mirror of
https://github.com/moodle/moodle.git
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432 lines
20 KiB
PHP
432 lines
20 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* External assign API
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*
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* @package mod_assign
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* @since Moodle 2.4
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* @copyright 2012 Paul Charsley
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die;
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require_once("$CFG->libdir/externallib.php");
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/**
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* Assign functions
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*/
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class mod_assign_external extends external_api {
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/**
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* Describes the parameters for get_grades
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* @return external_external_function_parameters
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* @since Moodle 2.4
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*/
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public static function get_grades_parameters() {
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return new external_function_parameters(
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array(
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'assignmentids' => new external_multiple_structure(
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new external_value(PARAM_INT, 'assignment id'),
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'1 or more assignment ids',
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VALUE_REQUIRED),
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'since' => new external_value(PARAM_INT,
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'timestamp, only return records where timemodified >= since',
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VALUE_DEFAULT, 0)
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)
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);
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}
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/**
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* Returns grade information from assign_grades for the requested assignment ids
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* @param array of ints $assignmentids
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* @param int $since only return records with timemodified >= since
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* @return array of grade records for each requested assignment
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* @since Moodle 2.4
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*/
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public static function get_grades($assignmentids, $since = 0) {
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global $DB;
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$params = self::validate_parameters(self::get_grades_parameters(),
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array('assignmentids' => $assignmentids,
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'since' => $since));
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$assignments = array();
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$warnings = array();
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$requestedassignmentids = $params['assignmentids'];
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// Check the user is allowed to get the grades for the assignments requested.
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$placeholders = array();
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list($sqlassignmentids, $placeholders) = $DB->get_in_or_equal($requestedassignmentids, SQL_PARAMS_NAMED);
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$sql = "SELECT cm.id, cm.instance FROM {course_modules} cm JOIN {modules} md ON md.id = cm.module ".
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"WHERE md.name = :modname AND cm.instance ".$sqlassignmentids;
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$placeholders['modname'] = 'assign';
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$cms = $DB->get_records_sql($sql, $placeholders);
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foreach ($cms as $cm) {
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try {
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$context = context_module::instance($cm->id);
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self::validate_context($context);
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require_capability('mod/assign:grade', $context);
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} catch (Exception $e) {
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$requestedassignmentids = array_diff($requestedassignmentids, array($cm->instance));
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$warning = array();
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$warning['item'] = 'assignment';
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$warning['itemid'] = $cm->instance;
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$warning['warningcode'] = '1';
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$warning['message'] = 'No access rights in module context';
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$warnings[] = $warning;
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}
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}
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// Create the query and populate an array of grade records from the recordset results.
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if (count ($requestedassignmentids) > 0) {
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$placeholders = array();
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list($inorequalsql, $placeholders) = $DB->get_in_or_equal($requestedassignmentids, SQL_PARAMS_NAMED);
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$sql = "SELECT ag.id,ag.assignment,ag.userid,ag.timecreated,ag.timemodified,".
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"ag.grader,ag.grade,ag.locked,ag.mailed ".
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"FROM {assign_grades} ag ".
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"WHERE ag.assignment ".$inorequalsql.
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" AND ag.timemodified >= :since".
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" ORDER BY ag.assignment, ag.id";
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$placeholders['since'] = $params['since'];
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$rs = $DB->get_recordset_sql($sql, $placeholders);
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$currentassignmentid = null;
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$assignment = null;
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foreach ($rs as $rd) {
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$grade = array();
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$grade['id'] = $rd->id;
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$grade['userid'] = $rd->userid;
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$grade['timecreated'] = $rd->timecreated;
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$grade['timemodified'] = $rd->timemodified;
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$grade['grader'] = $rd->grader;
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$grade['grade'] = (string)$rd->grade;
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$grade['locked'] = $rd->locked;
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$grade['mailed'] = $rd->mailed;
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if (is_null($currentassignmentid) || ($rd->assignment != $currentassignmentid )) {
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if (!is_null($assignment)) {
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$assignments[] = $assignment;
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}
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$assignment = array();
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$assignment['assignmentid'] = $rd->assignment;
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$assignment['grades'] = array();
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$requestedassignmentids = array_diff($requestedassignmentids, array($rd->assignment));
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}
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$assignment['grades'][] = $grade;
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$currentassignmentid = $rd->assignment;
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}
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if (!is_null($assignment)) {
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$assignments[] = $assignment;
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}
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$rs->close();
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}
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foreach ($requestedassignmentids as $assignmentid) {
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$warning = array();
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$warning['item'] = 'assignment';
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$warning['itemid'] = $assignmentid;
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$warning['warningcode'] = '3';
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$warning['message'] = 'No grades found';
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$warnings[] = $warning;
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}
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$result = array();
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$result['assignments'] = $assignments;
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$result['warnings'] = $warnings;
