[Catalyst] Users hierarchy

sindharta_tanuwijaya at yahoo.co.jp sindharta_tanuwijaya at yahoo.co.jp
Tue Jun 3 03:12:57 BST 2008


Maybe an algorithmic approach ?

ancestor = edited.parent;
found = false;
while (found==false and ancestor!=null) {
  if (ancestor == current_user)
    found= true;
  ancestor = ancestor.parent
return found;

I came from C++ background rather than Perl, so I am sorry if it looks more like C++ but I hope you got the idea. Not that there's a bit of recursive going on there.


jakac <jakac at iprom.si> wrote:     Hello!
 I need a help on building a model for user that has a permission to edit 
 other users that were created by this user or any of his children, grandchildren etc.
 (difficult sentence, I know)
 To make this a little more understandable here's my database table:
 - user_id 
 - username
 - password
 - various other data such as fname, lname, address etc.
 - parent_id
 Column "parent_id" has a value of "user_id" that created one user. There is also
 a "superadministrator" with parent_id '0' that can edit everybody.
 Now I would like to build a model that I can use in my controllers like:
 if ( user_id is child,grandchild,gradgrandchild.... of logged in $c->user ) {
     # has permisson to edit 
 } else {
     # doesn't have a permission to edit
 - superadmin
 |__- foo
 |__- bar
 |____- john
 |______- doe
 In this example:
 - superadmin can edit anybody,
 - bar can edit john & doe
 - john can edit only doe
 - foo can't edit anybody since he has no children
 And there can be unlimited levels of users... 
 There is no problem with permission to edit first child since I can just compare
 logged in user's ID with edited user's parent_id but when edited user is grandchild,
 grandgrandchild, (grand * n) child of $c->user then I need some kind of model
 to return true/false value.
 I've never done that and I am also new to Catalyst so any help would be appreciated.
 Thank you!
 JakaC. _______________________________________________
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