Limiting View Access without editing all Controllers

[eluser]BrentNJ[/eluser]
So if I have a

user.php controller
with functions user_view, user_add, user_edit. each function loads their respective views

user_view.php, user_add.php, user_edit.php


One user may have permissions to do an edit while another may not

I put all the names of the allowable views for that user based on that users role in a session variable

Do I have to check in each function user_view, user_add, user_delete? I have about 10 controllers now. Or can I do that somehow in the User() function?