110 lines
2.8 KiB
PHP
110 lines
2.8 KiB
PHP
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<?php
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if (!defined('WPO_VERSION')) die('No direct access allowed');
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/**
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* Class WP_Optimization_attachments
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*/
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class WP_Optimization_attachments extends WP_Optimization {
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public $ui_sort_order = 4500;
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public $available_for_auto = false;
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public $auto_default = false;
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/**
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* Display or hide optimization in optimizations list.
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*
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* @return bool
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*/
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public function display_in_optimizations_list() {
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return false;
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}
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/**
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* Do actions after optimize() function.
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*/
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public function after_optimize() {
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$message = sprintf(_n('%s orphaned attachment deleted', '%s orphaned attachments deleted', $this->processed_count, 'wp-optimize'), number_format_i18n($this->processed_count));
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if ($this->is_multisite_mode()) {
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$message .= ' '.sprintf(_n('across %s site', 'across %s sites', count($this->blogs_ids), 'wp-optimize'), count($this->blogs_ids));
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}
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$this->logger->info($message);
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$this->register_output($message);
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}
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/**
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* Do optimization.
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*/
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public function optimize() {
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$sql = "SELECT p.ID FROM `".$this->wpdb->posts."` p LEFT JOIN `".$this->wpdb->posts."` pp ON pp.ID = p.post_parent WHERE p.post_parent > 0 AND p.post_type = 'attachment' AND pp.ID IS NULL;";
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$attachment_ids = $this->wpdb->get_col($sql);
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$count_ids = count($attachment_ids);
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if ($count_ids > 0) {
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foreach ($attachment_ids as $attachment_id) {
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wp_delete_attachment($attachment_id, true);
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}
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}
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$this->processed_count += $count_ids;
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}
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/**
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* Do actions after get_info() function.
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*/
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public function after_get_info() {
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if ($this->found_count) {
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$message = sprintf(_n('%s orphaned attachment found', '%s orphaned attachments found', $this->found_count, 'wp-optimize'), number_format_i18n($this->found_count));
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} else {
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$message = __('No orphaned attachments found', 'wp-optimize');
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}
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if ($this->is_multisite_mode()) {
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$message .= ' '.sprintf(_n('across %s site', 'across %s sites', count($this->blogs_ids), 'wp-optimize'), count($this->blogs_ids));
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}
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$this->register_output($message);
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}
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/**
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* Estimate count of unoptimized items.
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*/
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public function get_info() {
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$sql = "SELECT COUNT(*) FROM `" . $this->wpdb->posts . "` p LEFT JOIN `" . $this->wpdb->posts . "` pp ON pp.ID = p.post_parent WHERE p.post_parent > 0 AND p.post_type = 'attachment' AND pp.ID IS NULL;";
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$postmeta = $this->wpdb->get_var($sql);
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$this->found_count += $postmeta;
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}
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/**
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* Returns settings label
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*
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* @return string|void
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*/
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public function settings_label() {
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return __('Remove orphaned attachments', 'wp-optimize');
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}
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/**
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* Return description
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* N.B. This is not currently used; it was commented out in 1.9.1
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*
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* @return string|void
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*/
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public function get_auto_option_description() {
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return __('Remove orphaned attachments', 'wp-optimize');
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}
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}
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