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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   * Web service functions relating to scale grades and grading.
  19   *
  20   * @package    core_grades
  21   * @copyright  2019 Andrew Nicols <andrew@nicols.co.uk>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  declare(strict_types = 1);
  26  
  27  namespace core_grades\grades\grader\gradingpanel\scale\external;
  28  
  29  use coding_exception;
  30  use context;
  31  use core_grades\component_gradeitem as gradeitem;
  32  use core_grades\component_gradeitems;
  33  use core_external\external_api;
  34  use core_external\external_function_parameters;
  35  use core_external\external_single_structure;
  36  use core_external\external_value;
  37  use moodle_exception;
  38  
  39  /**
  40   * External grading panel scale API
  41   *
  42   * @package    core_grades
  43   * @copyright  2019 Andrew Nicols <andrew@nicols.co.uk>
  44   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  45   */
  46  class store extends external_api {
  47  
  48      /**
  49       * Describes the parameters for fetching the grading panel for a simple grade.
  50       *
  51       * @return external_function_parameters
  52       * @since Moodle 3.8
  53       */
  54      public static function execute_parameters(): external_function_parameters {
  55          return new external_function_parameters ([
  56              'component' => new external_value(
  57                  PARAM_ALPHANUMEXT,
  58                  'The name of the component',
  59                  VALUE_REQUIRED
  60              ),
  61              'contextid' => new external_value(
  62                  PARAM_INT,
  63                  'The ID of the context being graded',
  64                  VALUE_REQUIRED
  65              ),
  66              'itemname' => new external_value(
  67                  PARAM_ALPHANUM,
  68                  'The grade item itemname being graded',
  69                  VALUE_REQUIRED
  70              ),
  71              'gradeduserid' => new external_value(
  72                  PARAM_INT,
  73                  'The ID of the user show',
  74                  VALUE_REQUIRED
  75              ),
  76              'notifyuser' => new external_value(
  77                  PARAM_BOOL,
  78                  'Wheteher to notify the user or not',
  79                  VALUE_DEFAULT,
  80                  false
  81              ),
  82              'formdata' => new external_value(
  83                  PARAM_RAW,
  84                  'The serialised form data representing the grade',
  85                  VALUE_REQUIRED
  86              ),
  87          ]);
  88      }
  89  
  90      /**
  91       * Fetch the data required to build a grading panel for a simple grade.
  92       *
  93       * @param string $component
  94       * @param int $contextid
  95       * @param string $itemname
  96       * @param int $gradeduserid
  97       * @param string $formdata
  98       * @param bool $notifyuser
  99       * @return array
 100       * @throws coding_exception
 101       * @throws moodle_exception
 102       * @since Moodle 3.8
 103       */
 104      public static function execute(string $component, int $contextid, string $itemname, int $gradeduserid,
 105              bool $notifyuser, string $formdata): array {
 106          global $USER, $CFG;
 107          require_once("{$CFG->libdir}/gradelib.php");
 108          [
 109              'component' => $component,
 110              'contextid' => $contextid,
 111              'itemname' => $itemname,
 112              'gradeduserid' => $gradeduserid,
 113              'notifyuser' => $notifyuser,
 114              'formdata' => $formdata,
 115          ] = self::validate_parameters(self::execute_parameters(), [
 116              'component' => $component,
 117              'contextid' => $contextid,
 118              'itemname' => $itemname,
 119              'gradeduserid' => $gradeduserid,
 120              'notifyuser' => $notifyuser,
 121              'formdata' => $formdata,
 122          ]);
 123  
 124          // Validate the context.
 125          $context = context::instance_by_id($contextid);
 126          self::validate_context($context);
 127  
 128          // Validate that the supplied itemname is a gradable item.
 129          if (!component_gradeitems::is_valid_itemname($component, $itemname)) {
 130              throw new coding_exception("The '{$itemname}' item is not valid for the '{$component}' component");
 131          }
 132  
 133          // Fetch the gradeitem instance.
 134          $gradeitem = gradeitem::instance($component, $context, $itemname);
 135  
 136          // Validate that this gradeitem is actually enabled.
 137          if (!$gradeitem->is_grading_enabled()) {
 138              throw new moodle_exception("Grading is not enabled for {$itemname} in this context");
 139          }
 140  
 141          // Fetch the record for the graded user.
 142          $gradeduser = \core_user::get_user($gradeduserid);
 143  
 144          // Require that this user can save grades.
 145          $gradeitem->require_user_can_grade($gradeduser, $USER);
 146  
 147          if (!$gradeitem->is_using_scale()) {
 148              throw new moodle_exception("The {$itemname} item in {$component}/{$contextid} is not configured for grading with scales");
 149          }
 150  
 151          // Parse the serialised string into an object.
 152          $data = [];
 153          parse_str($formdata, $data);
 154  
 155          // Grade.
 156          $gradeitem->store_grade_from_formdata($gradeduser, $USER, (object) $data);
 157  
 158          // Notify.
 159          if ($notifyuser) {
 160              // Send notification.
 161              $gradeitem->send_student_notification($gradeduser, $USER);
 162          }
 163  
 164          $gradegrade = \grade_grade::fetch(['itemid' => $gradeitem->get_grade_item()->id, 'userid' => $gradeduser->id]);
 165          $gradername = $gradegrade ? fullname(\core_user::get_user($gradegrade->usermodified)) : null;
 166          $maxgrade = (int) $gradeitem->get_grade_item()->grademax;
 167  
 168          return fetch::get_fetch_data($gradeitem, $gradeduser, $maxgrade, $gradername);
 169      }
 170  
 171      /**
 172       * Describes the data returned from the external function.
 173       *
 174       * @return external_single_structure
 175       * @since Moodle 3.8
 176       */
 177      public static function execute_returns(): external_single_structure {
 178          return fetch::execute_returns();
 179      }
 180  }