moodle_local_treestudyplan/classes/local/ungradedscanners/assign_scanner.php

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<?php
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// This file is part of the Studyplan plugin for Moodle
//
// 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 <https://www.gnu.org/licenses/>.
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/**
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* Scan submissions in assign activities
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* @package local_treestudyplan
* @copyright 2023 P.M. Kuipers
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace local_treestudyplan\local\ungradedscanners;
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/**
* Activity scanner for assignment activity
*/
class assign_scanner extends scanner_base {
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/**
* Retrieve the ungraded submissions in this activity
*/
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protected function get_ungraded_submissions() {
global $DB;
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$sql = "SELECT DISTINCT asgn_sub.userid
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FROM {assign_submission} asgn_sub
JOIN {assign} a ON a.id = asgn_sub.assignment
LEFT JOIN {assign_grades} ag ON ag.assignment = asgn_sub.assignment AND ag.userid = asgn_sub.userid
AND asgn_sub.attemptnumber = ag.attemptnumber
WHERE a.id = :iteminstance
AND asgn_sub.status = 'submitted'
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AND asgn_sub.userid > 0
AND a.grade <> 0 AND (ag.id IS NULL OR asgn_sub.timemodified >= ag.timemodified)
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";
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return $DB->get_fieldset_sql($sql, ['iteminstance' => $this->gi->iteminstance]);
}
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/**
* Get the users with graded results
*/
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protected function get_graded_users() {
global $DB;
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$sql = "SELECT DISTINCT g.userid
FROM {grade_grades} g
LEFT JOIN {grade_items} gi on g.itemid = gi.id
WHERE gi.itemmodule = 'assign' AND gi.iteminstance = :iteminstance
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AND g.finalgrade IS NOT NULL"; // MAy turn out to be needed, dunno.
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return $DB->get_fieldset_sql($sql, ['iteminstance' => $this->gi->iteminstance]);
}
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/**
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* Count the number of students wit ungraded submissions in this activity
* @param array $courseuserids
* @return int Number of students with ungraded submissions
*/
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public function count_ungraded($courseuserids = []) {
$ungraded = $this->get_ungraded_submissions();
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if (count($courseuserids) > 0) {
$ungraded = array_intersect($ungraded, $courseuserids);
}
return count($ungraded);
}
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/**
* Count the number of students wit (all) graded submissions in this activity
* @param array $courseuserids
* @return int Number of students with graded submission
*/
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public function count_graded($courseuserids = []) {
$ungraded = $this->get_ungraded_submissions();
$graded = $this->get_graded_users();
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if (count($courseuserids) > 0) {
$ungraded = array_intersect($ungraded, $courseuserids);
$graded = array_intersect($graded, $courseuserids);
}
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// Determine how many id's have a grade, but also an ungraded submission.
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$dual = array_intersect($ungraded, $graded);
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// Subtract those from the graded count.
return count($graded) - count($dual);
}
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/**
* Check if specified user has ungraded submission in this activity
* @param mixed $userid User id of user to check
* @return bool If specified user has ungraded submissions in this activity
*/
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public function has_ungraded_submission($userid) {
$ungraded = $this->get_ungraded_submissions();
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return in_array($userid, $ungraded);
}
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}