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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   * Privacy Subsystem implementation for mod_quiz.
  19   *
  20   * @package    mod_quiz
  21   * @category   privacy
  22   * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  namespace mod_quiz\privacy;
  27  
  28  use core_privacy\local\request\approved_contextlist;
  29  use core_privacy\local\request\approved_userlist;
  30  use core_privacy\local\request\contextlist;
  31  use core_privacy\local\request\deletion_criteria;
  32  use core_privacy\local\request\transform;
  33  use core_privacy\local\metadata\collection;
  34  use core_privacy\local\request\userlist;
  35  use core_privacy\local\request\writer;
  36  use core_privacy\manager;
  37  
  38  defined('MOODLE_INTERNAL') || die();
  39  
  40  require_once($CFG->dirroot . '/mod/quiz/lib.php');
  41  require_once($CFG->dirroot . '/mod/quiz/locallib.php');
  42  
  43  /**
  44   * Privacy Subsystem implementation for mod_quiz.
  45   *
  46   * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
  47   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  48   */
  49  class provider implements
  50      // This plugin has data.
  51      \core_privacy\local\metadata\provider,
  52  
  53      // This plugin currently implements the original plugin_provider interface.
  54      \core_privacy\local\request\plugin\provider,
  55  
  56      // This plugin is capable of determining which users have data within it.
  57      \core_privacy\local\request\core_userlist_provider {
  58  
  59      /**
  60       * Get the list of contexts that contain user information for the specified user.
  61       *
  62       * @param   collection  $items  The collection to add metadata to.
  63       * @return  collection  The array of metadata
  64       */
  65      public static function get_metadata(collection $items) : collection {
  66          // The table 'quiz' stores a record for each quiz.
  67          // It does not contain user personal data, but data is returned from it for contextual requirements.
  68  
  69          // The table 'quiz_attempts' stores a record of each quiz attempt.
  70          // It contains a userid which links to the user making the attempt and contains information about that attempt.
  71          $items->add_database_table('quiz_attempts', [
  72                  'attempt'                    => 'privacy:metadata:quiz_attempts:attempt',
  73                  'currentpage'                => 'privacy:metadata:quiz_attempts:currentpage',
  74                  'preview'                    => 'privacy:metadata:quiz_attempts:preview',
  75                  'state'                      => 'privacy:metadata:quiz_attempts:state',
  76                  'timestart'                  => 'privacy:metadata:quiz_attempts:timestart',
  77                  'timefinish'                 => 'privacy:metadata:quiz_attempts:timefinish',
  78                  'timemodified'               => 'privacy:metadata:quiz_attempts:timemodified',
  79                  'timemodifiedoffline'        => 'privacy:metadata:quiz_attempts:timemodifiedoffline',
  80                  'timecheckstate'             => 'privacy:metadata:quiz_attempts:timecheckstate',
  81                  'sumgrades'                  => 'privacy:metadata:quiz_attempts:sumgrades',
  82                  'gradednotificationsenttime' => 'privacy:metadata:quiz_attempts:gradednotificationsenttime',
  83              ], 'privacy:metadata:quiz_attempts');
  84  
  85          // The table 'quiz_feedback' contains the feedback responses which will be shown to users depending upon the
  86          // grade they achieve in the quiz.
  87          // It does not identify the user who wrote the feedback item so cannot be returned directly and is not
  88          // described, but relevant feedback items will be included with the quiz export for a user who has a grade.
  89  
  90          // The table 'quiz_grades' contains the current grade for each quiz/user combination.
  91          $items->add_database_table('quiz_grades', [
  92                  'quiz'                  => 'privacy:metadata:quiz_grades:quiz',
  93                  'userid'                => 'privacy:metadata:quiz_grades:userid',
  94                  'grade'                 => 'privacy:metadata:quiz_grades:grade',
  95                  'timemodified'          => 'privacy:metadata:quiz_grades:timemodified',
  96              ], 'privacy:metadata:quiz_grades');
  97  
  98          // The table 'quiz_overrides' contains any user or group overrides for users.
  99          // It should be included where data exists for a user.
 100          $items->add_database_table('quiz_overrides', [
 101                  'quiz'                  => 'privacy:metadata:quiz_overrides:quiz',
 102                  'userid'                => 'privacy:metadata:quiz_overrides:userid',
 103                  'timeopen'              => 'privacy:metadata:quiz_overrides:timeopen',
 104                  'timeclose'             => 'privacy:metadata:quiz_overrides:timeclose',
 105                  'timelimit'             => 'privacy:metadata:quiz_overrides:timelimit',
 106              ], 'privacy:metadata:quiz_overrides');
 107  
 108          // These define the structure of the quiz.
