How to check for existence of a permission

R_J

I create a permission $PermissionName in Vanilla 2.0 dynamically and now want to show "you do not have permission" if (in_array($PermissionName, $PermissionArray) || !$Session->CheckPermission($PermissionName)).
$Session->CheckPermission($PermissionName) shows false if PermissionName does not exist and so I have to check for the existance of a permission called PermissionName.

My problem is that I have no $PermissionArray to check my PermissionName against. I've looked at the PermissionModel and found
public function GetPermissions($RoleID, $LimitToSuffix = '')
If the RoleID would be in $Session, I'd be happy, but it is not

So I'd either need a Vanilla function that replaces my in_array($PermissionName, $PermissionArray) or I need a way to get $PermissionArray.

The only way I see by now would be:
1. get the user from $Session
2. get user roles with RoleModels GetByUserID
3. loop through roles, call GetPermissions from PermissionModel and concat the results to $PermissionArray
4. do my in_array($PermissionName, $PermissionArray) check

But that would be around ten lines of code for something that I assume is a function somewhere in the dashboard application.

hgtonight

I get a full list of permissions with the following code in Yaga:

$PermissionModel = new PermissionModel();
$Permissions = $PermissionModel->PermissionColumns();
unset($Permissions['PermissionID']);
$PermissionKeys = array_keys($Permissions);
$PermissionList = array_combine($PermissionKeys, $PermissionKeys);

This spits out a nice array ready for Gdn_Form::Dropdown(), but you only really need the first two lines. I haven't tested this on 2.0, but it looks like PermissionColumns() exists in 2.0.18.10.

hgtonight

I get a full list of permissions with the following code in Yaga:

$PermissionModel = new PermissionModel();
$Permissions = $PermissionModel->PermissionColumns();
unset($Permissions['PermissionID']);
$PermissionKeys = array_keys($Permissions);
$PermissionList = array_combine($PermissionKeys, $PermissionKeys);

This spits out a nice array ready for Gdn_Form::Dropdown(), but you only really need the first two lines. I haven't tested this on 2.0, but it looks like PermissionColumns() exists in 2.0.18.10.

R_J

Perfect! PermissionColumns is the $PermissionArray I've needed

R_J

Just for completeness: in_array will not work, but that does the job
array_key_exists($PermissionName, Gdn::PermissionModel()->PermissionColumns())

peregrine

can you change existance to existence in the title and discussion. so when I search for "existence permission" intuitively. I will find it. Also maybe this could go in tutorials as well.