hooks

Hide gutenberg option blocks

Some of the panels related to the entire post (e.g. the featured image, excerpt) can be removed and https://github.com/WordPress/gutenberg/issues/17281 shows how. e.g. wp.data.dispatch( ‘core/edit-post’).removeEditorPanel( ‘featured-image’ ); wp.data.dispatch( ‘core/edit-post’).removeEditorPanel( ‘post-excerpt’ ); The sidebar is also used for additional block options and there’s currently no cohesive, consistent way to manage whether a block’s options are available to … Read more

How can I remove a hooked action created by a plugin?

This one is tricky. You need to remove a hooked function which is a member of dynamically created class instance and the usual methods like remove_action( ‘hook_name’, ‘hook_function’, priority ) and even remove_action( ‘hook_name’, array( ‘class_name’, ‘member_function’ ), priority ) won’t work. I once had to solve a similar problem. Mine was more complicated, I … Read more

What’s the earliest point I can get the queried object ID?

A more compact and WordPress-ish way, using url_to_postid(): function wpmp_switcher_exclusions_init() { $pid = url_to_postid( home_url( add_query_arg( array() ) ) ); if ( (int) $pid > 0 && get_post_meta( $pid, ‘_wp_page_template’, TRUE ) === ‘my-responsive-template.php’ ) { remove_action(‘init’, ‘wpmp_switcher_init’); remove_action(‘admin_menu’, ‘wpmp_switcher_admin_menu’); remove_action(‘wp_footer’, ‘wpmp_switcher_wp_footer’); remove_filter(‘stylesheet’, ‘wpmp_switcher_stylesheet’); remove_filter(‘template’, ‘wpmp_switcher_template’); remove_filter(‘option_home’, ‘wpmp_switcher_option_home_siteurl’); remove_filter(‘option_siteurl’, ‘wpmp_switcher_option_home_siteurl’); } } add_action( ‘setup_theme’, ‘wpmp_switcher_exclusions_init’ … Read more

What hook is executed just after wp_query has been executed?

Yep you’re right template_redirect is fired right after wp which performs the query. A very useful plugin you might want to look at is: https://wordpress.org/plugins/query-monitor/ This can help you to see what’s loaded on a particular page during development, in addition to what hook is used

Display a different theme for not logged-in users

Try hooking on all these: (But I guess you’d have to do it from a plugin, since doing it from theme functions.php might be too late). E.g.: /* Plugin Name: test Description: switchtest Version: 0.1.0 */ add_filter( ‘template’, ‘yourthing_switch_theme’ ); add_filter( ‘option_template’, ‘yourthing_switch_theme’ ); add_filter( ‘option_stylesheet’, ‘yourthing_switch_theme’ ); add_filter( ‘pre_option_stylesheet’, ‘yourthing_switch_theme’ ); function yourthing_switch_theme( $theme … Read more

Is there a filter/action to add content to WP admin metaboxes?

I couldn’t find a hook so I went with the JS option. add_action( “admin_head-post-new.php”, ‘meta_box_instruction’ ); //new post add_action( “admin_head-post.php”, ‘meta_box_instruction’ ); //edit post function meta_box_instruction($d) { global $post; if($post->post_type == ‘{YOUR POST TYPE}’ || $_GET[‘post_type’] == ‘{YOUR POST TYPE}’): ?> <script type=”text/javascript”> jQuery(document).ready(function(){ jQuery(‘<p>Some instruction</p>’).insertBefore(‘#taxonomy-{YOUR TAXONOMY NAME}’).parent(); }); </script> <?php endif; }

Determining a Widget Instance and Sidebar Location?

The widget_display_callback hook takes 3 arguments as we can see in /wp-includes/widgets.php: (line 180, WP 3.4.2) $instance = apply_filters(‘widget_display_callback’, $instance, $this, $args); So, to make a complete hook, the code is: // Priority = 10 // Arguments = 3 add_filter(‘widget_display_callback’, ‘wpse_57546_widget_display_callback’, 10, 3); // Using “$this” as an argument produces errors, // as it is … Read more

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