Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/tests/scripts/delete_old_tracking.php

95 lines
4.2 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* This script removes old tracking records from the database.
* It uses parameters in order (all mandatory but the last one).
* Delete the exit; statement at line 13.
* This script should be located inside the tests/scripts/ folder to work
* @author Yannick Warnier <yannick.warnier@beeznest.com>
*/
exit;
require __DIR__.'/../../main/inc/global.inc.php';
$simulate = false;
// Process script parameters
if (PHP_SAPI !== 'cli') {
die('This script can only be executed from the command line');
}
if (!empty($argv[1]) && $argv[1] == '--from') {
$from = $argv[2];
}
if (!empty($argv[3]) && $argv[3] == '--until') {
$until = $argv[4];
}
if (!empty($argv[5]) && $argv[5] == '-s') {
$simulate = true;
echo "Simulation mode is enabled".PHP_EOL;
}
if (empty($from) or empty($until)) {
echo PHP_EOL."Usage: sudo php ".basename(__FILE__)." [options]".PHP_EOL;
echo "Where [options] can be ".PHP_EOL;
echo " --from yyyy-mm-dd Date from which the content should be removed (e.g. 2017-08-31)".PHP_EOL.PHP_EOL;
echo " --until yyyy-mm-dd Date up to which the content should be removed (e.g. 2020-08-31)".PHP_EOL.PHP_EOL;
echo " -s (optional) Simulate execution - Do not delete anything, just show numbers".PHP_EOL.PHP_EOL;
die('Please make sure --from and --until are defined.');
}
echo "About to delete tracking records from $from to $until".PHP_EOL;
// list of tables with their date field
$fields = [
Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS) => 'access_date',
//Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT) => 'tms',
//track_e_attempt_coeff ?
Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING) => 'insert_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS) => 'login_course_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT) => 'default_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_DOWNLOADS) => 'down_date',
//Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES) => 'exe_date',
//Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTPOTATOES) => 'exe_date',
//Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT) => '#linked to exe_id#',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_ITEM_PROPERTY) => 'lastedit_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS) => 'access_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_LINKS) => 'links_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN) => 'login_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_ONLINE) => 'login_date',
//Database::get_main_table(TABLE_STATISTIC_TRACK_E_OPEN) => 'open_date',
Database::get_main_table(TABLE_STATISTIC_TRACK_E_UPLOADS) => 'upload_date',
//track_stored_values
//track_stored_values_stack
];
echo deleteTracking($from, $until, $fields, $simulate);
/**
* Delete all data from the tracking tables between the given dates and return a log string.
* @param string $from 'yyyy-mm-dd' format date from which to start deleting
* @param string $until 'yyyy-mm-dd' format date until which to delete
* @param array $fields An array with the list of tables and their date field
* @param bool $simulate True if we only want to simulate the deletion and collect data
* @return string
*/
function deleteTracking(string $from, string $until, array $fields, bool $simulate): string
{
$log = '';
$size = 0;
if ($simulate) {
$log .= 'Simulation mode ON'.PHP_EOL;
}
foreach ($fields as $table => $field) {
$sql = "SELECT count(*) as countrows FROM $table WHERE $field > '$from 00:00:00' AND $field < '$until 23:59:59'";
$query = Database::query($sql);
$count = Database::result($query, 0, 'countrows');
$size += $count;
$log .= 'About to delete '.$count.' records from '.$table.'.'.PHP_EOL;
$sql = "DELETE FROM $table WHERE $field > '$from 00:00:00' AND $field < '$until 23:59:59'";
$log .= $sql.PHP_EOL;
if (!$simulate) {
Database::query($sql);
}
}
$log .= 'Found '.$size.' matching records in total.'.PHP_EOL;
return $log;
}