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return $result;
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}
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/**
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* Creates an assign_grades external_single_structure
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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private static function assign_grades() {
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return new external_single_structure(
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array (
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'assignmentid' => new external_value(PARAM_INT, 'assignment id'),
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'grades' => new external_multiple_structure(new external_single_structure(
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array(
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'id' => new external_value(PARAM_INT, 'grade id'),
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'userid' => new external_value(PARAM_INT, 'student id'),
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'timecreated' => new external_value(PARAM_INT, 'grade creation time'),
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'timemodified' => new external_value(PARAM_INT, 'grade last modified time'),
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'grader' => new external_value(PARAM_INT, 'grader'),
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'grade' => new external_value(PARAM_TEXT, 'grade'),
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'locked' => new external_value(PARAM_BOOL, 'locked'),
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'mailed' => new external_value(PARAM_BOOL, 'mailed')
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)
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)
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)
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)
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);
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}
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/**
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* Describes the get_grades return value
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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public static function get_grades_returns() {
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return new external_single_structure(
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array(
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'assignments' => new external_multiple_structure(self::assign_grades(), 'list of assignment grade information'),
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'warnings' => new external_warnings()
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)
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);
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}
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/**
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* Returns description of method parameters
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*
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* @return external_function_parameters
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* @since Moodle 2.4
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*/
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public static function get_assignments_parameters() {
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return new external_function_parameters(
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array(
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'courseids' => new external_multiple_structure(
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new external_value(PARAM_INT, 'course id'),
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'0 or more course ids',
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VALUE_DEFAULT, array()
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),
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'capabilities' => new external_multiple_structure(
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new external_value(PARAM_CAPABILITY, 'capability'),
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'list of capabilities used to filter courses',
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VALUE_DEFAULT, array()
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)
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)
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);
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}
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/**
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* Returns an array of courses the user is enrolled in, and for each course all of the assignments that the user can
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* view within that course.
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*
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* @param array $courseids An optional array of course ids. If provided only assignments within the given course
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* will be returned. If the user is not enrolled in a given course a warning will be generated and returned.
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* @param array $capabilities An array of additional capability checks you wish to be made on the course context.
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* @return An array of courses and warnings.
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* @since Moodle 2.4
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*/
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public static function get_assignments($courseids = array(), $capabilities = array()) {
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global $USER, $DB;
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$params = self::validate_parameters(
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self::get_assignments_parameters(),
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array('courseids' => $courseids, 'capabilities' => $capabilities)
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);
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$warnings = array();
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$fields = 'sortorder,shortname,fullname,timemodified';
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$courses = enrol_get_users_courses($USER->id, true, $fields);
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// Used to test for ids that have been requested but can't be returned.
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if (count($params['courseids']) > 0) {
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foreach ($params['courseids'] as $courseid) {
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if (!in_array($courseid, array_keys($courses))) {
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unset($courses[$courseid]);
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$warnings[] = array(
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'item' => 'course',
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'itemid' => $courseid,
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'warningcode' => '2',
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'message' => 'User is not enrolled or does not have requested capability'
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);
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}
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}
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}
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foreach ($courses as $id => $course) {
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if (count($params['courseids']) > 0 && !in_array($id, $params['courseids'])) {
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unset($courses[$id]);
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}
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$context = context_course::instance($id);
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try {
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self::validate_context($context);
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} catch (Exception $e) {
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unset($courses[$id]);
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$warnings[] = array(
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'item' => 'course',
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'itemid' => $id,
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'warningcode' => '1',
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'message' => 'No access rights in course context '.$e->getMessage().$e->getTraceAsString()
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);
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continue;
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}
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if (count($params['capabilities']) > 0 && !has_all_capabilities($params['capabilities'], $context)) {
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unset($courses[$id]);
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}
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}
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$extrafields='m.id as assignmentid, m.course, m.nosubmissions, m.submissiondrafts, m.sendnotifications, '.
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'm.sendlatenotifications, m.duedate, m.allowsubmissionsfromdate, m.grade, m.timemodified, '.
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'm.completionsubmit, m.cutoffdate, m.teamsubmission, m.requireallteammemberssubmit, '.
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'm.teamsubmissiongroupingid, m.blindmarking, m.revealidentities, m.requiresubmissionstatement';
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$coursearray = array();
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foreach ($courses as $id => $course) {
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$assignmentarray = array();
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// Get a list of assignments for the course.
