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<?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/>.
/**
* Edit a calculated grade item
*
* @package core_grades
* @copyright 2007 Petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once '../../../config.php';
require_once $CFG->dirroot.'/grade/lib.php';
require_once $CFG->libdir.'/mathslib.php';
require_once 'calculation_form.php';
$courseid = required_param('courseid', PARAM_INT);
$id = required_param('id', PARAM_INT);
$section = optional_param('section', 'calculation', PARAM_ALPHA);
$idnumbers = optional_param_array('idnumbers', null, PARAM_RAW);
$url = new moodle_url('/grade/edit/tree/calculation.php', array('id'=>$id, 'courseid'=>$courseid));
if ($section !== 'calculation') {
$url->param('section', $section);
}
$PAGE->set_url($url);
if (!$course = $DB->get_record('course', array('id' => $courseid))) {
print_error('invalidcourseid');
}
require_login($course);
$context = context_course::instance($course->id);
require_capability('moodle/grade:manage', $context);
$PAGE->set_pagelayout('admin');
navigation_node::override_active_url(new moodle_url('/grade/edit/tree/index.php',
array('id'=>$course->id)));
// default return url
$gpr = new grade_plugin_return();
$returnurl = $gpr->get_return_url($CFG->wwwroot.'/grade/report/index.php?id='.$course->id);
if (!$grade_item = grade_item::fetch(array('id'=>$id, 'courseid'=>$course->id))) {
print_error('invaliditemid');
}
// activity items and items without grade can not have calculation
if ($grade_item->is_external_item() or ($grade_item->gradetype != GRADE_TYPE_VALUE and $grade_item->gradetype != GRADE_TYPE_SCALE)) {
redirect($returnurl, get_string('errornocalculationallowed', 'grades'));
}
$mform = new edit_calculation_form(null, array('gpr'=>$gpr, 'itemid' => $grade_item->id));
if ($mform->is_cancelled()) {
redirect($returnurl);
}
$calculation = calc_formula::localize($grade_item->calculation);
$calculation = grade_item::denormalize_formula($calculation, $grade_item->courseid);
$mform->set_data(array('courseid'=>$grade_item->courseid, 'calculation'=>$calculation, 'id'=>$grade_item->id, 'itemname'=>$grade_item->itemname));
$errors = array();
if ($data = $mform->get_data()) {
$calculation = calc_formula::unlocalize($data->calculation);
$grade_item->set_calculation($calculation);
redirect($returnurl);
} elseif (!empty($section) AND $section='idnumbers' AND !empty($idnumbers)) { // Handle idnumbers separately (non-mform)
//first validate and store the new idnumbers
foreach ($idnumbers as $giid => $value) {
if ($gi = grade_item::fetch(array('id' => $giid))) {
if ($gi->itemtype == 'mod') {
$cm = get_coursemodule_from_instance($gi->itemmodule, $gi->iteminstance, $gi->courseid);
} else {
$cm = null;
}
if (!grade_verify_idnumber($value, $COURSE->id, $gi, $cm)) {
$errors[$giid] = get_string('idnumbertaken');
continue;
}
if (empty($gi->idnumber) and !$gi->add_idnumber($idnumbers[$gi->id])) {
$errors[$giid] = get_string('error');
continue;
}
} else {
$errors[$giid] = 'Could not fetch the grade_item with id=' . $giid;
}
}
}
$gtree = new grade_tree($course->id, false, false);
$strgrades = get_string('grades');
$strgraderreport = get_string('graderreport', 'grades');
$strcalculationedit = get_string('editcalculation', 'grades');
$PAGE->navbar->add($strcalculationedit);
print_grade_page_head($courseid, 'settings', null, $strcalculationedit, false, false, false);
$mform->display();
// Now show the gradetree with the idnumbers add/edit form
echo '
<form class="mform" id="mform2" method="post" action="' . $CFG->wwwroot . '/grade/edit/tree/calculation.php?courseid='.$courseid.'&id='.$id.'">
<div style="display: none;">
<input type="hidden" value="'.$id.'" name="id"/>
<input type="hidden" value="'.$courseid.'" name="courseid"/>
<input type="hidden" value="'.$gpr->type.'" name="gpr_type"/>
<input type="hidden" value="'.$gpr->plugin.'" name="gpr_plugin"/>
<input type="hidden" value="'.$gpr->courseid.'" name="gpr_courseid"/>
<input type="hidden" value="'.sesskey().'" name="sesskey"/>
<input type="hidden" value="idnumbers" name="section"/>
</div>
<fieldset id="idnumbers" class="clearfix">
<legend class="ftoggler">'.get_string('idnumbers', 'grades').'</legend>
<div class="fcontainer clearfix">
<ul>
' . get_grade_tree($gtree, $gtree->top_element, $id, $errors) . '
</ul>
</div>
</fieldset>
<div class="fitem" style="text-align: center;">
<input id="id_addidnumbers" type="submit" class="btn btn-secondary" value="' . get_string('addidnumbers', 'grades') . '" name="addidnumbers" />
</div>
</form>';
echo $OUTPUT->footer();
die();
/**
* Simplified version of the print_grade_tree() recursive function found in grade/edit/tree/index.php
* Only prints a tree with a basic icon for each element, and an edit field for
* items without an idnumber.
* @param object $gtree
* @param object $element
* @param int $current_itemid The itemid of this page: should be excluded from the tree
* @param array $errors An array of idnumbers => error
* @return string
*/
function get_grade_tree(&$gtree, $element, $current_itemid=null, $errors=null) {
global $CFG;
$object = $element['object'];
$eid = $element['eid'];
$type = $element['type'];
$grade_item = $object->get_grade_item();
$name = $object->get_name();
$return_string = '';
//TODO: improve outcome visualisation
if ($type == 'item' and !empty($object->outcomeid)) {
$name = $name.' ('.get_string('outcome', 'grades').')';
}
$idnumber = $object->get_idnumber();
// Don't show idnumber or input field for current item if given to function. Highlight the item instead.
if ($type != 'category') {
if (is_null($current_itemid) OR $grade_item->id != $current_itemid) {
if ($idnumber) {
$name .= ": [[$idnumber]]";
} else {
$closingdiv = '';
if (!empty($errors[$grade_item->id])) {
$name .= '<div class="error"><span class="error">' . $errors[$grade_item->id].'</span><br />'."\n";
$closingdiv = "</div>\n";
}
$name .= '<label class="accesshide" for="id_idnumber_' . $grade_item->id . '">' . get_string('gradeitems', 'grades') .'</label>';
$name .= '<input class="idnumber" id="id_idnumber_'.$grade_item->id.'" type="text" name="idnumbers['.$grade_item->id.']" />' . "\n";
$name .= $closingdiv;
}
} else {
$name = "<strong>$name</strong>";
}
}
$icon = $gtree->get_element_icon($element, true);
$last = '';
$catcourseitem = ($element['type'] == 'courseitem' or $element['type'] == 'categoryitem');
if ($type != 'category') {
$return_string .= '<li class="'.$type.'">'.$icon.$name.'</li>' . "\n";
} else {
$return_string .= '<li class="'.$type.'">'.$icon.$name . "\n";
$return_string .= '<ul class="catlevel'.$element['depth'].'">'."\n";
$last = null;
foreach($element['children'] as $child_el) {
$return_string .= get_grade_tree($gtree, $child_el, $current_itemid, $errors);
}
if ($last) {
$return_string .= get_grade_tree($gtree, $last, $current_itemid, $errors);
}
$return_string .= '</ul></li>'."\n";
}
return $return_string;
}