘post’ == get_post_type( $post_id ) ) { // unhook this function so it doesn’t loop infinitely … Read more

How to change a WordPress term’s slug before saving

You add the following snippet to your theme’s functions.php file; The “wp_insert_term_data” filter allows you to modify a term’s name, slug or term_group before it is added to the database. This works for terms added via WP All Import and also manually through admin as well. The filter passes all taxonomy terms, not just woocommerce … Read more

How to run hooks one by one manually?

When there’s an issue such as yours, there is probably 1 function stuck somewhere that delays the loading. You can retrieve a list of all functions attached to a hook this way: global $wp_filter; $actions = $wp_filter[‘init’] ; Now you can remove the functions from the hook one by one, by using remove_action() and see … Read more

How to remove a class function from a plugin by using remove_action()?

[ Nova_Restaurant::init(), ‘sort_menu_item_queries_by_menu_order’ ] You want something of type callable, that matches what was given when add_action. There are only a handful of valid callables: [ ‘my_function_name’ ] aka my_function_name(); [ ‘my_class_name’, ‘my_static_function’ ] aka my_class_name::my_stati_function() [ $object, ‘the_objects_function’ ] aka $object->the_objects_function [ function() {} ] an anonymous function or closure So some translation: remove_action(‘parse_query’,’WM_Nova_Restaurant’, … Read more

Get The Caller (Plugin / Theme / Core) For All actions & Hook in WordPress

As I said in my comment to the question, you can use the PHP internal ReflectionFunction class to get the filename of the callable. The below code should be a good start to help you. It needs more logic for determining the callbacks and most of that should be abstracted out of the Monitor class … Read more

Notify admin when Custom post meta data gets updated or deletet

Actually this is the right way of doing that and proper hook to work with in my opinion. All you need to do is check if the updated meta key is the one you want to detect (that’s why there are 4 arguments passed to the hook!). So let’s say your post meta is called … Read more

WordPress cronjob get scheduled but function does not run

I believe you need to use wp_get_current_user() (see https://codex.wordpress.org/Function_Reference/wp_get_current_user ), which will return the current WP user information as an object. From there, you can get the user name (or other parameters). From that page, this example should get you started: $current_user = wp_get_current_user(); /** * @example Safe usage: $current_user = wp_get_current_user(); * if ( … Read more

How to register a widget when saving a post?

As you can see from the hook order, widget_init is a hook that is quite early in the page execution order. So, by the time save_post is fired widget_init has already passed. If you add an action to a hook that has already passed, nothing will happen.

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