 109  
 110          // The table 'quiz_sections' contains data about the structure of a quiz.
 111          // It does not contain any user identifying data and does not need a mapping.
 112  
 113          // The table 'quiz_slots' contains data about the structure of a quiz.
 114          // It does not contain any user identifying data and does not need a mapping.
 115  
 116          // The table 'quiz_reports' does not contain any user identifying data and does not need a mapping.
 117  
 118          // The table 'quiz_statistics' contains abstract statistics about question usage and cannot be mapped to any
 119          // specific user.
 120          // It does not contain any user identifying data and does not need a mapping.
 121  
 122          // The quiz links to the 'core_question' subsystem for all question functionality.
 123          $items->add_subsystem_link('core_question', [], 'privacy:metadata:core_question');
 124  
 125          // The quiz has two subplugins..
 126          $items->add_plugintype_link('quiz', [], 'privacy:metadata:quiz');
 127          $items->add_plugintype_link('quizaccess', [], 'privacy:metadata:quizaccess');
 128  
 129          // Although the quiz supports the core_completion API and defines custom completion items, these will be
 130          // noted by the manager as all activity modules are capable of supporting this functionality.
 131  
 132          return $items;
 133      }
 134  
 135      /**
 136       * Get the list of contexts where the specified user has attempted a quiz, or been involved with manual marking
 137       * and/or grading of a quiz.
 138       *
 139       * @param   int             $userid The user to search.
 140       * @return  contextlist     $contextlist The contextlist containing the list of contexts used in this plugin.
 141       */
 142      public static function get_contexts_for_userid(int $userid) : contextlist {
 143          $resultset = new contextlist();
 144  
 145          // Users who attempted the quiz.
 146          $sql = "SELECT c.id
 147                    FROM {context} c
 148                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 149                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 150                    JOIN {quiz} q ON q.id = cm.instance
 151                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 152                   WHERE qa.userid = :userid AND qa.preview = 0";
 153          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz', 'userid' => $userid];
 154          $resultset->add_from_sql($sql, $params);
 155  
 156          // Users with quiz overrides.
 157          $sql = "SELECT c.id
 158                    FROM {context} c
 159                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 160                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 161                    JOIN {quiz} q ON q.id = cm.instance
 162                    JOIN {quiz_overrides} qo ON qo.quiz = q.id
 163                   WHERE qo.userid = :userid";
 164          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz', 'userid' => $userid];
 165          $resultset->add_from_sql($sql, $params);
 166  
 167          // Get the SQL used to link indirect question usages for the user.
 168          // This includes where a user is the manual marker on a question attempt.
 169          $qubaid = \core_question\privacy\provider::get_related_question_usages_for_user('rel', 'mod_quiz', 'qa.uniqueid', $userid);
 170  
 171          // Select the context of any quiz attempt where a user has an attempt, plus the related usages.
 172          $sql = "SELECT c.id
 173                    FROM {context} c
 174                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 175                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 176                    JOIN {quiz} q ON q.id = cm.instance
 177                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 178              " . $qubaid->from . "
 179              WHERE " . $qubaid->where() . " AND qa.preview = 0";
 180          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz'] + $qubaid->from_where_params();
 181          $resultset->add_from_sql($sql, $params);
 182  
 183          return $resultset;
 184      }
 185  
 186      /**
 187       * Get the list of users who have data within a context.
 188       *
 189       * @param   userlist    $userlist   The userlist containing the list of users who have data in this context/plugin combination.
 190       */
 191      public static function get_users_in_context(userlist $userlist) {
 192          $context = $userlist->get_context();
 193  
 194          if (!$context instanceof \context_module) {
 195              return;
 196          }
 197  
 198          $params = [
 199              'cmid'    => $context->instanceid,
 200              'modname' => 'quiz',
 201          ];
 202  
 203          // Users who attempted the quiz.
 204          $sql = "SELECT qa.userid
 205                    FROM {course_modules} cm
 206                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 207                    JOIN {quiz} q ON q.id = cm.instance
 208                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 209                   WHERE cm.id = :cmid AND qa.preview = 0";
 210          $userlist->add_from_sql('userid', $sql, $params);
 211  
 212          // Users with quiz overrides.
 213          $sql = "SELECT qo.userid
 214                    FROM {course_modules} cm
 215                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 216                    JOIN {quiz} q ON q.id = cm.instance
 217                    JOIN {quiz_overrides} qo ON qo.quiz = q.id
 218                   WHERE cm.id = :cmid";
 219          $userlist->add_from_sql('userid', $sql, $params);
 220  
 221          // Question usages in context.
