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Differences Between: [Versions 311 and 402] [Versions 311 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   * This is the external method to return the information needed to list all enrolled user attempts.
  19   *
  20   * @package    mod_h5pactivity
  21   * @since      Moodle 3.11
  22   * @copyright  2020 Ilya Tregubov <ilya@moodle.com>
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  namespace mod_h5pactivity\external;
  27  
  28  defined('MOODLE_INTERNAL') || die();
  29  
  30  global $CFG;
  31  require_once($CFG->libdir . '/externallib.php');
  32  
  33  use mod_h5pactivity\local\manager;
  34  use mod_h5pactivity\local\attempt;
  35  use mod_h5pactivity\local\report;
  36  use mod_h5pactivity\local\report\attempts as report_attempts;
  37  use external_api;
  38  use external_function_parameters;
  39  use external_value;
  40  use external_multiple_structure;
  41  use external_single_structure;
  42  use external_warnings;
  43  use moodle_exception;
  44  use context_module;
  45  use stdClass;
  46  
  47  /**
  48   * This is the external method to return the information needed to list all enrolled user attempts.
  49   *
  50   * @copyright  2020 Ilya Tregubov <ilya@moodle.com>
  51   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  52   */
  53  class get_user_attempts extends external_api {
  54  
  55      /**
  56       * Webservice parameters.
  57       *
  58       * @return external_function_parameters
  59       */
  60      public static function execute_parameters(): external_function_parameters {
  61          return new external_function_parameters(
  62              [
  63                  'h5pactivityid' => new external_value(PARAM_INT, 'h5p activity instance id'),
  64                  'sortorder' => new external_value(PARAM_TEXT,
  65                      'sort by either user id, firstname or lastname (with optional asc/desc)', VALUE_DEFAULT, 'id ASC'),
  66                  'page' => new external_value(PARAM_INT, 'current page', VALUE_DEFAULT, -1),
  67                  'perpage' => new external_value(PARAM_INT, 'items per page', VALUE_DEFAULT, 0),
  68                  'firstinitial' => new external_value(PARAM_TEXT, 'Users whose first name ' .
  69                      'starts with $firstinitial', VALUE_DEFAULT, ''),
  70                  'lastinitial' => new external_value(PARAM_TEXT, 'Users whose last name ' .
  71                      'starts with $lastinitial', VALUE_DEFAULT, ''),
  72              ]
  73          );
  74      }
  75  
  76      /**
  77       * Return user attempts information in a h5p activity.
  78       *
  79       * @throws  moodle_exception if the user cannot see the report
  80       * @param  int $h5pactivityid The h5p activity id
  81       * @param int $sortorder The sort order
  82       * @param int $page page number
  83       * @param int $perpage items per page
  84       * @param int $firstinitial Users whose first name starts with $firstinitial
  85       * @param int $lastinitial Users whose last name starts with $lastinitial
  86       * @return stdClass report data
  87       */
  88      public static function execute(int $h5pactivityid, $sortorder = 'id ASC', ?int $page = 0,
  89              ?int $perpage = 0, $firstinitial = '', $lastinitial = ''): stdClass {
  90          [
  91              'h5pactivityid' => $h5pactivityid,
  92              'sortorder' => $sortorder,
  93              'page' => $page,
  94              'perpage' => $perpage,
  95              'firstinitial' => $firstinitial,
  96              'lastinitial' => $lastinitial,
  97          ] = external_api::validate_parameters(self::execute_parameters(), [
  98              'h5pactivityid' => $h5pactivityid,
  99              'sortorder' => $sortorder,
 100              'page' => $page,
 101              'perpage' => $perpage,
 102              'firstinitial' => $firstinitial,
 103              'lastinitial' => $lastinitial,
 104          ]);
 105  
 106          $warnings = [];
 107  
 108          [$course, $cm] = get_course_and_cm_from_instance($h5pactivityid, 'h5pactivity');
 109  
 110          $context = context_module::instance($cm->id);
 111          self::validate_context($context);
 112  
 113          $manager = manager::create_from_coursemodule($cm);
 114          $instance = $manager->get_instance();
 115          if (!$manager->can_view_all_attempts()) {
 116              throw new moodle_exception('nopermissiontoviewattempts', 'error', '', null,
 117                  'h5pactivity:reviewattempts required view attempts of all enrolled users.');
 118          }
 119  
 120          // Ensure sortorder parameter is safe to use. Fallback to default value of the parameter itself.
