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Long Term Support Release
<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * Web service functions relating to scale grades and grading. * * @package core_grades * @copyright 2019 Andrew Nicols <andrew@nicols.co.uk> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ declare(strict_types = 1); namespace core_grades\grades\grader\gradingpanel\scale\external; use coding_exception; use context; use core_grades\component_gradeitem as gradeitem; use core_grades\component_gradeitems; use core_user; use external_api; use external_function_parameters; use external_multiple_structure; use external_single_structure; use external_value; use external_warnings; use moodle_exception; use required_capability_exception; use stdClass; /** * External grading panel scale API * * @package core_grades * @copyright 2019 Andrew Nicols <andrew@nicols.co.uk> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class fetch extends external_api { /** * Describes the parameters for fetching the grading panel for a simple grade. * * @return external_function_parameters * @since Moodle 3.8 */ public static function execute_parameters(): external_function_parameters { return new external_function_parameters ([ 'component' => new external_value( PARAM_ALPHANUMEXT, 'The name of the component', VALUE_REQUIRED ), 'contextid' => new external_value( PARAM_INT, 'The ID of the context being graded', VALUE_REQUIRED ), 'itemname' => new external_value( PARAM_ALPHANUM, 'The grade item itemname being graded', VALUE_REQUIRED ), 'gradeduserid' => new external_value( PARAM_INT, 'The ID of the user show', VALUE_REQUIRED ), ]); } /** * Fetch the data required to build a grading panel for a simple grade. * * @param string $component * @param int $contextid * @param string $itemname * @param int $gradeduserid * @return array * @throws \dml_exception * @throws \invalid_parameter_exception * @throws \restricted_context_exception * @throws coding_exception * @throws moodle_exception * @since Moodle 3.8 */ public static function execute(string $component, int $contextid, string $itemname, int $gradeduserid): array { global $USER, $CFG; require_once("{$CFG->libdir}/gradelib.php"); [ 'component' => $component, 'contextid' => $contextid, 'itemname' => $itemname, 'gradeduserid' => $gradeduserid, ] = self::validate_parameters(self::execute_parameters(), [ 'component' => $component, 'contextid' => $contextid, 'itemname' => $itemname, 'gradeduserid' => $gradeduserid, ]); // Validate the context. $context = context::instance_by_id($contextid); self::validate_context($context); // Validate that the supplied itemname is a gradable item. if (!component_gradeitems::is_valid_itemname($component, $itemname)) { throw new coding_exception("The '{$itemname}' item is not valid for the '{$component}' component"); } // Fetch the gradeitem instance. $gradeitem = gradeitem::instance($component, $context, $itemname); if (!$gradeitem->is_using_scale()) { throw new moodle_exception("The {$itemname} item in {$component}/{$contextid} is not configured for grading with scales"); } $gradeduser = \core_user::get_user($gradeduserid, '*', MUST_EXIST); // One can access its own grades. Others just if they're graders. if ($gradeduserid != $USER->id) { $gradeitem->require_user_can_grade($gradeduser, $USER); } // Set up some items we need to return on other interfaces. $gradegrade = \grade_grade::fetch(['itemid' => $gradeitem->get_grade_item()->id, 'userid' => $gradeduser->id]); $gradername = $gradegrade ? fullname(\core_user::get_user($gradegrade->usermodified)) : null; $maxgrade = (int) $gradeitem->get_grade_item()->grademax; return self::get_fetch_data($gradeitem, $gradeduser, $maxgrade, $gradername); } /** * Get the data to be fetched. * * @param gradeitem $gradeitem * @param stdClass $gradeduser * @param int $maxgrade * @param string|null $gradername * @return array */ public static function get_fetch_data(gradeitem $gradeitem, stdClass $gradeduser, int $maxgrade, ?string $gradername): array { global $USER; $hasgrade = $gradeitem->user_has_grade($gradeduser);< $grade = $gradeitem->get_grade_for_user($gradeduser, $USER);> $grade = $gradeitem->get_formatted_grade_for_user($gradeduser, $USER);$currentgrade = (int) unformat_float($grade->grade); $menu = $gradeitem->get_grade_menu(); $values = array_map(function($description, $value) use ($currentgrade) { return [ 'value' => $value, 'title' => $description, 'selected' => ($value == $currentgrade), ]; }, $menu, array_keys($menu)); return [ 'templatename' => 'core_grades/grades/grader/gradingpanel/scale', 'hasgrade' => $hasgrade, 'grade' => [ 'options' => $values,< 'usergrade' => $grade->grade,> 'usergrade' => $grade->usergrade,'maxgrade' => $maxgrade, 'gradedby' => $gradername, 'timecreated' => $grade->timecreated, 'timemodified' => $grade->timemodified, ], 'warnings' => [], ]; } /** * Describes the data returned from the external function. * * @return external_single_structure * @since Moodle 3.8 */ public static function execute_returns(): external_single_structure { return new external_single_structure([ 'templatename' => new external_value(PARAM_SAFEPATH, 'The template to use when rendering this data'), 'hasgrade' => new external_value(PARAM_BOOL, 'Does the user have a grade?'), 'grade' => new external_single_structure([ 'options' => new external_multiple_structure( new external_single_structure([ 'value' => new external_value(PARAM_FLOAT, 'The grade value'), 'title' => new external_value(PARAM_RAW, 'The description fo the option'), 'selected' => new external_value(PARAM_BOOL, 'Whether this item is currently selected'), ]), 'The description of the grade option' ), 'usergrade' => new external_value(PARAM_RAW, 'Current user grade'), 'maxgrade' => new external_value(PARAM_RAW, 'Max possible grade'), 'gradedby' => new external_value(PARAM_RAW, 'The assumed grader of this grading instance'), 'timecreated' => new external_value(PARAM_INT, 'The time that the grade was created'), 'timemodified' => new external_value(PARAM_INT, 'The time that the grade was last updated'), ]), 'warnings' => new external_warnings(), ]); } }