 222          // This includes where a user is the manual marker on a question attempt.
 223          $sql = "SELECT qa.uniqueid
 224                    FROM {course_modules} cm
 225                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 226                    JOIN {quiz} q ON q.id = cm.instance
 227                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 228                   WHERE cm.id = :cmid AND qa.preview = 0";
 229          \core_question\privacy\provider::get_users_in_context_from_sql($userlist, 'qn', $sql, $params);
 230      }
 231  
 232      /**
 233       * Export all user data for the specified user, in the specified contexts.
 234       *
 235       * @param   approved_contextlist    $contextlist    The approved contexts to export information for.
 236       */
 237      public static function export_user_data(approved_contextlist $contextlist) {
 238          global $DB;
 239  
 240          if (!count($contextlist)) {
 241              return;
 242          }
 243  
 244          $user = $contextlist->get_user();
 245          $userid = $user->id;
 246          list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
 247  
 248          $sql = "SELECT
 249                      q.*,
 250                      qg.id AS hasgrade,
 251                      qg.grade AS bestgrade,
 252                      qg.timemodified AS grademodified,
 253                      qo.id AS hasoverride,
 254                      qo.timeopen AS override_timeopen,
 255                      qo.timeclose AS override_timeclose,
 256                      qo.timelimit AS override_timelimit,
 257                      c.id AS contextid,
 258                      cm.id AS cmid
 259                    FROM {context} c
 260              INNER JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 261              INNER JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 262              INNER JOIN {quiz} q ON q.id = cm.instance
 263               LEFT JOIN {quiz_overrides} qo ON qo.quiz = q.id AND qo.userid = :qouserid
 264               LEFT JOIN {quiz_grades} qg ON qg.quiz = q.id AND qg.userid = :qguserid
 265                   WHERE c.id {$contextsql}";
 266  
 267          $params = [
 268              'contextlevel'      => CONTEXT_MODULE,
 269              'modname'           => 'quiz',
 270              'qguserid'          => $userid,
 271              'qouserid'          => $userid,
 272          ];
 273          $params += $contextparams;
 274  
 275          // Fetch the individual quizzes.
 276          $quizzes = $DB->get_recordset_sql($sql, $params);
 277          foreach ($quizzes as $quiz) {
 278              list($course, $cm) = get_course_and_cm_from_cmid($quiz->cmid, 'quiz');
 279              $quizobj = new \quiz($quiz, $cm, $course);
 280              $context = $quizobj->get_context();
 281  
 282              $quizdata = \core_privacy\local\request\helper::get_context_data($context, $contextlist->get_user());
 283              \core_privacy\local\request\helper::export_context_files($context, $contextlist->get_user());
 284  
 285              if (!empty($quizdata->timeopen)) {
 286                  $quizdata->timeopen = transform::datetime($quiz->timeopen);
 287              }
 288              if (!empty($quizdata->timeclose)) {
 289                  $quizdata->timeclose = transform::datetime($quiz->timeclose);
 290              }
 291              if (!empty($quizdata->timelimit)) {
 292                  $quizdata->timelimit = $quiz->timelimit;
 293              }
 294  
 295              if (!empty($quiz->hasoverride)) {
 296                  $quizdata->override = (object) [];
 297  
 298                  if (!empty($quizdata->override_override_timeopen)) {
 299                      $quizdata->override->timeopen = transform::datetime($quiz->override_timeopen);
 300                  }
 301                  if (!empty($quizdata->override_timeclose)) {
 302                      $quizdata->override->timeclose = transform::datetime($quiz->override_timeclose);
 303                  }
 304                  if (!empty($quizdata->override_timelimit)) {
 305                      $quizdata->override->timelimit = $quiz->override_timelimit;
 306                  }
 307              }
 308  
 309              $quizdata->accessdata = (object) [];
 310  
 311              $components = \core_component::get_plugin_list('quizaccess');
 312              $exportparams = [
 313                      $quizobj,
 314                      $user,
 315                  ];
 316              foreach (array_keys($components) as $component) {
 317                  $classname = manager::get_provider_classname_for_component("quizaccess_$component");
 318                  if (class_exists($classname) && is_subclass_of($classname, quizaccess_provider::class)) {
 319                      $result = component_class_callback($classname, 'export_quizaccess_user_data', $exportparams);
 320                      if (count((array) $result)) {
 321                          $quizdata->accessdata->$component = $result;
 322                      }
 323                  }
 324              }
 325  
 326              if (empty((array) $quizdata->accessdata)) {
 327                  unset($quizdata->accessdata);
 328              }
 329  
 330              writer::with_context($context)
 331                  ->export_data([], $quizdata);
 332          }
 333          $quizzes->close();
 334  
 335          // Store all quiz attempt data.
