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<?php
/**
* @author Nils Gehrke <nils.gehrke@uni-goettingen.de>
*/
class Feedback
{
/**
* Returns the html code for feedback elements for a given range, if the module is activated within a course
*
* @return string
*/
public static function getHTML(string $range_id, string $range_type)
{
if (!$range_id) {
return null;
}
$course_id = null;
if (is_subclass_of($range_type, \FeedbackRange::class)) {
$range_object = $range_type::find($range_id);
if ($range_object) {
$course_id = $range_object->getRangeCourseId();
}
}
if ($course_id && Feedback::isActivated($course_id) && Feedback::hasRangeAccess($range_id, $range_type)) {
return '<div class="feedback-elements" for="' . $range_id . '" type="' . $range_type . '" context="' . $course_id . '"></div>';
} else {
return null;
}
}
/**
* Returns activation status of the feedback module in currently active course
*
* @param string $course_id optional; use this course_id instead of the current context
*
* @return boolean
*/
public static function isActivated(string $course_id = null): bool
{
$course_id = $course_id ?? Context::getId();
$plugin_manager = PluginManager::getInstance();
$feedback_module = $plugin_manager->getPluginInfo('FeedbackModule');
return $plugin_manager->isPluginActivated($feedback_module['id'], $course_id) ?? false;
}
/**
* Returns admin permission of current user within given course
*
* @param string $course_id the course
* @param string $user_id optional; use this ID instead of $GLOBALS['user']->id
*
* @return boolean
*
* @SuppressWarnings(PHPMD.Superglobals)
*/
public static function hasAdminPerm($course_id, string $user_id = null): bool
{
$user_id = $user_id ?? $GLOBALS['user']->id;
$admin_perm_level = CourseConfig::get($course_id)->FEEDBACK_ADMIN_PERM;
$admin_perm = $GLOBALS['perm']->have_studip_perm($admin_perm_level, $course_id, $user_id);
return $admin_perm;
}
/**
* Returns create permission of current user within given course
*
* @param string $course_id the course
* @param string $user_id optional; use this ID instead of $GLOBALS['user']->id
*
* @return boolean
*
* @SuppressWarnings(PHPMD.Superglobals)
*/
public static function hasCreatePerm($course_id, string $user_id = null): bool
{
$user_id = $user_id ?? $GLOBALS['user']->id;
$create_perm_level = CourseConfig::get($course_id)->FEEDBACK_CREATE_PERM;
$create_perm = $GLOBALS['perm']->have_studip_perm($create_perm_level, $course_id, $user_id);
return $create_perm;
}
/**
* Returns range access permission of current user for given range
*
* @param string $range_id
* @param string $range_type
* @param string $user_id optional; use this ID instead of $GLOBALS['user']->id
*
* @return boolean
*/
public static function hasRangeAccess($range_id, $range_type, string $user_id = null): bool
{
$user_id = $user_id ?? $GLOBALS['user']->id;
$range = $range_type::find($range_id);
return $range->isRangeAccessible($user_id);
}
}
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