PHP WC_Admin_Notices::add_custom_notice方法代码示例

 /**
  * Install a plugin from .org in the background via a cron job (used by
  * installer - opt in).
  * @param string $plugin_to_install_id
  * @param array $plugin_to_install
  * @since 2.6.0
  */
 public static function background_installer($plugin_to_install_id, $plugin_to_install)
 {
     if (!empty($plugin_to_install['repo-slug'])) {
         require_once ABSPATH . 'wp-admin/includes/file.php';
         require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
         require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
         require_once ABSPATH . 'wp-admin/includes/plugin.php';
         WP_Filesystem();
         $skin = new Automatic_Upgrader_Skin();
         $upgrader = new WP_Upgrader($skin);
         $installed_plugins = array_map(array(__CLASS__, 'format_plugin_slug'), array_keys(get_plugins()));
         $plugin_slug = $plugin_to_install['repo-slug'];
         $plugin = $plugin_slug . '/' . $plugin_slug . '.php';
         $installed = false;
         $activate = false;
         // See if the plugin is installed already
         if (in_array($plugin_to_install['repo-slug'], $installed_plugins)) {
             $installed = true;
             $activate = !is_plugin_active($plugin);
         }
         // Install this thing!
         if (!$installed) {
             // Suppress feedback
             ob_start();
             try {
                 $plugin_information = plugins_api('plugin_information', array('slug' => $plugin_to_install['repo-slug'], 'fields' => array('short_description' => false, 'sections' => false, 'requires' => false, 'rating' => false, 'ratings' => false, 'downloaded' => false, 'last_updated' => false, 'added' => false, 'tags' => false, 'homepage' => false, 'donate_link' => false, 'author_profile' => false, 'author' => false)));
                 if (is_wp_error($plugin_information)) {
                     throw new Exception($plugin_information->get_error_message());
                 }
                 $package = $plugin_information->download_link;
                 $download = $upgrader->download_package($package);
                 if (is_wp_error($download)) {
                     throw new Exception($download->get_error_message());
                 }
                 $working_dir = $upgrader->unpack_package($download, true);
                 if (is_wp_error($working_dir)) {
                     throw new Exception($working_dir->get_error_message());
                 }
                 $result = $upgrader->install_package(array('source' => $working_dir, 'destination' => WP_PLUGIN_DIR, 'clear_destination' => false, 'abort_if_destination_exists' => false, 'clear_working' => true, 'hook_extra' => array('type' => 'plugin', 'action' => 'install')));
                 if (is_wp_error($result)) {
                     throw new Exception($result->get_error_message());
                 }
                 $activate = true;
             } catch (Exception $e) {
                 WC_Admin_Notices::add_custom_notice($plugin_to_install_id . '_install_error', sprintf(__('%1$s could not be installed (%2$s). <a href="%3$s">Please install it manually by clicking here.</a>', 'woocommerce'), $plugin_to_install['name'], $e->getMessage(), esc_url(admin_url('index.php?wc-install-plugin-redirect=' . $plugin_to_install['repo-slug']))));
             }
             // Discard feedback
             ob_end_clean();
         }
         wp_clean_plugins_cache();
         // Activate this thing
         if ($activate) {
             try {
                 $result = activate_plugin($plugin);
                 if (is_wp_error($result)) {
                     throw new Exception($result->get_error_message());
                 }
             } catch (Exception $e) {
                 WC_Admin_Notices::add_custom_notice($plugin_to_install_id . '_install_error', sprintf(__('%1$s was installed but could not be activated. <a href="%2$s">Please activate it manually by clicking here.</a>', 'woocommerce'), $plugin_to_install['name'], admin_url('plugins.php')));
             }
         }
     }
 }

 public function do_update()
 {
     $html = __("<strong>Update for Dynamic Pricing</strong> Percentage discounts are now calculated using the exact amount you enter.  Previously you could enter in 50 or .5 in the amount box and the result would be 50% discount.\n\nNow if you enter in .5 or 0.5 you will actually be getting a half a percent discount.\n\nPlease review your rules if you have previously entered in amounts such as .5 for a 50% discount.   If you now want to have a 50% discount the amount must read 50, not the previously allowed value of .5", 'wc_dynamic_pricing');
     WC_Admin_Notices::add_custom_notice('wc_dynamic_pricing_pcalc_change', $html);
 }