 121          $sortorderparts = explode(' ', $sortorder, 2);
 122          $sortorder = get_safe_orderby([
 123              'id' => 'u.id',
 124              'firstname' => 'u.firstname',
 125              'lastname' => 'u.lastname',
 126              'default' => 'u.id',
 127          ], $sortorderparts[0], $sortorderparts[1] ?? '');
 128  
 129          $users = self::get_active_users($manager, 'u.id, u.firstname, u.lastname',
 130              $sortorder, $page * $perpage, $perpage);
 131  
 132          $usersattempts = [];
 133  
 134          foreach ($users as $user) {
 135  
 136              if ($firstinitial) {
 137                  if (strpos($user->firstname, $firstinitial) === false) {
 138                      continue;
 139                  }
 140              }
 141  
 142              if ($lastinitial) {
 143                  if (strpos($user->lastname, $lastinitial) === false) {
 144                      continue;
 145                  }
 146              }
 147  
 148              $report = $manager->get_report($user->id);
 149              if ($report && $report instanceof report_attempts) {
 150                  $usersattempts[] = self::export_user_attempts($report, $user->id);
 151              } else {
 152                  $warnings[] = [
 153                      'item' => 'user',
 154                      'itemid' => $user->id,
 155                      'warningcode' => '1',
 156                      'message' => "Cannot access user attempts",
 157                  ];
 158              }
 159          }
 160  
 161          $result = (object)[
 162              'activityid' => $instance->id,
 163              'usersattempts' => $usersattempts,
 164              'warnings' => $warnings,
 165          ];
 166  
 167          return $result;
 168      }
 169  
 170      /**
 171       * Generate the active users list
 172       *
 173       * @param manager $manager the h5pactivity manager
 174       * @param string $userfields the user fields to get
 175       * @param string $sortorder the SQL sortorder
 176       * @param int $limitfrom SQL limit from
 177       * @param int $limitnum SQL limit num
 178       */
 179      private static function get_active_users(
 180          manager $manager,
 181          string $userfields = 'u.*',
 182          string $sortorder = '',
 183          int $limitfrom = 0,
 184          int $limitnum = 0
 185      ): array {
 186  
 187          global $DB;
 188  
 189          $capjoin = $manager->get_active_users_join(true);
 190  
 191          // Final SQL.
 192          $sql = "SELECT DISTINCT {$userfields}
 193                    FROM {user} u {$capjoin->joins}
 194                   WHERE {$capjoin->wheres}
 195                         {$sortorder}";
 196  
 197          return $DB->get_records_sql($sql, $capjoin->params, $limitfrom, $limitnum);
 198      }
 199  
 200      /**
 201       * Export attempts data for a specific user.
 202       *
 203       * @param report $report the report attempts object
 204       * @param int $userid the user id
 205       * @return stdClass
 206       */
 207      private static function export_user_attempts(report $report, int $userid): stdClass {
 208          $scored = $report->get_scored();
 209          $attempts = $report->get_attempts();
 210  
 211          $result = (object)[
 212              'userid' => $userid,
 213              'attempts' => [],
 214          ];
 215  
 216          foreach ($attempts as $attempt) {
 217              $result->attempts[] = self::export_attempt($attempt);
 218          }
 219  
 220          if (!empty($scored)) {
 221              $result->scored = (object)[
 222                  'title' => $scored->title,
 223                  'grademethod' => $scored->grademethod,
 224                  'attempts' => [self::export_attempt($scored->attempt)],
 225              ];
 226          }
 227  
 228          return $result;
 229      }
 230  
 231      /**
 232       * Return a data object from an attempt.
