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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402]

   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  use mod_quiz\quiz_attempt;
  38  
  39  defined('MOODLE_INTERNAL') || die();
  40  
  41  require_once($CFG->dirroot . '/mod/quiz/lib.php');
  42  require_once($CFG->dirroot . '/mod/quiz/locallib.php');
  43  
  44  /**
  45   * Privacy Subsystem implementation for mod_quiz.
  46   *
  47   * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
  48   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  49   */
  50  class provider implements
  51      // This plugin has data.
  52      \core_privacy\local\metadata\provider,
  53  
  54      // This plugin currently implements the original plugin_provider interface.
  55      \core_privacy\local\request\plugin\provider,
  56  
  57      // This plugin is capable of determining which users have data within it.
  58      \core_privacy\local\request\core_userlist_provider {
  59  
  60      /**
  61       * Get the list of contexts that contain user information for the specified user.
  62       *
  63       * @param   collection  $items  The collection to add metadata to.
  64       * @return  collection  The array of metadata
  65       */
  66      public static function get_metadata(collection $items) : collection {
  67          // The table 'quiz' stores a record for each quiz.
  68          // It does not contain user personal data, but data is returned from it for contextual requirements.
  69  
  70          // The table 'quiz_attempts' stores a record of each quiz attempt.
  71          // It contains a userid which links to the user making the attempt and contains information about that attempt.
  72          $items->add_database_table('quiz_attempts', [
  73                  'attempt'                    => 'privacy:metadata:quiz_attempts:attempt',
  74                  'currentpage'                => 'privacy:metadata:quiz_attempts:currentpage',
  75                  'preview'                    => 'privacy:metadata:quiz_attempts:preview',
  76                  'state'                      => 'privacy:metadata:quiz_attempts:state',
  77                  'timestart'                  => 'privacy:metadata:quiz_attempts:timestart',
  78                  'timefinish'                 => 'privacy:metadata:quiz_attempts:timefinish',
  79                  'timemodified'               => 'privacy:metadata:quiz_attempts:timemodified',
  80                  'timemodifiedoffline'        => 'privacy:metadata:quiz_attempts:timemodifiedoffline',
  81                  'timecheckstate'             => 'privacy:metadata:quiz_attempts:timecheckstate',
  82                  'sumgrades'                  => 'privacy:metadata:quiz_attempts:sumgrades',
  83                  'gradednotificationsenttime' => 'privacy:metadata:quiz_attempts:gradednotificationsenttime',
  84              ], 'privacy:metadata:quiz_attempts');
  85  
  86          // The table 'quiz_feedback' contains the feedback responses which will be shown to users depending upon the
  87          // grade they achieve in the quiz.
  88          // It does not identify the user who wrote the feedback item so cannot be returned directly and is not
  89          // described, but relevant feedback items will be included with the quiz export for a user who has a grade.
  90  
  91          // The table 'quiz_grades' contains the current grade for each quiz/user combination.
  92          $items->add_database_table('quiz_grades', [
  93                  'quiz'                  => 'privacy:metadata:quiz_grades:quiz',
  94                  'userid'                => 'privacy:metadata:quiz_grades:userid',
  95                  'grade'                 => 'privacy:metadata:quiz_grades:grade',
  96                  'timemodified'          => 'privacy:metadata:quiz_grades:timemodified',
  97              ], 'privacy:metadata:quiz_grades');
  98  
  99          // The table 'quiz_overrides' contains any user or group overrides for users.
 100          // It should be included where data exists for a user.
 101          $items->add_database_table('quiz_overrides', [
 102                  'quiz'                  => 'privacy:metadata:quiz_overrides:quiz',
 103                  'userid'                => 'privacy:metadata:quiz_overrides:userid',
 104                  'timeopen'              => 'privacy:metadata:quiz_overrides:timeopen',
 105                  'timeclose'             => 'privacy:metadata:quiz_overrides:timeclose',
 106                  'timelimit'             => 'privacy:metadata:quiz_overrides:timelimit',
 107              ], 'privacy:metadata:quiz_overrides');
 108  
 109          // These define the structure of the quiz.
 110  
 111          // The table 'quiz_sections' contains data about the structure of a quiz.
 112          // It does not contain any user identifying data and does not need a mapping.
 113  
 114          // The table 'quiz_slots' contains data about the structure of a quiz.
 115          // It does not contain any user identifying data and does not need a mapping.
 116  
 117          // The table 'quiz_reports' does not contain any user identifying data and does not need a mapping.
