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Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 401 and 402] [Versions 401 and 403]

   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   * Defines classes used for plugin info.
  19   *
  20   * @package    core
  21   * @copyright  2011 David Mudrak <david@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  namespace core\plugininfo;
  25  
  26  use moodle_url, part_of_admin_tree, admin_settingpage, core_plugin_manager;
  27  
  28  defined('MOODLE_INTERNAL') || die();
  29  
  30  /**
  31   * Class for course formats
  32   */
  33  class format extends base {
  34      /**
  35       * Finds all enabled plugins, the result may include missing plugins.
  36       * @return array|null of enabled plugins $pluginname=>$pluginname, null means unknown
  37       */
  38      public static function get_enabled_plugins() {
  39          global $DB;
  40  
  41          $plugins = core_plugin_manager::instance()->get_installed_plugins('format');
  42          if (!$plugins) {
  43              return array();
  44          }
  45          $installed = array();
  46          foreach ($plugins as $plugin => $version) {
  47              $installed[] = 'format_'.$plugin;
  48          }
  49  
  50          list($installed, $params) = $DB->get_in_or_equal($installed, SQL_PARAMS_NAMED);
  51          $disabled = $DB->get_records_select('config_plugins', "plugin $installed AND name = 'disabled'", $params, 'plugin ASC');
  52          foreach ($disabled as $conf) {
  53              if (empty($conf->value)) {
  54                  continue;
  55              }
  56              list($type, $name) = explode('_', $conf->plugin, 2);
  57              unset($plugins[$name]);
  58          }
  59  
  60          $enabled = array();
  61          foreach ($plugins as $plugin => $version) {
  62              $enabled[$plugin] = $plugin;
  63          }
  64  
  65          return $enabled;
  66      }
  67  
  68      public static function enable_plugin(string $pluginname, int $enabled): bool {
  69          $haschanged = false;
  70  
  71          $plugin = 'format_' . $pluginname;
  72          $oldvalue = get_config($plugin, 'disabled');
  73          $disabled = !$enabled;
  74          // Only set value if there is no config setting or if the value is different from the previous one.
  75          if ($oldvalue == false && $disabled) {
  76              if (get_config('moodlecourse', 'format') === $pluginname) {
  77                  // The default course format can't be disabled.
  78                  throw new \moodle_exception('cannotdisableformat', 'error');
  79              }
  80              set_config('disabled', $disabled, $plugin);
  81              $haschanged = true;
  82          } else if ($oldvalue != false && !$disabled) {
  83              unset_config('disabled', $plugin);
  84              $haschanged = true;
  85          }
  86  
  87          if ($haschanged) {
  88              add_to_config_log('disabled', $oldvalue, $disabled, $plugin);
  89              \core_plugin_manager::reset_caches();
  90          }
  91  
  92          return $haschanged;
  93      }
  94  
  95      /**
  96       * Gathers and returns the information about all plugins of the given type
  97       *
  98       * @param string $type the name of the plugintype, eg. mod, auth or workshopform
  99       * @param string $typerootdir full path to the location of the plugin dir
 100       * @param string $typeclass the name of the actually called class
 101       * @param core_plugin_manager $pluginman the plugin manager calling this method
 102       * @return array of plugintype classes, indexed by the plugin name
 103       */
 104      public static function get_plugins($type, $typerootdir, $typeclass, $pluginman) {
 105          global $CFG;
 106          require_once($CFG->dirroot.'/course/lib.php');
 107  
 108          $formats = parent::get_plugins($type, $typerootdir, $typeclass, $pluginman);
 109          $order = get_sorted_course_formats();
 110          $sortedformats = array();
 111          foreach ($order as $formatname) {
 112              $sortedformats[$formatname] = $formats[$formatname];
 113          }
 114          return $sortedformats;
 115      }
 116  
 117      public function get_settings_section_name() {
 118          return 'formatsetting' . $this->name;
 119      }
 120  
 121      public function load_settings(part_of_admin_tree $adminroot, $parentnodename, $hassiteconfig) {
 122          global $CFG, $USER, $DB, $OUTPUT, $PAGE; // In case settings.php wants to refer to them.
 123          $ADMIN = $adminroot; // May be used in settings.php.
 124          $plugininfo = $this; // Also can be used inside settings.php.
 125  
 126          if (!$this->is_installed_and_upgraded()) {
 127              return;
 128          }
 129  
 130          if (!$hassiteconfig or !file_exists($this->full_path('settings.php'))) {
 131              return;
 132          }
 133  
 134          $section = $this->get_settings_section_name();
 135  
 136          $settings = new admin_settingpage($section, $this->displayname, 'moodle/site:config', $this->is_enabled() === false);
 137          include($this->full_path('settings.php')); // This may also set $settings to null.
 138  
 139          if ($settings) {
 140              $ADMIN->add($parentnodename, $settings);
 141          }
 142      }
 143  
 144      public function is_uninstall_allowed() {
 145          if ($this->name !== get_config('moodlecourse', 'format') && $this->name !== 'site') {
 146              return true;
 147          } else {
 148              return false;
 149          }
 150      }
 151  
 152      /**
 153       * Return URL used for management of plugins of this type.
 154       * @return moodle_url
 155       */
 156      public static function get_manage_url() {
 157          return new moodle_url('/admin/settings.php', array('section'=>'manageformats'));
 158      }
 159  
 160      public function get_uninstall_extra_warning() {
 161          global $DB;
 162  
 163          $coursecount = $DB->count_records('course', array('format' => $this->name));
 164  
 165          if (!$coursecount) {
 166              return '';
 167          }
 168  
 169          $defaultformat = $this->pluginman->plugin_name('format_'.get_config('moodlecourse', 'format'));
 170          $message = get_string(
 171              'formatuninstallwithcourses', 'core_admin',
 172              (object)array('count' => $coursecount, 'format' => $this->displayname,
 173                  'defaultformat' => $defaultformat));
 174  
 175          return $message;
 176      }
 177  
 178      /**
 179       * Pre-uninstall hook.
 180       *
 181       * This is intended for disabling of plugin, some DB table purging, etc.
 182       *
 183       * NOTE: to be called from uninstall_plugin() only.
 184       * @private
 185       */
 186      public function uninstall_cleanup() {
 187          global $DB;
 188  
 189          if (($defaultformat = get_config('moodlecourse', 'format')) && $defaultformat !== $this->name) {
 190              $courses = $DB->get_records('course', array('format' => $this->name), 'id');
 191              $data = (object)array('id' => null, 'format' => $defaultformat);
 192              foreach ($courses as $record) {
 193                  $data->id = $record->id;
 194                  update_course($data);
 195              }
 196          }
 197  
 198          $DB->delete_records('course_format_options', array('format' => $this->name));
 199  
 200          parent::uninstall_cleanup();
 201      }
 202  }