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<?php |
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|
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if (!defined('WPO_VERSION')) die('No direct access allowed'); |
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|
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class WP_Optimization_revisions extends WP_Optimization { |
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|
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public $ui_sort_order = 1000; |
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|
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public $available_for_auto = true; |
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|
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public $auto_default = true; |
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|
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public $setting_default = true; |
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|
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public $available_for_saving = true; |
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|
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/** |
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* Prepare data for preview widget. |
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* |
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* @param array $params |
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* |
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* @return array |
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*/ |
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public function preview($params) { |
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|
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$retention_subquery = ''; |
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|
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if ('true' == $this->retention_enabled) { |
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$retention_subquery = ' and post_modified < NOW() - INTERVAL ' . $this->retention_period . ' WEEK'; |
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} |
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|
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// get data requested for preview. |
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$sql = $this->wpdb->prepare( |
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"SELECT `ID`, `post_title`, `post_date`". |
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" FROM `" . $this->wpdb->posts . "`". |
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" WHERE post_type = 'revision'". |
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$retention_subquery. |
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" ORDER BY `ID` LIMIT %d, %d;", |
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array( |
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$params['offset'], |
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$params['limit'], |
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) |
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); |
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|
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$posts = $this->wpdb->get_results($sql, ARRAY_A); |
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|
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// fix empty revision titles. |
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if (!empty($posts)) { |
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foreach ($posts as $key => $post) { |
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$posts[$key]['post_title'] = '' == $post['post_title'] ? '('.__('no title', 'wp-optimize').')' : $post['post_title']; |
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} |
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} |
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|
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// get total count revisions for optimization. |
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$sql = "SELECT COUNT(*) FROM `" . $this->wpdb->posts . "` WHERE post_type = 'revision'".$retention_subquery.";"; |
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|
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$total = $this->wpdb->get_var($sql); |
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|
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return array( |
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'id_key' => 'ID', |
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'columns' => array( |
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'ID' => __('ID', 'wp-optimize'), |
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'post_title' => __('Title', 'wp-optimize'), |
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'post_date' => __('Date', 'wp-optimize'), |
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), |
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'offset' => $params['offset'], |
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'limit' => $params['limit'], |
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'total' => $total, |
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'data' => $this->htmlentities_array($posts, array('ID')), |
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'message' => $total > 0 ? '' : __('No post revisions found', 'wp-optimize'), |
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); |
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} |
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|
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/** |
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* Do actions after optimize() function. |
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*/ |
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public function after_optimize() { |
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$message = sprintf(_n('%s post revision deleted', '%s post revisions deleted', $this->processed_count, 'wp-optimize'), number_format_i18n($this->processed_count)); |
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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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|
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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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/** |
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* Do optimization. |
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*/ |
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public function optimize() { |
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|
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if ('true' == $this->revisions_retention_enabled) { |
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$this->optimize_by_posts(); |
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return; |
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} |
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|
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$clean = "DELETE FROM `" . $this->wpdb->posts . "` WHERE post_type = 'revision'"; |
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|
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if ('true' == $this->retention_enabled) { |
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$clean .= ' |
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AND post_modified < NOW() - INTERVAL ' . $this->retention_period . ' WEEK'; |
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} |
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|
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// if posted ids in params, then remove only selected items. used by preview widget. |
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if (isset($this->data['ids'])) { |
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$clean .= ' AND `ID` in ('.join(',', $this->data['ids']).')'; |
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} |
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|
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$clean .= ';'; |
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|
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$revisions = $this->query($clean); |
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$this->processed_count += $revisions; |
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|
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// clean orphaned post meta. |
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$clean = "DELETE pm FROM `" . $this->wpdb->postmeta . "` pm LEFT JOIN `" . $this->wpdb->posts . "` p ON pm.post_id = p.ID WHERE p.ID IS NULL"; |
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$this->query($clean); |
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} |
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|
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/** |
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* Optimize post revisions but keep `x` revisions for each post |
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*/ |
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private function optimize_by_posts() { |
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// get data requested for preview. |
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$sql = "SELECT `post_parent`, GROUP_CONCAT(`ID`)". |
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" FROM `" . $this->wpdb->posts . "`". |
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" WHERE post_type = 'revision'". |
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" GROUP BY `post_parent`". |
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" ORDER BY `post_parent`"; |
