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<?php
/**
* vips/admin.php - course administration controller
*
* This program 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 2 of
* the License, or (at your option) any later version.
*
* @author Elmar Ludwig
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
*/
class Vips_AdminController extends AuthenticatedController
{
/**
* Edit or create a block in the course.
*/
public function edit_block_action()
{
Navigation::activateItem('/course/vips/sheets');
PageLayout::setHelpKeyword('Basis.Vips');
$block_id = Request::int('block_id');
if ($block_id) {
$block = VipsBlock::find($block_id);
} else {
$block = new VipsBlock();
$block->range_id = Context::getId();
}
VipsModule::requireStatus('tutor', $block->range_id);
$this->block = $block;
$this->groups = Statusgruppen::findBySeminar_id($block->range_id);
}
/**
* Store changes to a block.
*/
public function store_block_action()
{
CSRFProtection::verifyUnsafeRequest();
$block_id = Request::int('block_id');
$group_id = Request::option('group_id');
if ($block_id) {
$block = VipsBlock::find($block_id);
} else {
$block = new VipsBlock();
$block->range_id = Context::getId();
}
VipsModule::requireStatus('tutor', $block->range_id);
$block->name = Request::get('block_name');
$block->group_id = $group_id ?: null;
$block->visible = $group_id !== '';
if (!Request::int('block_grouped')) {
$block->weight = null;
} else if ($block->weight === null) {
$block->weight = 0;
if ($block_id) {
// sum up individual assignment weights for total block weight
foreach (VipsAssignment::findByBlock_id($block_id) as $assignment) {
$block->weight += $assignment->weight;
}
}
}
$block->store();
PageLayout::postSuccess(sprintf(_('Der Block „%s“ wurde gespeichert.'), htmlReady($block->name)));
$this->redirect($this->url_for('vips/sheets', ['group' => 1]));
}
/**
* Delete a block from the course.
*/
public function delete_block_action()
{
CSRFProtection::verifyUnsafeRequest();
$block_id = Request::int('block_id');
$block = VipsBlock::find($block_id);
$block_name = $block->name;
VipsModule::requireStatus('tutor', $block->range_id);
if ($block->delete()) {
PageLayout::postSuccess(sprintf(_('Der Block „%s“ wurde gelöscht.'), htmlReady($block_name)));
}
$this->redirect('vips/sheets');
}
/**
* Stores the weights of blocks, sheets and exams
*/
public function store_weight_action()
{
CSRFProtection::verifyUnsafeRequest();
$assignment_weight = Request::floatArray('assignment_weight');
$block_weight = Request::floatArray('block_weight');
foreach ($assignment_weight as $assignment_id => $weight) {
$assignment = VipsAssignment::find($assignment_id);
VipsModule::requireEditPermission($assignment);
$assignment->weight = $weight;
$assignment->store();
}
foreach ($block_weight as $block_id => $weight) {
$block = VipsBlock::find($block_id);
VipsModule::requireStatus('tutor', $block->range_id);
$block->weight = $weight;
$block->store();
}
$this->redirect('vips/solutions');
}
/**
* Edit the grade distribution settings.
*/
public function edit_grades_action()
{
Navigation::activateItem('/course/vips/solutions');
PageLayout::setHelpKeyword('Basis.VipsErgebnisse');
$course_id = Context::getId();
VipsModule::requireStatus('tutor', $course_id);
$grades = ['1,0', '1,3', '1,7', '2,0', '2,3', '2,7', '3,0', '3,3', '3,7', '4,0'];
$percentages = array_fill(0, count($grades), '');
$comments = array_fill(0, count($grades), '');
$settings = CourseConfig::get($course_id);
foreach ($settings->VIPS_COURSE_GRADES as $value) {
$index = array_search($value['grade'], $grades);
if ($index !== false) {
$percentages[$index] = $value['percent'];
$comments[$index] = $value['comment'];
}
}
$this->grades = $grades;
$this->grade_settings = $settings->VIPS_COURSE_GRADES;
$this->percentages = $percentages;
$this->comments = $comments;
}
/**
* Stores the distribution of grades
*/
public function store_grades_action()
{
CSRFProtection::verifyUnsafeRequest();
$course_id = Context::getId();
VipsModule::requireStatus('tutor', $course_id);
$grades = ['1,0', '1,3', '1,7', '2,0', '2,3', '2,7', '3,0', '3,3', '3,7', '4,0'];
$percentages = Request::floatArray('percentage');
$comments = Request::getArray('comment');
$grade_settings = [];
$percent_last = 101;
$error = false;
foreach ($percentages as $i => $percent) {
if ($percent) {
$grade_settings[] = [
'grade' => $grades[$i],
'percent' => $percent,
'comment' => trim($comments[$i])
];
if ($percent < 0 || $percent > 100) {
PageLayout::postError(_('Die Notenwerte müssen zwischen 0 und 100 liegen!'));
$error = true;
} else if ($percent_last <= $percent) {
PageLayout::postError(sprintf(_('Die Notenwerte müssen monoton absteigen (%s > %s)!'), $percent_last, $percent));
$error = true;
}
$percent_last = $percent;
}
}
if (!$error) {
$settings = CourseConfig::get($course_id);
$settings->store('VIPS_COURSE_GRADES', $grade_settings);
PageLayout::postSuccess(_('Die Notenwerte wurden eingetragen.'));
}
$this->redirect('vips/solutions');
}
}
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