hooks - Read For Learn

How to add a button to custom post type’s posts-page

You can add button via add_meta_box function. function add_your_meta_box(){ add_meta_box(‘your-metabox-id’, ‘Title’, ‘function_of_metabox’, ‘custom_post_type’, ‘side’, ‘high’);} add_action(‘add_meta_boxes’, ‘add_your_meta_box’); function function_of_metabox() {?> <input type=”submit” class=”button button-primary button-large” value=”Add New” id=”add-new”/> <?php } if you add to multiple post type, you should use foreach loop. function add_your_meta_box(){ $types = array(“post”,”page”,”custom_post_type”); foreach($types as $type){ add_meta_box(‘your-metabox-id’, ‘Title’, ‘function_of_metabox’, $type, ‘side’, … Read more

Adding function directly vs using hook in function.php

Imagine 2 people are cooking food, and both are following a recipe, when both reach instruction 5. This instruction tells them what to do with some uncooked meat that may be dangerous to eat uncooked. In Alices‘s cookbook she sees: When the meat is safely cooked, eat the meat In Bobs‘s cookbook he sees: eat … Read more

Filter for “get_post_type_archive_link()”

The filter is post_type_archive_link, defined (WP 4.1.1) on line 1112 of file wp-includes/link-template.php: apply_filters( ‘post_type_archive_link’, $link, $post_type ); And the use: add_filter( ‘post_type_archive_link’, function( $link, $post_type ) { //Do something return $link; }, 10, 2 );

Receiving Stripe Webhooks on a wordpress website

I recently had the same problem and pippins stripe integration plugin seemed to answer it but it had a lot of extra code I did not need so I removed it and made a concise version just for the webhook integration: WPStripeWebhook. README is self explanatory. Basically make changes to includes/stripe_listener.php for your events. Also … Read more

Can we hook a static method of a class to add_action inside that class?

register_activation_hook only runs once i.e. when the plugin is first activated – use the init hook instead to “boot up” your plugin: add_action( ‘init’, ‘LocatorMap::init’ );

Unregister post type from child theme

Try the following in your child theme functions file. add_action( ‘init’, ‘remove_mc_projects’ ); function remove_mc_projects() { remove_action(‘init’, ‘mc_projects’); }

How to save the values of checkbox to the register setting?

The settings framework can’t detect data that is not posted, so either use a call to update_option or (what I sometimes do) use a yes/no radio button rather than a checkbox. With a radio button where the default value is 0 (no) and the alternative is 1 (yes), the user is setting the post value … Read more

Can I hook inside another hook?

When it comes to the oop way of doing things you need more than just the class, you also need to instantiate it as an object at some point if you want the action to fire. class myClass{ function __construct(){ add_action( ‘init’, array( $this, ‘someFun’ ) ); } function someFun(){ include( ‘my-script.php’ ); } } … Read more

get_query_var() not working in pre_get_posts

Did you try this? function sort_query($query) if ($query->is_tax() && $query->is_main_query()){ echo $query->query_vars[‘taxonomy’]; $query->set( ‘orderby’, ‘post_title’ ); $query->set( ‘order’, ‘ASC’ ); //do other stuff } } add_action(‘pre_get_posts’, ‘sort_query’); Happy Coding, Kuchenundkakao

Customizing subject in comment notification e-mails

If I understand you correctly you want to change the subject line of the email. The hook of your code only changes the content of the e-mail. There’s a different hook for the subject: add_filter(‘comment_notification_subject’, ‘wpse_228315_comment_notification_subject’); function wpse_228315_comment_notification_subject($subject, $comment_id){ return “New comment”; }

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