 118  
 119          // The table 'quiz_statistics' contains abstract statistics about question usage and cannot be mapped to any
 120          // specific user.
 121          // It does not contain any user identifying data and does not need a mapping.
 122  
 123          // The quiz links to the 'core_question' subsystem for all question functionality.
 124          $items->add_subsystem_link('core_question', [], 'privacy:metadata:core_question');
 125  
 126          // The quiz has two subplugins..
 127          $items->add_plugintype_link('quiz', [], 'privacy:metadata:quiz');
 128          $items->add_plugintype_link('quizaccess', [], 'privacy:metadata:quizaccess');
 129  
 130          // Although the quiz supports the core_completion API and defines custom completion items, these will be
 131          // noted by the manager as all activity modules are capable of supporting this functionality.
 132  
 133          return $items;
 134      }
 135  
 136      /**
 137       * Get the list of contexts where the specified user has attempted a quiz, or been involved with manual marking
 138       * and/or grading of a quiz.
 139       *
 140       * @param   int             $userid The user to search.
 141       * @return  contextlist     $contextlist The contextlist containing the list of contexts used in this plugin.
 142       */
 143      public static function get_contexts_for_userid(int $userid) : contextlist {
 144          $resultset = new contextlist();
 145  
 146          // Users who attempted the quiz.
 147          $sql = "SELECT c.id
 148                    FROM {context} c
 149                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 150                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 151                    JOIN {quiz} q ON q.id = cm.instance
 152                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 153                   WHERE qa.userid = :userid AND qa.preview = 0";
 154          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz', 'userid' => $userid];
 155          $resultset->add_from_sql($sql, $params);
 156  
 157          // Users with quiz overrides.
 158          $sql = "SELECT c.id
 159                    FROM {context} c
 160                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 161                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 162                    JOIN {quiz} q ON q.id = cm.instance
 163                    JOIN {quiz_overrides} qo ON qo.quiz = q.id
 164                   WHERE qo.userid = :userid";
 165          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz', 'userid' => $userid];
 166          $resultset->add_from_sql($sql, $params);
 167  
 168          // Get the SQL used to link indirect question usages for the user.
 169          // This includes where a user is the manual marker on a question attempt.
 170          $qubaid = \core_question\privacy\provider::get_related_question_usages_for_user('rel', 'mod_quiz', 'qa.uniqueid', $userid);
 171  
 172          // Select the context of any quiz attempt where a user has an attempt, plus the related usages.
 173          $sql = "SELECT c.id
 174                    FROM {context} c
 175                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 176                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 177                    JOIN {quiz} q ON q.id = cm.instance
 178                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 179              " . $qubaid->from . "
 180              WHERE " . $qubaid->where() . " AND qa.preview = 0";
 181          $params = ['contextlevel' => CONTEXT_MODULE, 'modname' => 'quiz'] + $qubaid->from_where_params();
 182          $resultset->add_from_sql($sql, $params);
 183  
 184          return $resultset;
 185      }
 186  
 187      /**
 188       * Get the list of users who have data within a context.
 189       *
 190       * @param   userlist    $userlist   The userlist containing the list of users who have data in this context/plugin combination.
 191       */
 192      public static function get_users_in_context(userlist $userlist) {
 193          $context = $userlist->get_context();
 194  
 195          if (!$context instanceof \context_module) {
 196              return;
 197          }
 198  
 199          $params = [
 200              'cmid'    => $context->instanceid,
 201              'modname' => 'quiz',
 202          ];
 203  
 204          // Users who attempted the quiz.
 205          $sql = "SELECT qa.userid
 206                    FROM {course_modules} cm
 207                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 208                    JOIN {quiz} q ON q.id = cm.instance
 209                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 210                   WHERE cm.id = :cmid AND qa.preview = 0";
 211          $userlist->add_from_sql('userid', $sql, $params);
 212  
 213          // Users with quiz overrides.
 214          $sql = "SELECT qo.userid
 215                    FROM {course_modules} cm
 216                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 217                    JOIN {quiz} q ON q.id = cm.instance
 218                    JOIN {quiz_overrides} qo ON qo.quiz = q.id
 219                   WHERE cm.id = :cmid";
 220          $userlist->add_from_sql('userid', $sql, $params);
 221  
 222          // Question usages in context.
 223          // This includes where a user is the manual marker on a question attempt.
 224          $sql = "SELECT qa.uniqueid
 225                    FROM {course_modules} cm
 226                    JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 227                    JOIN {quiz} q ON q.id = cm.instance
 228                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 229                   WHERE cm.id = :cmid AND qa.preview = 0";
 230          \core_question\privacy\provider::get_users_in_context_from_sql($userlist, 'qn', $sql, $params);
 231      }
 232  
 233      /**
 234       * Export all user data for the specified user, in the specified contexts.
