admin/purgecaches.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This script triggers a full purging of system caches,
  19  * this is useful mostly for developers who did not disable the caching.
  20  *
  21  * @package    core
  22  * @copyright  2010 Petr Skoda {@link http://skodak.org}
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 require_once('../config.php');
  27 require_once($CFG->libdir.'/adminlib.php');
  28
  29 $confirm = optional_param('confirm', 0, PARAM_BOOL);
  30 $returnurl = optional_param('returnurl', null, PARAM_LOCALURL);
  31
  32 // If we have got here as a confirmed aciton, do it.
  33 if ($confirm && isloggedin() && confirm_sesskey()) {
  34     require_capability('moodle/site:config', context_system::instance());
  35
  36     // Valid request. Purge, and redirect the user back to where they came from.
  37     purge_all_caches();
  38
  39     if ($returnurl) {
  40         $returnurl = $CFG->wwwroot . $returnurl;
  41     } else {
  42         $returnurl = new moodle_url('/admin/purgecaches.php');
  43     }
  44     redirect($returnurl, get_string('purgecachesfinished', 'admin'));
  45 }
  46
  47 // Otherwise, show a button to actually purge the caches.
  48 admin_externalpage_setup('purgecaches');
  49
  50 $actionurl = new moodle_url('/admin/purgecaches.php', array('sesskey'=>sesskey(), 'confirm'=>1));
  51 if ($returnurl) {
  52     $actionurl->param('returnurl', $returnurl);
  53 }
  54
  55 echo $OUTPUT->header();
  56 echo $OUTPUT->heading(get_string('purgecaches', 'admin'));
  57
  58 echo $OUTPUT->box_start('generalbox', 'notice');
  59 echo html_writer::tag('p', get_string('purgecachesconfirm', 'admin'));
  60 echo $OUTPUT->single_button($actionurl, get_string('purgecaches', 'admin'), 'post');
  61 echo $OUTPUT->box_end();
  62
  63 echo $OUTPUT->footer();