moodle/mod/data/rate.php
2008-04-04 02:54:20 +00:00

101 lines
3.0 KiB
PHP
Executable File

<?php // $Id$
require_once('../../config.php');
require_once('lib.php');
$dataid = required_param('dataid', PARAM_INT); // The forum the rated posts are from
if (!$data = get_record('data', 'id', $dataid)) {
print_error("Incorrect data id");
}
if (!$course = get_record('course', 'id', $data->course)) {
print_error("Course ID was incorrect");
}
if (!$cm = get_coursemodule_from_instance('data', $data->id)) {
print_error("Course Module ID was incorrect");
}
require_login($course, false, $cm);
if (isguestuser()) {
print_error("Guests are not allowed to rate entries.");
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
require_capability('mod/data:rate', $context);
if (!$data->assessed) {
print_error("Rating of items not allowed!");
}
if (!$frmdata = data_submitted() or !confirm_sesskey()) {
print_error("This page was not accessed correctly");
}
$count = 0;
foreach ((array)$frmdata as $recordid => $rating) {
if (!is_numeric($recordid)) {
continue;
}
if (!$record = get_record('data_records', 'id', $recordid)) {
print_error("Record ID is incorrect");
}
if ($data->id != $record->dataid) {
print_error("Incorrect record.");
}
if ($record->userid == $USER->id) {
continue;
}
// input validation ok
$count++;
if ($oldrating = get_record('data_ratings', 'userid', $USER->id, 'recordid', $record->id)) {
if ($rating == -999) {
delete_records('data_ratings', 'userid', $oldrating->userid, 'recordid', $oldrating->recordid);
data_update_grades($data, $record->userid);
} else if ($rating != $oldrating->rating) {
$oldrating->rating = $rating;
if (! update_record('data_ratings', $oldrating)) {
print_error("Could not update an old rating ($record->id = $rating)");
}
data_update_grades($data, $record->userid);
}
} else if ($rating) {
$newrating = new object();
$newrating->userid = $USER->id;
$newrating->recordid = $record->id;
$newrating->rating = $rating;
if (! insert_record('data_ratings', $newrating)) {
print_error("Could not insert a new rating ($record->id = $rating)");
}
data_update_grades($data, $record->userid);
}
}
if ($count == 0) {
print_error("Incorrect submitted ratings data");
}
if (!empty($_SERVER['HTTP_REFERER'])) {
redirect($_SERVER['HTTP_REFERER'], get_string('ratingssaved', 'data'));
} else {
// try to guess where to return
if ($count == 1) {
redirect('view.php?mode=single&amp;rid='.$record->id, get_string('ratingssaved', 'data'));
} else {
redirect('view.php?d='.$data->id, get_string('ratingssaved', 'data'));
}
}
?>