User Contributed Notes

1. Skip to note 5 content

   
   Steven Lin
   
   
   6 years ago
   

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   Example migrated from Codex:

   Do stuff if the current plug-in is being updated.

   add_action( 'upgrader_process_complete', 'my_upgrade_function',10, 2);
   
   function my_upgrade_function( $upgrader_object, $options ) {
       $current_plugin_path_name = plugin_basename( __FILE__ );
   
       if ($options['action'] == 'update' && $options['type'] == 'plugin' ) {
          foreach($options['plugins'] as $each_plugin) {
             if ($each_plugin==$current_plugin_path_name) {
                // .......................... YOUR CODES .............
   
             }
          }
       }
   }

2. Skip to note 6 content

   
   Steven Lin
   
   
   6 years ago
   

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   Example migrated from Codex:

   This short plugin demonstrates how to display a notice to the user when they update the plugin. It displays a different notice when they first install the plugin:

   https://catapultthemes.com/wordpress-plugin-update-hook-upgrader_process_complete/</a>
   Description: Just an example of using upgrader_process_complete
   Version: 1.0.0
   Author: Catapult Themes
   Author URI: <a href="https://catapultthemes.com/" rel="nofollow ugc">https://catapultthemes.com/</a>
   Text Domain: wp-upe
   Domain Path: /languages*/
   
   // Exit if accessed directly
   if ( ! defined( 'ABSPATH' ) ) {
    exit;
   }
   
   /**
    * This function runs when WordPress completes its upgrade process
    * It iterates through each plugin updated to see if ours is included
    * @param $upgrader_object Array
    * @param $options Array
    */
   function wp_upe_upgrade_completed( $upgrader_object, $options ) {
    // The path to our plugin's main file
    $our_plugin = plugin_basename( __FILE__ );
    // If an update has taken place and the updated type is plugins and the plugins element exists
    if( $options['action'] == 'update' && $options['type'] == 'plugin' && isset( $options['plugins'] ) ) {
     // Iterate through the plugins being updated and check if ours is there
     foreach( $options['plugins'] as $plugin ) {
      if( $plugin == $our_plugin ) {
       // Set a transient to record that our plugin has just been updated
       set_transient( 'wp_upe_updated', 1 );
      }
     }
    }
   }
   add_action( 'upgrader_process_complete', 'wp_upe_upgrade_completed', 10, 2 );
   
   /**
    * Show a notice to anyone who has just updated this plugin
    * This notice shouldn't display to anyone who has just installed the plugin for the first time
    */
   function wp_upe_display_update_notice() {
    // Check the transient to see if we've just updated the plugin
    if( get_transient( 'wp_upe_updated' ) ) {
     echo '<div class="notice notice-success">' . __( 'Thanks for updating', 'wp-upe' ) . '</div>';
     delete_transient( 'wp_upe_updated' );
    }
   }
   add_action( 'admin_notices', 'wp_upe_display_update_notice' );
   
   /**
    * Show a notice to anyone who has just installed the plugin for the first time
    * This notice shouldn't display to anyone who has just updated this plugin
    */
   function wp_upe_display_install_notice() {
    // Check the transient to see if we've just activated the plugin
    if( get_transient( 'wp_upe_activated' ) ) {
     echo '<div class="notice notice-success">' . __( 'Thanks for installing', 'wp-upe' ) . '</div>';
     // Delete the transient so we don't keep displaying the activation message
    delete_transient( 'wp_upe_activated' );
    }
   }
   add_action( 'admin_notices', 'wp_upe_display_install_notice' );
   
   /**
    * Run this on activation
    * Set a transient so that we know we've just activated the plugin
    */
   function wp_upe_activate() {
    set_transient( 'wp_upe_activated', 1 );
   }
   register_activation_hook( __FILE__, 'wp_upe_activate' );

3. Skip to note 7 content

   
   Steven Lin
   
   
   6 years ago
   

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   Example migrated from Codex:

   The following is example data of the $hook_extra parameter passed to this hook (as of v4.8.1):

   Array
   (
       [action] => update
       [type] => plugin
       [bulk] => 1
       [plugins] => Array
           (
               [0] => wordpress-beta-tester/wp-beta-tester.php
           )
   )

4. Skip to note 8 content

   
   gnowland
   
   
   5 years ago
   

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   In Parameters > $this “Core_Upgrade” should be “Core_Upgrader” and link to https://developer.wordpress.org/reference/classes/core_upgrader/