hooks - Read For Learn

Am I using the right hook for removing quicktags on the admin TinyMCE?

After checking out the code, the best way to do this would be to use the wp_editor_settings filter in /wp-includes/class-wp-editor.php. When you call wp_editor() it internally makes a call to _WP_Editors::editor($content, $editor_id, $settings);. This function first passes the $settings array through parse_settings() which uses that filter. add_filter( ‘wp_editor_settings’, ‘remove_editor_quicktags’, 10, 2 ); function remove_editor_quicktags( $settings, … Read more

Better post meta efficiency?

If you need to search by your meta_key/meta_value then do not store them in a single key. If you store as a single key then you are going to have to store your data as serialized string, or something similar. The only way you can search that would be via an inefficient %LIKE% query which … Read more

Is there a hook that fires before an ajax call?

If you look into this file wp-admin/admin-ajax.php where the wp_ajax_ actions are called, you will find that the admin_init action is being called before it. Here is how to return a different json object based on if the user is admin or not: add_action( ‘wp_ajax_testing’, ‘my_ajax’ ); add_action( ‘admin_init’, ‘my_ajax_checker’, 10, 2); function my_ajax_checker() { … Read more

Get password when user registers and save it sha1 into database

Have a look at Pluggable Functions in /wp-includes/pluggable.php. You can safely replace the password generating/checking functions with your own.

How to inject content after

Just add a custom hook to your template: <body> <?php do_action( ‘wpse73370_custom_hook’ ); ?>

wp_ajax_[service] returning 0

According to the WordPress documentation, you should call die() at the end of your PHP function to return proper results.

Check before publishing, if already exist post with current custom field value

Checking if meta values exist You can use get_posts() (or the WP_Query object) to query all posts which match the post meta you want to save. You will need to specify the post status (i.e. which statuses are you willing to ignore). Below is the untested code to this. (For completeness I’ve left in arguments … Read more

How to use filter hook ‘post_updated_messages’ in coherence with action hook ‘save_post’

Updated: First, you will need to return a bool value on your notifications method so we can reliably set a marker for the message method. Then, you will need to set a $_POST array element to pass on to the redirection filter. public function save_post($post_id){ //Add a $_POST key if you syndicated successfully if($this->send_group_notifications()) //return … Read more

How can I do customizations on login, registration and password recovery forms?

For an general overview about hooks take a look at the codex page about the Plugin API: This article is specifically about the API of “Hooks”, also known as “Filters” and “Actions” Besides that there is valuable information specifically about customizing the login and registration form available at the codex: Customizing the Login Form You … Read more

Increment Page Order As Pages Are Created

The following is a possible solution, but needs some testing to confirm it is viable. It runs only if menu_order == 0 and if it’s not an auto-draft or revision being saved add_action( ‘save_post’, ‘incremental_save_wpse_113767’, 10, 2 ); function incremental_save_wpse_113767( $post_id, $post_object ) { if( defined( ‘DOING_AUTOSAVE’ ) && DOING_AUTOSAVE ) return; if( defined( ‘DOING_AJAX’ … Read more

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