216 lines
11 KiB
PHP
216 lines
11 KiB
PHP
<?php
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/* --------------------------------------------------------------------
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This file is part of Chevereto Free.
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https://chevereto.com/free
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(c) Rodolfo Berrios <rodolfo@chevereto.com>
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For the full copyright and license information, please view the LICENSE
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file that was distributed with this source code.
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--------------------------------------------------------------------- */
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namespace CHV;
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use G;
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use Exception;
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class Stat
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{
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public static function getTotals()
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{
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$totals = DB::queryFetchSingle('SELECT * FROM '.DB::getTable('stats').' WHERE stat_type = "total"');
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unset($totals['stat_id'], $totals['stat_type'], $totals['date_gmt']);
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return DB::formatRow($totals);
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}
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public static function track($args=[])
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{
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if (!in_array($args['action'], ['insert', 'update', 'delete'])) {
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throw new StatException(sprintf('Invalid stat action "%s" in ', $args['action']) . __METHOD__, 100);
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}
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$tables = DB::getTables();
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// Restrict unknown tables
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if (!array_key_exists($args['table'], $tables)) {
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throw new StatException(sprintf('Unknown table "%s" in ' . __METHOD__, $args['table']), 101);
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}
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// Restrict tables by stat action
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switch ($args['action']) {
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case 'insert':
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if (!in_array($args['table'], ['albums', 'images', 'likes', 'users'])) {
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throw new StatException(sprintf('Table "%s" does not bind an stat procedure in ' . __METHOD__, $args['table']), 101);
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}
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break;
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}
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// Check missing values
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if ($args['table'] == 'images' and in_array($args['action'], ['insert', 'delete'])) {
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if (!isset($args['disk_sum'])) {
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$disk_sum_value = 0;
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} else {
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if (preg_match('/^([\+\-]{1})?\s*([\d]+)$/', $args['disk_sum'], $matches)) {
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$disk_sum_value = $matches[2];
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} else {
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throw new StatException(sprintf('Invalid disk_sum value "%s" in ' . __METHOD__, $args['disk_sum']), 104);
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}
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}
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}
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// Fix values
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if (!isset($args['value'])) {
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$value = 1;
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} else {
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if (preg_match('/^([\+\-]{1})?\s*([\d]+)$/', $args['value'], $matches)) {
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$value = $matches[2];
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} else {
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throw new StatException(sprintf('Invalid value "%s" in ' . __METHOD__, $args['value']), 102);
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}
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}
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if (!isset($args['date_gmt'])) {
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switch ($args['action']) {
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case 'insert':
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case 'update':
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$args['date_gmt'] = G\datetimegmt();
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break;
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case 'delete':
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throw new StatException('Missing date_gmt value in ' . __METHOD__, 105);
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break;
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}
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} else {
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try {
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$date = new \DateTime($args['date_gmt']);
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$args['date_gmt'] = $date->format('Y-m-d');
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} catch (Exception $e) {
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//throw new StatException($e);
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throw new StatException('Invalid date_gmt value in ' . __METHOD__, 106);
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}
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}
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// Get to the choppa
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switch ($args['action']) {
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case 'insert':
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switch ($args['table']) {
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case 'images':
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if (!isset($args['disk_sum'])) {
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throw new StatException('Missing disk_sum value in ' . __METHOD__, 103);
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}
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$sql_tpl =
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'UPDATE `%table_stats` SET stat_images = stat_images + %value, stat_disk_used = stat_disk_used + %disk_sum WHERE stat_type = "total";' . "\n" .
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'INSERT INTO `%table_stats` (stat_type, stat_date_gmt, stat_images, stat_disk_used) VALUES ("date",DATE("%date_gmt"),"%value", "%disk_sum") ON DUPLICATE KEY UPDATE stat_images = stat_images + %value, stat_disk_used = stat_disk_used + %disk_sum;';
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break;
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default: // albums, likes, users
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$sql_tpl =
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'UPDATE `%table_stats` SET stat_%related_table = stat_%related_table + %value WHERE stat_type = "total";' . "\n" .
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'INSERT `%table_stats` (stat_type, stat_date_gmt, stat_%related_table) VALUES ("date",DATE("%date_gmt"),"%value") ON DUPLICATE KEY UPDATE stat_%related_table = stat_%related_table + %value;';
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break;
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}
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break;
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case 'update':
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switch ($args['table']) {
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case 'images':
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case 'albums':
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// Track image | album | user views
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$sql_tpl =
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'UPDATE `%table_stats` SET stat_%aux_views = stat_%aux_views + %value WHERE stat_type = "total";' . "\n" .
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'INSERT INTO `%table_stats` (stat_type, stat_date_gmt, stat_%aux_views) VALUES ("date",DATE("%date_gmt"),"%value") ON DUPLICATE KEY UPDATE stat_%aux_views = stat_%aux_views + %value;';
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if (isset($args['user_id'])) {
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$sql_tpl .= "\n" . 'UPDATE `%table_users` SET user_content_views = user_content_views + %value WHERE user_id = %user_id;';
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}
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$sql_tpl = strtr($sql_tpl, ['%aux' => DB::getFieldPrefix($args['table'])]);
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break;
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}
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break;
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case 'delete':
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switch ($args['table']) {
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case 'images':
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$sql_tpl =
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'UPDATE `%table_stats` SET stat_images = GREATEST(stat_images - %value, 0) WHERE stat_type = "total";' . "\n" .