 336          static::export_quiz_attempts($contextlist);
 337      }
 338  
 339      /**
 340       * Delete all data for all users in the specified context.
 341       *
 342       * @param   context                 $context   The specific context to delete data for.
 343       */
 344      public static function delete_data_for_all_users_in_context(\context $context) {
 345          if ($context->contextlevel != CONTEXT_MODULE) {
 346              // Only quiz module will be handled.
 347              return;
 348          }
 349  
 350          $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 351          if (!$cm) {
 352              // Only quiz module will be handled.
 353              return;
 354          }
 355  
 356          $quizobj = \quiz::create($cm->instance);
 357          $quiz = $quizobj->get_quiz();
 358  
 359          // Handle the 'quizaccess' subplugin.
 360          manager::plugintype_class_callback(
 361                  'quizaccess',
 362                  quizaccess_provider::class,
 363                  'delete_subplugin_data_for_all_users_in_context',
 364                  [$quizobj]
 365              );
 366  
 367          // Delete all overrides - do not log.
 368          quiz_delete_all_overrides($quiz, false);
 369  
 370          // This will delete all question attempts, quiz attempts, and quiz grades for this quiz.
 371          quiz_delete_all_attempts($quiz);
 372      }
 373  
 374      /**
 375       * Delete all user data for the specified user, in the specified contexts.
 376       *
 377       * @param   approved_contextlist    $contextlist    The approved contexts and user information to delete information for.
 378       */
 379      public static function delete_data_for_user(approved_contextlist $contextlist) {
 380          global $DB;
 381  
 382          foreach ($contextlist as $context) {
 383              if ($context->contextlevel != CONTEXT_MODULE) {
 384              // Only quiz module will be handled.
 385                  continue;
 386              }
 387  
 388              $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 389              if (!$cm) {
 390                  // Only quiz module will be handled.
 391                  continue;
 392              }
 393  
 394              // Fetch the details of the data to be removed.
 395              $quizobj = \quiz::create($cm->instance);
 396              $quiz = $quizobj->get_quiz();
 397              $user = $contextlist->get_user();
 398  
 399              // Handle the 'quizaccess' quizaccess.
 400              manager::plugintype_class_callback(
 401                      'quizaccess',
 402                      quizaccess_provider::class,
 403                      'delete_quizaccess_data_for_user',
 404                      [$quizobj, $user]
 405                  );
 406  
 407              // Remove overrides for this user.
 408              $overrides = $DB->get_records('quiz_overrides' , [
 409                  'quiz' => $quizobj->get_quizid(),
 410                  'userid' => $user->id,
 411              ]);
 412  
 413              foreach ($overrides as $override) {
 414                  quiz_delete_override($quiz, $override->id, false);
 415              }
 416  
 417              // This will delete all question attempts, quiz attempts, and quiz grades for this quiz.
 418              quiz_delete_user_attempts($quizobj, $user);
 419          }
 420      }
 421  
 422      /**
 423       * Delete multiple users within a single context.
 424       *
 425       * @param   approved_userlist       $userlist The approved context and user information to delete information for.
 426       */
 427      public static function delete_data_for_users(approved_userlist $userlist) {
 428          global $DB;
 429  
 430          $context = $userlist->get_context();
 431  
 432          if ($context->contextlevel != CONTEXT_MODULE) {
 433              // Only quiz module will be handled.
 434              return;
 435          }
 436  
 437          $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 438          if (!$cm) {
 439              // Only quiz module will be handled.
 440              return;
 441          }
 442  
 443          $quizobj = \quiz::create($cm->instance);
 444          $quiz = $quizobj->get_quiz();
 445  
 446          $userids = $userlist->get_userids();
 447  
 448          // Handle the 'quizaccess' quizaccess.
 449          manager::plugintype_class_callback(
 450                  'quizaccess',
 451                  quizaccess_user_provider::class,
 452                  'delete_quizaccess_data_for_users',
 453                  [$userlist]
 454          );
 455  
 456          foreach ($userids as $userid) {
 457              // Remove overrides for this user.
