In the previous post, Extending or Modifying a Plugin, in this two part series, I wrote about modifying by extending an existing plugin using a plugin. This left us with the following question:
How do I deactivate my plugin if the extended plugin was deactivated?
This snippet will allow you to deactivate your extended plugin when the extended plugin deactivates.
| <?php | |
| add_action( 'update_option_active_sitewide_plugins', 'dpse_deactivate_self', 10, 2 ); | |
| add_action( 'update_option_active_plugins', 'dpse_deactivate_self', 10, 2 ); | |
| /** | |
| * Deactivate ourself if Addthis is deactivated. | |
| */ | |
| function dpse_deactivate_self( $plugin, $network_deactivating ) { | |
| if ( !is_plugin_active( 'addthis/addthis_social_widget.php' ) ) { | |
| deactivate_plugins( plugin_basename( __FILE__ ), true ); | |
| } | |
| } |
Picking up from the previous post, in the example below, there is a code snippet to customize Display Posts Shortcode. So, if the client decides to deactivate Display Posts Shortcode, then this plugin will deactivate itself automagically.
Yes, it is strange that I am hooking into the updated_option hook. One would think that this could be done with the deactivated_plugin hook, but it cannot since at the time of this post either the documentation (ticket #27189) is wrong or the action occurs at the wrong place (ticket #27189, see also #20241).
Full Extended Plugin
| <?php | |
| /** | |
| * Display Posts Shortcode Extension Plugin | |
| * | |
| * @package DT_Display_Posts | |
| * @author Travis Smith <t@wpsmith.net> | |
| * @license GPL-2.0+ | |
| * @link http://wpsmith.net | |
| * @link http://wordpress.org/plugins/display-posts-shortcode/ | |
| * @copyright 2014 Travis Smith | |
| * | |
| * @wordpress-plugin | |
| * Plugin Name: Display Posts Shortcode - My Extension | |
| * Plugin URI: http://www.wpsmith.net | |
| * Description: Extends Display Posts Shortcode | |
| * Version: 1.0.0 | |
| * Author: Travis Smith | |
| * Author URI: http://www.wpsmith.net | |
| * Text Domain: displayposts-ext | |
| * License: GPL-2.0+ | |
| * License URI: http://www.gnu.org/licenses/gpl-2.0.txt | |
| * Domain Path: /languages | |
| */ | |
| add_filter( 'display_posts_shortcode_args', 'dpse_shortcode_exclude_posts', 10, 2 ); | |
| /** | |
| * Add "not_in" arg to Display Posts Shortcode | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param array $args Default Display Posts Shortcode args. | |
| * @param array $atts Original shortcode attributes. | |
| * @return array $args Modified Display Posts Shortcode args. | |
| */ | |
| function dpse_shortcode_exclude_posts( $args, $atts ) { | |
| if( isset( $atts['not_in'] ) ) { | |
| $args['post__not_in'] = explode( ',', $atts['not_in'] ); | |
| } | |
| return $args; | |
| } | |
| add_action( 'update_option_active_sitewide_plugins', 'dpse_deactivate_self', 10, 2 ); | |
| add_action( 'update_option_active_plugins', 'dpse_deactivate_self', 10, 2 ); | |
| /** | |
| * Deactivate ourself if Addthis is deactivated. | |
| */ | |
| function dpse_deactivate_self( $plugin, $network_deactivating ) { | |
| if ( !is_plugin_active( 'display-posts-shortcode/display-posts-shortcode.php' ) ) { | |
| deactivate_plugins( plugin_basename( __FILE__ ), true ); | |
| } | |
| } |