/**
* Gets the users for the course who are not in any group of a grouping.
* @param int $courseid The id of the course
* @param int $groupingid The id of the grouping
* @param int $groupid Excludes members of a particular group
* @return array An array of the userids of the users not in any group of
* the grouping or false if an error occurred.
*/
function groups_get_users_not_in_any_group_in_grouping($courseid, $groupingid, $groupid = false)
{
$users = get_course_users($courseid);
$userids = groups_users_to_userids($users);
$nongroupmembers = array();
if (!$userids) {
return $nongroupmembers;
}
foreach ($userids as $userid) {
if (!groups_is_member_of_some_group_in_grouping($userid, $groupingid)) {
// If a group has been specified don't include members of that group
if ($groupid and !groups_is_member($userid, $groupid)) {
array_push($nongroupmembers, $userid);
} else {
///array_push($nongroupmembers, $userid);
}
}
}
return $nongroupmembers;
}
/**
* Indicates if a specified user has a particular type of permission for a
* particular group for this module instance.
* @uses $USER
* @param int $cmid The id of the module instance. This is necessary because the
* same group can be used in different module instances with different
* permission setups.
* @param int $groupid The id of the group
* @param int $permissiontype The permission type - see note on permission types
* above
* @userid int $userid The id of the user, defaults to the current user
* @return boolean True if the user has the specified permission type, false
* otherwise or if an error occurred.
*/
function groups_m_has_permission($cm, $groupid, $permissiontype, $userid = null)
{
if (!$userid) {
global $USER;
$userid = $USER->id;
}
$groupingid = groups_get_grouping_for_coursemodule($cm);
if (!$groupingid || !is_object($cm) || !isset($cm->course)) {
return false;
}
$courseid = $cm->course;
$isstudent = isstudent($courseid, $userid);
$isteacher = isteacher($courseid, $userid);
$groupmember = groups_is_member($groupid, $userid);
$memberofsomegroup = groups_is_member_of_some_group_in_grouping($userid, $groupingid);
$groupingsettings = groups_get_grouping_settings($groupingid);
$viewowngroup = $groupingsettings->viewowngroup;
$viewallgroupsmembers = $groupingsettings->viewallgroupmembers;
$viewallgroupsactivities = $groupingsettings->viewallgroupsactivities;
$teachersgroupsmark = $groupingsettings->teachersgroupsmark;
$teachersgroupsview = $groupingsettings->teachersgroupsview;
$teachersgroupmark = $groupingsettings->teachersgroupmark;
$teachersgroupview = $groupingsettings->teachersgroupview;
$teachersoverride = $groupingsettings->teachersoverride;
$permission = false;
switch ($permissiontype) {
case 'view':
if ($isstudent and $groupmember or $isteacher and $groupmember or $isstudent and $viewallgroupsactivities or $isteacher and !$teachersgroupview or $isteacher and !$memberofsomegroup and $teachersoverride) {
$permission = true;
}
break;
case 'studentcontribute':
if ($isstudent and $groupmember or $isteacher and $groupmember or $isteacher and !$memberofsomegroup and $teachersoverride) {
$permission = true;
}
break;
case 'teachermark':
if ($isteacher and $groupmember or $isteacher and !$teachersgroupmark or $isteacher and !$memberofsomegroup and $teachersoverride) {
$permission = true;
}
break;
case 'viewmembers':
if ($isstudent and $groupmember and $viewowngroup or $isstudent and $viewallgroupsmembers or $isteacher and $groupmember or $isteacher and !$teachersgroupview or $isteacher and !$memberofsomegroup and $teachersoverride or $isteacheredit) {
$permission = true;
}
break;
}
return $permission;
}