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if ($modules = get_coursemodules_in_course('assign', $courses[$id]->id, $extrafields)) {
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foreach ($modules as $module) {
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$context = context_module::instance($module->id);
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try {
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self::validate_context($context);
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require_capability('mod/assign:view', $context);
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} catch (Exception $e) {
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$warnings[] = array(
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'item' => 'module',
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'itemid' => $module->id,
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'warningcode' => '1',
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'message' => 'No access rights in module context'
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);
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continue;
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}
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$configrecords = $DB->get_recordset('assign_plugin_config', array('assignment' => $module->assignmentid));
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$configarray = array();
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foreach ($configrecords as $configrecord) {
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$configarray[] = array(
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'id' => $configrecord->id,
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'assignment' => $configrecord->assignment,
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'plugin' => $configrecord->plugin,
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'subtype' => $configrecord->subtype,
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'name' => $configrecord->name,
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'value' => $configrecord->value
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);
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}
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$configrecords->close();
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$assignmentarray[]= array(
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'id' => $module->assignmentid,
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'cmid' => $module->id,
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'course' => $module->course,
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'name' => $module->name,
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'nosubmissions' => $module->nosubmissions,
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'submissiondrafts' => $module->submissiondrafts,
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'sendnotifications' => $module->sendnotifications,
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'sendlatenotifications' => $module->sendlatenotifications,
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'duedate' => $module->duedate,
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'allowsubmissionsfromdate' => $module->allowsubmissionsfromdate,
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'grade' => $module->grade,
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'timemodified' => $module->timemodified,
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'completionsubmit' => $module->completionsubmit,
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'cutoffdate' => $module->cutoffdate,
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'teamsubmission' => $module->teamsubmission,
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'requireallteammemberssubmit' => $module->requireallteammemberssubmit,
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'teamsubmissiongroupingid' => $module->teamsubmissiongroupingid,
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'blindmarking' => $module->blindmarking,
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'revealidentities' => $module->revealidentities,
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'requiresubmissionstatement' => $module->requiresubmissionstatement,
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'configs' => $configarray
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);
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}
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}
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$coursearray[]= array(
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'id' => $courses[$id]->id,
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'fullname' => $courses[$id]->fullname,
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'shortname' => $courses[$id]->shortname,
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'timemodified' => $courses[$id]->timemodified,
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'assignments' => $assignmentarray
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);
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}
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$result = array(
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'courses' => $coursearray,
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'warnings' => $warnings
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);
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return $result;
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}
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/**
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* Creates an assignment external_single_structure
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*
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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private static function get_assignments_assignment_structure() {
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return new external_single_structure(
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array(
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'id' => new external_value(PARAM_INT, 'assignment id'),
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'course' => new external_value(PARAM_INT, 'course id'),
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'name' => new external_value(PARAM_TEXT, 'assignment name'),
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'nosubmissions' => new external_value(PARAM_INT, 'no submissions'),
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'submissiondrafts' => new external_value(PARAM_INT, 'submissions drafts'),
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'sendnotifications' => new external_value(PARAM_INT, 'send notifications'),
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'sendlatenotifications' => new external_value(PARAM_INT, 'send notifications'),
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'duedate' => new external_value(PARAM_INT, 'assignment due date'),
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'allowsubmissionsfromdate' => new external_value(PARAM_INT, 'allow submissions from date'),
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'grade' => new external_value(PARAM_INT, 'grade type'),
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'timemodified' => new external_value(PARAM_INT, 'last time assignment was modified'),
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'completionsubmit' => new external_value(PARAM_INT, 'if enabled, set activity as complete following submission'),
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'cutoffdate' => new external_value(PARAM_INT, 'date after which submission is not accepted without an extension'),
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'teamsubmission' => new external_value(PARAM_INT, 'if enabled, students submit as a team'),
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'requireallteammemberssubmit' => new external_value(PARAM_INT, 'if enabled, all team members must submit'),
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'teamsubmissiongroupingid' => new external_value(PARAM_INT, 'the grouping id for the team submission groups'),
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'blindmarking' => new external_value(PARAM_INT, 'if enabled, hide identities until reveal identities actioned'),
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'revealidentities' => new external_value(PARAM_INT, 'show identities for a blind marking assignment'),
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'requiresubmissionstatement' => new external_value(PARAM_INT, 'student must accept submission statement'),
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'configs' => new external_multiple_structure(self::get_assignments_config_structure(), 'configuration settings')
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), 'assignment information object');
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}
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/**
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* Creates an assign_plugin_config external_single_structure
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*
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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private static function get_assignments_config_structure() {
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return new external_single_structure(
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array(
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'id' => new external_value(PARAM_INT, 'assign_plugin_config id'),
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'assignment' => new external_value(PARAM_INT, 'assignment id'),
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'plugin' => new external_value(PARAM_TEXT, 'plugin'),
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'subtype' => new external_value(PARAM_TEXT, 'subtype'),
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'name' => new external_value(PARAM_TEXT, 'name'),
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'value' => new external_value(PARAM_TEXT, 'value')
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), 'assignment configuration object'
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);
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}
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/**
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* Creates a course external_single_structure
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*
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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private static function get_assignments_course_structure() {
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return new external_single_structure(
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array(
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'id' => new external_value(PARAM_INT, 'course id'),
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'fullname' => new external_value(PARAM_TEXT, 'course full name'),
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'shortname' => new external_value(PARAM_TEXT, 'course short name'),
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'timemodified' => new external_value(PARAM_INT, 'last time modified'),
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'assignments' => new external_multiple_structure(self::get_assignments_assignment_structure(), 'assignment info')
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), 'course information object'
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);
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}
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/**
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* Describes the return value for get_assignments
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*
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* @return external_single_structure
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* @since Moodle 2.4
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*/
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public static function get_assignments_returns() {
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return new external_single_structure(
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array(
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'courses' => new external_multiple_structure(self::get_assignments_course_structure(), 'list of courses'),
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'warnings' => new external_warnings()
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)
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);
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}
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}
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