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'UPDATE `%table_stats` SET stat_images = GREATEST(stat_images - %value, 0) WHERE stat_type = "date" AND stat_date_gmt = DATE("%date_gmt");' . "\n" .
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'UPDATE `%table_stats` SET stat_image_likes = GREATEST(stat_image_likes - %likes, 0) WHERE stat_type = "total";' . "\n" .
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'UPDATE `%table_stats` SET stat_image_likes = GREATEST(stat_image_likes - %likes, 0) WHERE stat_type = "date" AND stat_date_gmt = DATE("%date_gmt");' . "\n" .
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'UPDATE `%table_stats` SET stat_disk_used = GREATEST(stat_disk_used - %disk_sum, 0) WHERE stat_type = "total";' . "\n" .
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'UPDATE `%table_stats` SET stat_disk_used = GREATEST(stat_disk_used - %disk_sum, 0) WHERE stat_type = "date" AND stat_date_gmt = DATE("%date_gmt");';
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break;
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default: // albums, likes, users
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$sql_tpl =
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'UPDATE `%table_stats` SET stat_%related_table = GREATEST(stat_%related_table - %value, 0) WHERE stat_type = "total";' . "\n" .
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'UPDATE `%table_stats` SET stat_%related_table = GREATEST(stat_%related_table - %value, 0) WHERE stat_type = "date" AND stat_date_gmt = DATE("%date_gmt");';
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if ($args['table'] == 'users') {
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$sql_tpl .=
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// Update likes stats related to this deleted user
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'UPDATE IGNORE `%table_stats` AS S
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INNER JOIN (
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SELECT DATE(like_date_gmt) AS like_date_gmt, COUNT(*) AS cnt
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FROM `%table_likes`
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WHERE like_user_id = %user_id
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GROUP BY DATE(like_date_gmt)
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) AS L ON S.stat_date_gmt = L.like_date_gmt
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SET S.stat_image_likes = GREATEST(S.stat_image_likes - COALESCE(L.cnt, "0"), 0) WHERE stat_type = "date";
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UPDATE IGNORE `%table_stats` SET stat_image_likes = GREATEST(stat_image_likes - COALESCE((SELECT COUNT(*) FROM `%table_likes` WHERE like_user_id = %user_id), "0"), 0) WHERE stat_type = "total";' . "\n" .
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// Update album stats related to this deleted user
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'UPDATE IGNORE `%table_stats` AS S
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INNER JOIN (
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SELECT DATE(album_date_gmt) AS album_date_gmt, COUNT(*) AS cnt
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FROM `%table_albums`
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WHERE album_user_id = %user_id
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GROUP BY DATE(album_date_gmt)
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) AS A ON S.stat_date_gmt = A.album_date_gmt
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SET S.stat_albums = GREATEST(S.stat_albums - COALESCE(A.cnt, "0"), 0) WHERE stat_type = "date";
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UPDATE IGNORE `%table_stats` SET stat_albums = GREATEST(stat_albums - COALESCE((SELECT COUNT(*) FROM `%table_albums` WHERE album_user_id = %user_id), "0"), 0) WHERE stat_type = "total";';
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}
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break;
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}
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break;
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}
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$sql = strtr($sql_tpl, [
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'%table_stats' => $tables['stats'],
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'%table_users' => $tables['users'],
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'%table_likes' => $tables['likes'],
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'%table_albums' => $tables['albums'],
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'%related_table' => (isset($args['content_type']) ? ($args['content_type'] . '_') : null) . $args['table'],
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'%value' => $value,
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'%date_gmt' => $args['date_gmt'],
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'%user_id' => $args['user_id'],
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'%disk_sum' => $disk_sum_value,
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'%likes' => $args['likes'],
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]);
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try {
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DB::queryExec($sql);
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} catch (Exception $e) {
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throw new StatException($e->getMessage(), 400);
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}
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}
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public static function rebuildTotals()
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{
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$query = 'TRUNCATE TABLE `%table_prefix%stats`;
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INSERT INTO `%table_prefix%stats` (stat_id, stat_date_gmt, stat_type) VALUES ("1", NULL, "total") ON DUPLICATE KEY UPDATE stat_type=stat_type;
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UPDATE `%table_prefix%stats` SET
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stat_images = (SELECT IFNULL(COUNT(*),0) FROM `%table_prefix%images`),
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stat_albums = (SELECT IFNULL(COUNT(*),0) FROM `%table_prefix%albums`),
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stat_users = (SELECT IFNULL(COUNT(*),0) FROM `%table_prefix%users`),
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stat_image_views = (SELECT IFNULL(SUM(image_views),0) FROM `%table_prefix%images`),
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stat_disk_used = (SELECT IFNULL(SUM(image_size) + SUM(image_thumb_size) + SUM(image_medium_size),0) FROM `%table_prefix%images`)
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WHERE stat_type = "total";';
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$sql = strtr($query, [
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'%table_prefix%' => G\get_app_setting('db_table_prefix'),
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]);
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$db = DB::getInstance();
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$db->query($sql);
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$db->exec();
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}
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}
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class StatException extends Exception
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{
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}
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