cache/usage.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  * Show current cache usage (number of items, size of caches).
  19  *
  20  * @package core_cache
  21  * @copyright 2021 The Open University
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26
  27 require_once($CFG->dirroot . '/lib/adminlib.php');
  28
  29 admin_externalpage_setup('cacheusage');
  30 $adminhelper = cache_factory::instance()->get_administration_display_helper();
  31 raise_memory_limit(MEMORY_EXTRA);
  32
  33 $samples = optional_param('samples', 50, PARAM_INT);
  34
  35 // Just for safety reasons, stop people choosing a stupid number.
  36 if ($samples > 1000) {
  37     $samples = 1000;
  38 }
  39
  40 // Get the actual data.
  41 $usage = $adminhelper->get_usage($samples);
  42
  43 // Set up the renderer and organise data to render.
  44 $renderer = $PAGE->get_renderer('core_cache');
  45 [$table, $summarytable] = $renderer->usage_tables($usage);
  46 $form = new \core_cache\output\usage_samples_form();
  47
  48 echo $OUTPUT->header();
  49 echo $renderer->usage_page($table, $summarytable, $form);
  50 echo $OUTPUT->footer();