 235       *
 236       * @param   approved_contextlist    $contextlist    The approved contexts to export information for.
 237       */
 238      public static function export_user_data(approved_contextlist $contextlist) {
 239          global $DB;
 240  
 241          if (!count($contextlist)) {
 242              return;
 243          }
 244  
 245          $user = $contextlist->get_user();
 246          $userid = $user->id;
 247          list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
 248  
 249          $sql = "SELECT
 250                      q.*,
 251                      qg.id AS hasgrade,
 252                      qg.grade AS bestgrade,
 253                      qg.timemodified AS grademodified,
 254                      qo.id AS hasoverride,
 255                      qo.timeopen AS override_timeopen,
 256                      qo.timeclose AS override_timeclose,
 257                      qo.timelimit AS override_timelimit,
 258                      c.id AS contextid,
 259                      cm.id AS cmid
 260                    FROM {context} c
 261              INNER JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 262              INNER JOIN {modules} m ON m.id = cm.module AND m.name = :modname
 263              INNER JOIN {quiz} q ON q.id = cm.instance
 264               LEFT JOIN {quiz_overrides} qo ON qo.quiz = q.id AND qo.userid = :qouserid
 265               LEFT JOIN {quiz_grades} qg ON qg.quiz = q.id AND qg.userid = :qguserid
 266                   WHERE c.id {$contextsql}";
 267  
 268          $params = [
 269              'contextlevel'      => CONTEXT_MODULE,
 270              'modname'           => 'quiz',
 271              'qguserid'          => $userid,
 272              'qouserid'          => $userid,
 273          ];
 274          $params += $contextparams;
 275  
 276          // Fetch the individual quizzes.
 277          $quizzes = $DB->get_recordset_sql($sql, $params);
 278          foreach ($quizzes as $quiz) {
 279              list($course, $cm) = get_course_and_cm_from_cmid($quiz->cmid, 'quiz');
 280              $quizobj = new \mod_quiz\quiz_settings($quiz, $cm, $course);
 281              $context = $quizobj->get_context();
 282  
 283              $quizdata = \core_privacy\local\request\helper::get_context_data($context, $contextlist->get_user());
 284              \core_privacy\local\request\helper::export_context_files($context, $contextlist->get_user());
 285  
 286              if (!empty($quizdata->timeopen)) {
 287                  $quizdata->timeopen = transform::datetime($quiz->timeopen);
 288              }
 289              if (!empty($quizdata->timeclose)) {
 290                  $quizdata->timeclose = transform::datetime($quiz->timeclose);
 291              }
 292              if (!empty($quizdata->timelimit)) {
 293                  $quizdata->timelimit = $quiz->timelimit;
 294              }
 295  
 296              if (!empty($quiz->hasoverride)) {
 297                  $quizdata->override = (object) [];
 298  
 299                  if (!empty($quizdata->override_override_timeopen)) {
 300                      $quizdata->override->timeopen = transform::datetime($quiz->override_timeopen);
 301                  }
 302                  if (!empty($quizdata->override_timeclose)) {
 303                      $quizdata->override->timeclose = transform::datetime($quiz->override_timeclose);
 304                  }
 305                  if (!empty($quizdata->override_timelimit)) {
 306                      $quizdata->override->timelimit = $quiz->override_timelimit;
 307                  }
 308              }
 309  
 310              $quizdata->accessdata = (object) [];
 311  
 312              $components = \core_component::get_plugin_list('quizaccess');
 313              $exportparams = [
 314                      $quizobj,
 315                      $user,
 316                  ];
 317              foreach (array_keys($components) as $component) {
 318                  $classname = manager::get_provider_classname_for_component("quizaccess_$component");
 319                  if (class_exists($classname) && is_subclass_of($classname, quizaccess_provider::class)) {
 320                      $result = component_class_callback($classname, 'export_quizaccess_user_data', $exportparams);
 321                      if (count((array) $result)) {
 322                          $quizdata->accessdata->$component = $result;
 323                      }
 324                  }
 325              }
 326  
 327              if (empty((array) $quizdata->accessdata)) {
 328                  unset($quizdata->accessdata);
 329              }
 330  
 331              writer::with_context($context)
 332                  ->export_data([], $quizdata);
 333          }
 334          $quizzes->close();
 335  
 336          // Store all quiz attempt data.
