wp hooks

wp-hooks.php

<?php

/**
 * 
 * The WordPress Hooks
 *
 */
https://kinsta.com/blog/wordpress-hooks/

// loading order
https://carlalexander.ca/wordpress-adventurous-loading/#plugins_loaded



/**
 * 
 * About pluggable functions.
 *
 */
// Override parent theme functions
//  https://webdesign.tutsplus.com/tutorials/a-guide-to-overriding-parent-theme-functions-in-your-child-theme--cms-22623

// To write a pluggable function, you simply enclose it in a conditional tag to check if a function with that name has already been run:
if ( ! function_exists ( 'my_function' ) ) {
  function my_function() {
      // Contents of your function here. 
  }
}

// Then, when you come to write a function in your child theme which you want to override the one in the parent theme, you just give it the same name as the one in the parent theme:
function my_function() {
  // Contents for your function override here. 
}



//--> Remove actions
https://developer.wordpress.org/reference/functions/remove_action/

// Remove actions declared in a class
https://zeropointdevelopment.com/how-to-remove-an-action-hook-or-filter-added-by-a-class-in-wordpress/



// action
add_action( 'admin_menu', 'callback_function' );


https://tommcfarlin.com/remove-wordpress-meta-boxes/
https://developer.wordpress.org/reference/hooks/default_hidden_meta_boxes/

add_action( 'default_hidden_meta_boxes', 'acme_remove_meta_boxes', 10, 2 );
/**
 * Removes the category, author, post excerpt, and slug meta boxes.
 *
 * @since    1.0.0
 *
 * @param    array    $hidden    The array of meta boxes that should be hidden for Acme Post Types
 * @param    object   $screen    The current screen object that's being displayed on the screen
 * @return   array    $hidden    The updated array that removes other meta boxes
 */
function acme_remove_meta_boxes( $hidden, $screen ) {
	if ( 'acme_post_type' == $screen->id ) {
		$hidden = array(
			'acme_post_type_categorydiv',
			'authordiv',
			'postexcerpt',
			'slugdiv'
    		);
		
	}
	return $hidden;
	
}


// Posts Actions
https://wordpress.stackexchange.com/questions/64072/when-is-the-new-status-post-post-type-transition-hook-fired
https://www.wp-plugin-api.com/hook/new_status_post-post_type/?version=wordpress-5.3.2
https://wordpress.org/support/article/post-status/


// examples, send mails then custom posts are changed
add_action('publish_laundries', 'myfunction');
function myfunction(){
  $to = 'a-josanu@office.simpals.com';
  $subject = 'Published laundries post';
  $message = "Your laundries is published at: " . get_permalink($post_id);
  wp_mail($to, $subject, $message );
//  echo 'Posts Added';
}

add_action('draft_laundries', 'myfunction');
function myfunction(){
  $to = 'a-josanu@office.simpals.com';
  $subject = 'Published laundries post';
  $message = "Your laundries is published at: " . get_permalink($post_id);
  wp_mail($to, $subject, $message );
//  echo 'Posts Added';
}




************ Filters ************
// Filter content, add rel="lightbox" to link, add tag properties. 
add_filter('the_content', 'my_addlightboxrel');
function my_addlightboxrel($content) {
  global $post;
  $pattern ="/<a(.*?)href=('|\")(.*?).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>/i";
  $replacement = '<a$1href=$2$3.$4$5 rel="lightbox" title="'.$post->post_title.'"$6>';
  $content = preg_replace($pattern, $replacement, $content);
  return $content;
}



/**
 * Filter Primary Navigation to add navigation search.
 *
 * @param string $markup the markup for the navigation addons.
 *
 * @access public
 * @return mixed
 */
add_filter( 'wp_nav_menu_args', 'modify_primary_menu');
function modify_primary_menu( $markup ) {
    if ( 'primary' !== $markup['theme_location'] ) {
        return $markup;
    }
    $markup['items_wrap'] = display_filtered_navigation();

    return $markup;
}

// Display navigation.
function display_filtered_navigation() {
    $nav  = '<ul id="%1$s" class="%2$s">';
    $nav .= '%3$s';
    $nav .= apply_filters( 'hestia_after_primary_navigation_addons', search_in_menu() );
    $nav .= '</ul>';

    return $nav;
}

// Display search form in menu.
function search_in_menu() {

    add_filter( 'get_search_form', 'filter_search_form' );
    $form = get_search_form( false );
    remove_filter( 'get_search_form','filter_search_form' );

    return $form;
}

// Filter the search form to adapt to our needs.
function filter_search_form( $form ) {
    $output  = '';
    $output .= '<li class="hestia-search-in-menu">';
    $output .= '<div class="hestia-nav-search">';
    $output .= $form;
    $output .= '</div>';
    $output .= '<a class="hestia-toggle-search"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="16" height="16"><path d="M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z"></path></svg></a>';
    $output .= '</li>';

    return $output;
}