Tabs tab name or tab id

Question

Hi
I'm writing application with access control to several tabs there will be condition checking if user :APP_USER have access to selected tab. The point is how to get tab_name or tab_id. and use it in pl\sql function like I can use :APP_USER
Or
how can I do this without using tab_id
Regards
Jaroslaw

Answer 1

CREATE OR REPLACE
FUNCTION can_user_access_tab(p_user IN VARCHAR2
                                                ,p_tab   IN VARCHAR2
RETURN VARCHAR2
IS
  ln_count number;
BEGIN
  SELECT count(1) INTO ln_count
  FROM acces_tab_users
  WHERE username=p_user
  AND tab_name=p_tab;
  if (ln_count=0) THEN
     return 'N';
  else
    return 'Y';
END;to each tab add a SQL expression condition
can_user_access_tab(:APP_USER,'<tab name>') = 'Y'
Note : <tab name> would be different for each tab , so you have to modify the conidtion for each tab with a new string that matches your table's(acces_tab_users)  tab_name column.
If you want to use an authorization scheme which uses tabname and user , there is a substitution string named CURRENT_PARENT_TAB_TEXT that might work for you. But I couldn't find anything for the sub tab.
In the authorization scheme that would be
return can_user_access_tab(:APP_USER,:CURRENT_PARENT_TAB_TEXT) --function returns BOOLEAN in this caseI haven't used it, so can't provide any more info on this at the moment.
Update
Use Jari's method and pass :APP_USER and :APP_PAGE_ID to the authorization scheme. You would have to set up the tab access table based on the page number for this.
Edited by: vee on Mar 3, 2011 3:45 AM