 337          static::export_quiz_attempts($contextlist);
 338      }
 339  
 340      /**
 341       * Delete all data for all users in the specified context.
 342       *
 343       * @param   context                 $context   The specific context to delete data for.
 344       */
 345      public static function delete_data_for_all_users_in_context(\context $context) {
 346          if ($context->contextlevel != CONTEXT_MODULE) {
 347              // Only quiz module will be handled.
 348              return;
 349          }
 350  
 351          $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 352          if (!$cm) {
 353              // Only quiz module will be handled.
 354              return;
 355          }
 356  
 357          $quizobj = \mod_quiz\quiz_settings::create($cm->instance);
 358          $quiz = $quizobj->get_quiz();
 359  
 360          // Handle the 'quizaccess' subplugin.
 361          manager::plugintype_class_callback(
 362                  'quizaccess',
 363                  quizaccess_provider::class,
 364                  'delete_subplugin_data_for_all_users_in_context',
 365                  [$quizobj]
 366              );
 367  
 368          // Delete all overrides - do not log.
 369          quiz_delete_all_overrides($quiz, false);
 370  
 371          // This will delete all question attempts, quiz attempts, and quiz grades for this quiz.
 372          quiz_delete_all_attempts($quiz);
 373      }
 374  
 375      /**
 376       * Delete all user data for the specified user, in the specified contexts.
 377       *
 378       * @param   approved_contextlist    $contextlist    The approved contexts and user information to delete information for.
 379       */
 380      public static function delete_data_for_user(approved_contextlist $contextlist) {
 381          global $DB;
 382  
 383          foreach ($contextlist as $context) {
 384              if ($context->contextlevel != CONTEXT_MODULE) {
 385              // Only quiz module will be handled.
 386                  continue;
 387              }
 388  
 389              $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 390              if (!$cm) {
 391                  // Only quiz module will be handled.
 392                  continue;
 393              }
 394  
 395              // Fetch the details of the data to be removed.
 396              $quizobj = \mod_quiz\quiz_settings::create($cm->instance);
 397              $quiz = $quizobj->get_quiz();
 398              $user = $contextlist->get_user();
 399  
 400              // Handle the 'quizaccess' quizaccess.
 401              manager::plugintype_class_callback(
 402                      'quizaccess',
 403                      quizaccess_provider::class,
 404                      'delete_quizaccess_data_for_user',
 405                      [$quizobj, $user]
 406                  );
 407  
 408              // Remove overrides for this user.
 409              $overrides = $DB->get_records('quiz_overrides' , [
 410                  'quiz' => $quizobj->get_quizid(),
 411                  'userid' => $user->id,
 412              ]);
 413  
 414              foreach ($overrides as $override) {
 415                  quiz_delete_override($quiz, $override->id, false);
 416              }
 417  
 418              // This will delete all question attempts, quiz attempts, and quiz grades for this quiz.
 419              quiz_delete_user_attempts($quizobj, $user);
 420          }
 421      }
 422  
 423      /**
 424       * Delete multiple users within a single context.
 425       *
 426       * @param   approved_userlist       $userlist The approved context and user information to delete information for.
 427       */
 428      public static function delete_data_for_users(approved_userlist $userlist) {
 429          global $DB;
 430  
 431          $context = $userlist->get_context();
 432  
 433          if ($context->contextlevel != CONTEXT_MODULE) {
 434              // Only quiz module will be handled.
 435              return;
 436          }
 437  
 438          $cm = get_coursemodule_from_id('quiz', $context->instanceid);
 439          if (!$cm) {
 440              // Only quiz module will be handled.
 441              return;
 442          }
 443  
 444          $quizobj = \mod_quiz\quiz_settings::create($cm->instance);
 445          $quiz = $quizobj->get_quiz();
 446  
 447          $userids = $userlist->get_userids();
 448  
 449          // Handle the 'quizaccess' quizaccess.
 450          manager::plugintype_class_callback(
 451                  'quizaccess',
 452                  quizaccess_user_provider::class,
 453                  'delete_quizaccess_data_for_users',
 454                  [$userlist]
 455          );
 456  
 457          foreach ($userids as $userid) {
 458              // Remove overrides for this user.
 459              $overrides = $DB->get_records('quiz_overrides' , [
 460                  'quiz' => $quizobj->get_quizid(),
 461                  'userid' => $userid,
 462              ]);
 463  
 464              foreach ($overrides as $override) {
 465                  quiz_delete_override($quiz, $override->id, false);
 466              }
 467  
 468              // This will delete all question attempts, quiz attempts, and quiz grades for this user in the given quiz.