 233       *
 234       * @param attempt $attempt the attempt object
 235       * @return stdClass a WS compatible version of the attempt
 236       */
 237      private static function export_attempt(attempt $attempt): stdClass {
 238          $result = (object)[
 239              'id' => $attempt->get_id(),
 240              'h5pactivityid' => $attempt->get_h5pactivityid(),
 241              'userid' => $attempt->get_userid(),
 242              'timecreated' => $attempt->get_timecreated(),
 243              'timemodified' => $attempt->get_timemodified(),
 244              'attempt' => $attempt->get_attempt(),
 245              'rawscore' => $attempt->get_rawscore(),
 246              'maxscore' => $attempt->get_maxscore(),
 247              'duration' => $attempt->get_duration(),
 248              'scaled' => $attempt->get_scaled(),
 249          ];
 250          if ($attempt->get_completion() !== null) {
 251              $result->completion = $attempt->get_completion();
 252          }
 253          if ($attempt->get_success() !== null) {
 254              $result->success = $attempt->get_success();
 255          }
 256          return $result;
 257      }
 258  
 259      /**
 260       * Describes the get_h5pactivity_access_information return value.
 261       *
 262       * @return external_single_structure
 263       */
 264      public static function execute_returns(): external_single_structure {
 265          return new external_single_structure([
 266              'activityid' => new external_value(PARAM_INT, 'Activity course module ID'),
 267              'usersattempts' => new external_multiple_structure(
 268                  self::get_user_attempts_returns(), 'The complete users attempts list'
 269              ),
 270              'warnings' => new external_warnings(),
 271          ], 'Activity attempts data');
 272      }
 273  
 274      /**
 275       * Describes the get_h5pactivity_access_information return value.
 276       *
 277       * @return external_single_structure
 278       */
 279      private static function get_user_attempts_returns(): external_single_structure {
 280          $structure = [
 281              'userid' => new external_value(PARAM_INT, 'The user id'),
 282              'attempts' => new external_multiple_structure(self::get_user_attempt_returns(), 'The complete attempts list'),
 283              'scored' => new external_single_structure([
 284                  'title' => new external_value(PARAM_NOTAGS, 'Scored attempts title'),
 285                  'grademethod' => new external_value(PARAM_NOTAGS, 'Grading method'),
 286                  'attempts' => new external_multiple_structure(self::get_user_attempt_returns(), 'List of the grading attempts'),
 287              ], 'Attempts used to grade the activity', VALUE_OPTIONAL),
 288          ];
 289          return new external_single_structure($structure);
 290      }
 291  
 292      /**
 293       * Return the external structure of an attempt.
 294       *
 295       * @return external_single_structure
 296       */
 297      private static function get_user_attempt_returns(): external_single_structure {
 298          $result = new external_single_structure([
 299              'id' => new external_value(PARAM_INT, 'ID of the context'),
 300              'h5pactivityid' => new external_value(PARAM_INT, 'ID of the H5P activity'),
 301              'userid' => new external_value(PARAM_INT, 'ID of the user'),
 302              'timecreated' => new external_value(PARAM_INT, 'Attempt creation'),
 303              'timemodified' => new external_value(PARAM_INT, 'Attempt modified'),
 304              'attempt' => new external_value(PARAM_INT, 'Attempt number'),
 305              'rawscore' => new external_value(PARAM_INT, 'Attempt score value'),
 306              'maxscore' => new external_value(PARAM_INT, 'Attempt max score'),
 307              'duration' => new external_value(PARAM_INT, 'Attempt duration in seconds'),
 308              'completion' => new external_value(PARAM_INT, 'Attempt completion', VALUE_OPTIONAL),
 309              'success' => new external_value(PARAM_INT, 'Attempt success', VALUE_OPTIONAL),
 310              'scaled' => new external_value(PARAM_FLOAT, 'Attempt scaled'),
 311          ]);
 312          return $result;
 313      }
 314  }