 458              $overrides = $DB->get_records('quiz_overrides' , [
 459                  'quiz' => $quizobj->get_quizid(),
 460                  'userid' => $userid,
 461              ]);
 462  
 463              foreach ($overrides as $override) {
 464                  quiz_delete_override($quiz, $override->id, false);
 465              }
 466  
 467              // This will delete all question attempts, quiz attempts, and quiz grades for this user in the given quiz.
 468              quiz_delete_user_attempts($quizobj, (object)['id' => $userid]);
 469          }
 470      }
 471  
 472      /**
 473       * Store all quiz attempts for the contextlist.
 474       *
 475       * @param   approved_contextlist    $contextlist
 476       */
 477      protected static function export_quiz_attempts(approved_contextlist $contextlist) {
 478          global $DB;
 479  
 480          $userid = $contextlist->get_user()->id;
 481          list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
 482          $qubaid = \core_question\privacy\provider::get_related_question_usages_for_user('rel', 'mod_quiz', 'qa.uniqueid', $userid);
 483  
 484          $sql = "SELECT
 485                      c.id AS contextid,
 486                      cm.id AS cmid,
 487                      qa.*
 488                    FROM {context} c
 489                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 490                    JOIN {modules} m ON m.id = cm.module AND m.name = 'quiz'
 491                    JOIN {quiz} q ON q.id = cm.instance
 492                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 493              " . $qubaid->from. "
 494              WHERE (
 495                  qa.userid = :qauserid OR
 496                  " . $qubaid->where() . "
 497              ) AND qa.preview = 0
 498          ";
 499  
 500          $params = array_merge(
 501                  [
 502                      'contextlevel'      => CONTEXT_MODULE,
 503                      'qauserid'          => $userid,
 504                  ],
 505                  $qubaid->from_where_params()
 506              );
 507  
 508          $attempts = $DB->get_recordset_sql($sql, $params);
 509          foreach ($attempts as $attempt) {
 510              $quiz = $DB->get_record('quiz', ['id' => $attempt->quiz]);
 511              $context = \context_module::instance($attempt->cmid);
 512              $attemptsubcontext = helper::get_quiz_attempt_subcontext($attempt, $contextlist->get_user());
 513              $options = quiz_get_review_options($quiz, $attempt, $context);
 514  
 515              if ($attempt->userid == $userid) {
 516                  // This attempt was made by the user.
 517                  // They 'own' all data on it.
 518                  // Store the question usage data.
 519                  \core_question\privacy\provider::export_question_usage($userid,
 520                          $context,
 521                          $attemptsubcontext,
 522                          $attempt->uniqueid,
 523                          $options,
 524                          true
 525                      );
 526  
 527                  // Store the quiz attempt data.
 528                  $data = (object) [
 529                      'state' => \quiz_attempt::state_name($attempt->state),
 530                  ];
 531  
 532                  if (!empty($attempt->timestart)) {
 533                      $data->timestart = transform::datetime($attempt->timestart);
 534                  }
 535                  if (!empty($attempt->timefinish)) {
 536                      $data->timefinish = transform::datetime($attempt->timefinish);
 537                  }
 538                  if (!empty($attempt->timemodified)) {
 539                      $data->timemodified = transform::datetime($attempt->timemodified);
 540                  }
 541                  if (!empty($attempt->timemodifiedoffline)) {
 542                      $data->timemodifiedoffline = transform::datetime($attempt->timemodifiedoffline);
 543                  }
 544                  if (!empty($attempt->timecheckstate)) {
 545                      $data->timecheckstate = transform::datetime($attempt->timecheckstate);
 546                  }
 547                  if (!empty($attempt->gradednotificationsenttime)) {
 548                      $data->gradednotificationsenttime = transform::datetime($attempt->gradednotificationsenttime);
 549                  }
 550  
 551                  if ($options->marks == \question_display_options::MARK_AND_MAX) {
 552                      $grade = quiz_rescale_grade($attempt->sumgrades, $quiz, false);
 553                      $data->grade = (object) [
 554                              'grade' => quiz_format_grade($quiz, $grade),
 555                              'feedback' => quiz_feedback_for_grade($grade, $quiz, $context),
 556                          ];
 557                  }
 558  
 559                  writer::with_context($context)
 560                      ->export_data($attemptsubcontext, $data);
 561              } else {
 562                  // This attempt was made by another user.
 563                  // The current user may have marked part of the quiz attempt.
 564                  \core_question\privacy\provider::export_question_usage(
 565                          $userid,
 566                          $context,
 567                          $attemptsubcontext,
 568                          $attempt->uniqueid,
 569                          $options,
 570                          false
 571                      );
 572              }
 573          }
 574          $attempts->close();
 575      }
 576  }