 469              quiz_delete_user_attempts($quizobj, (object)['id' => $userid]);
 470          }
 471      }
 472  
 473      /**
 474       * Store all quiz attempts for the contextlist.
 475       *
 476       * @param   approved_contextlist    $contextlist
 477       */
 478      protected static function export_quiz_attempts(approved_contextlist $contextlist) {
 479          global $DB;
 480  
 481          $userid = $contextlist->get_user()->id;
 482          list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
 483          $qubaid = \core_question\privacy\provider::get_related_question_usages_for_user('rel', 'mod_quiz', 'qa.uniqueid', $userid);
 484  
 485          $sql = "SELECT
 486                      c.id AS contextid,
 487                      cm.id AS cmid,
 488                      qa.*
 489                    FROM {context} c
 490                    JOIN {course_modules} cm ON cm.id = c.instanceid AND c.contextlevel = :contextlevel
 491                    JOIN {modules} m ON m.id = cm.module AND m.name = 'quiz'
 492                    JOIN {quiz} q ON q.id = cm.instance
 493                    JOIN {quiz_attempts} qa ON qa.quiz = q.id
 494              " . $qubaid->from. "
 495              WHERE (
 496                  qa.userid = :qauserid OR
 497                  " . $qubaid->where() . "
 498              ) AND qa.preview = 0
 499          ";
 500  
 501          $params = array_merge(
 502                  [
 503                      'contextlevel'      => CONTEXT_MODULE,
 504                      'qauserid'          => $userid,
 505                  ],
 506                  $qubaid->from_where_params()
 507              );
 508  
 509          $attempts = $DB->get_recordset_sql($sql, $params);
 510          foreach ($attempts as $attempt) {
 511              $quiz = $DB->get_record('quiz', ['id' => $attempt->quiz]);
 512              $context = \context_module::instance($attempt->cmid);
 513              $attemptsubcontext = helper::get_quiz_attempt_subcontext($attempt, $contextlist->get_user());
 514              $options = quiz_get_review_options($quiz, $attempt, $context);
 515  
 516              if ($attempt->userid == $userid) {
 517                  // This attempt was made by the user.
 518                  // They 'own' all data on it.
 519                  // Store the question usage data.
 520                  \core_question\privacy\provider::export_question_usage($userid,
 521                          $context,
 522                          $attemptsubcontext,
 523                          $attempt->uniqueid,
 524                          $options,
 525                          true
 526                      );
 527  
 528                  // Store the quiz attempt data.
 529                  $data = (object) [
 530                      'state' => quiz_attempt::state_name($attempt->state),
 531                  ];
 532  
 533                  if (!empty($attempt->timestart)) {
 534                      $data->timestart = transform::datetime($attempt->timestart);
 535                  }
 536                  if (!empty($attempt->timefinish)) {
 537                      $data->timefinish = transform::datetime($attempt->timefinish);
 538                  }
 539                  if (!empty($attempt->timemodified)) {
 540                      $data->timemodified = transform::datetime($attempt->timemodified);
 541                  }
 542                  if (!empty($attempt->timemodifiedoffline)) {
 543                      $data->timemodifiedoffline = transform::datetime($attempt->timemodifiedoffline);
 544                  }
 545                  if (!empty($attempt->timecheckstate)) {
 546                      $data->timecheckstate = transform::datetime($attempt->timecheckstate);
 547                  }
 548                  if (!empty($attempt->gradednotificationsenttime)) {
 549                      $data->gradednotificationsenttime = transform::datetime($attempt->gradednotificationsenttime);
 550                  }
 551  
 552                  if ($options->marks == \question_display_options::MARK_AND_MAX) {
 553                      $grade = quiz_rescale_grade($attempt->sumgrades, $quiz, false);
 554                      $data->grade = (object) [
 555                              'grade' => quiz_format_grade($quiz, $grade),
 556                              'feedback' => quiz_feedback_for_grade($grade, $quiz, $context),
 557                          ];
 558                  }
 559  
 560                  writer::with_context($context)
 561                      ->export_data($attemptsubcontext, $data);
 562              } else {
 563                  // This attempt was made by another user.
 564                  // The current user may have marked part of the quiz attempt.
 565                  \core_question\privacy\provider::export_question_usage(
 566                          $userid,
 567                          $context,
 568                          $attemptsubcontext,
 569                          $attempt->uniqueid,
 570                          $options,
 571                          false
 572                      );
 573              }
 574          }
 575          $attempts->close();
 576      }
 577  }