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|
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$results = $this->wpdb->get_results($sql, ARRAY_N); |
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$post_parents = array(); |
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$revisions = ''; |
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foreach ($results as $row) { |
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array_push($post_parents, $row[0]); |
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$tmp = explode(',', $row[1]); |
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rsort($tmp); |
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$tmp = implode(',', array_slice($tmp, $this->revisions_retention_count)); |
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if ('' !== $tmp) { |
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$revisions .= $tmp . ','; |
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} |
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} |
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$revisions = rtrim($revisions, ','); |
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$revisions = empty($revisions) ? array() : explode(',', $revisions); |
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|
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while (count($revisions) > 0) { |
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$delete_this_time = array_splice($revisions, 0, min(count($revisions), 250)); |
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$clean = "DELETE FROM `" . $this->wpdb->posts . "` WHERE `ID` IN (" . implode(',', $delete_this_time) . ")"; |
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$count = $this->query($clean); |
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$this->processed_count += $count; |
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} |
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|
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// clean orphaned post meta. |
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$clean = "DELETE pm FROM `" . $this->wpdb->postmeta . "` pm LEFT JOIN `" . $this->wpdb->posts . "` p ON pm.post_id = p.ID WHERE p.ID IS NULL"; |
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$this->query($clean); |
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} |
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|
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/** |
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* Do actions after get_info() function. |
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*/ |
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public function after_get_info() { |
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if ($this->found_count > 0) { |
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$message = sprintf(_n('%s post revision in your database', '%s post revisions in your database', $this->found_count, 'wp-optimize'), number_format_i18n($this->found_count)); |
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} else { |
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$message = __('No post revisions found', 'wp-optimize'); |
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} |
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|
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if ($this->is_multisite_mode()) { |
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$message .= ' '.sprintf(_n('across %s site', 'across %s sites', count($this->blogs_ids), 'wp-optimize'), count($this->blogs_ids)); |
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} |
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|
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// add preview link to message. |
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if ($this->found_count > 0) { |
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$message = $this->get_preview_link($message); |
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} |
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|
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$this->register_output($message); |
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} |
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|
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public function get_info() { |
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if ('true' == $this->revisions_retention_enabled) { |
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$sql = "SELECT `post_parent`, GROUP_CONCAT(`ID`)". |
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" FROM `" . $this->wpdb->posts . "`". |
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" WHERE post_type = 'revision'". |
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" GROUP BY `post_parent`". |
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" ORDER BY `post_parent`"; |
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|
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$results = $this->wpdb->get_results($sql, ARRAY_N); |
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$post_parents = array(); |
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$revisions = ''; |
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foreach ($results as $row) { |
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array_push($post_parents, $row[0]); |
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$tmp = explode(',', $row[1]); |
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rsort($tmp); |
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$tmp = implode(',', array_slice($tmp, $this->revisions_retention_count)); |
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if (!empty($tmp)) { |
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$revisions .= $tmp . ','; |
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} |
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} |
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$revisions = rtrim($revisions, ','); |
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if (!empty($revisions)) { |
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$revisions = explode(',', $revisions); |
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$this->found_count += count($revisions); |
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} |
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} else { |
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$sql = "SELECT COUNT(*) FROM `" . $this->wpdb->posts . "` WHERE post_type = 'revision'"; |
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|
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if ('true' == $this->retention_enabled) { |
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$sql .= ' and post_modified < NOW() - INTERVAL ' . $this->retention_period . ' WEEK'; |
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} |
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$sql .= ';'; |
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|
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$revisions = $this->wpdb->get_var($sql); |
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|
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$this->found_count += $revisions; |
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} |
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} |
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|
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/** |
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* Returns appropriate label string based on option value |
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* |
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* @return string |
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*/ |
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public function settings_label() { |
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|
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if ('true' == $this->retention_enabled && 'true' == $this->revisions_retention_enabled) { |
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return sprintf(__('Clean post revisions which are older than %d weeks and keep at least %d revisions', 'wp-optimize'), $this->retention_period, $this->revisions_retention_count); |
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} |
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|
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if ('true' == $this->retention_enabled && 'false' == $this->revisions_retention_enabled) { |
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return sprintf(__('Clean post revisions which are older than %d weeks', 'wp-optimize'), $this->retention_period); |
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} |
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|
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if ('false' == $this->retention_enabled && 'true' == $this->revisions_retention_enabled) { |
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return sprintf(__('Clean post revisions but keep at least %d revisions', 'wp-optimize'), $this->revisions_retention_count); |
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} |
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|
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return __('Clean all post revisions', 'wp-optimize'); |
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} |
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|
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public function get_auto_option_description() { |
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return __('Clean all post revisions', 'wp-optimize'); |
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} |
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} |
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|
