Saving User Role Assignments - oracle-apex

Question

It is possible to save User Role Assignments? When I replace application or remove it and add new with same application id, Apex removes User Role Assignments from APEX_APPL_ACL_USERS table. Actually I can create custom table to store User Role Assigments and later use to insert in APEX_APPL_ACL_USERS table, but I think isn't good solution.

Answer 1

There currently isn't. The safest way is to backup your user roles before replacing the app. I found that when I do an import through the UI the users are preserved, when you delete the app the users are gone. There is a great blog about how to generate a script to restore user roles.
For a single app, here is a script (mostly taken from above blog). Replace the 12345 with your application id. It generates a script that you have to execute after you have recreated your application.
WITH application_id (app_id) AS
(SELECT 12345 FROM dual)
SELECT txt
FROM (SELECT 1 x, 'BEGIN' txt FROM DUAL
UNION ALL
SELECT 2,
RPAD(' ', 3)
|| CASE
WHEN rn = 1 THEN REPLACE(q'[APEX_UTIL.set_workspace('~workspace~');]', '~workspace~', workspace)
END
|| REPLACE(
REPLACE(
REPLACE(
q'[APEX_ACL.ADD_USER_ROLE(p_application_id=>~app~,p_user_name=>'~user~',p_role_static_id=>'~role~');]',
'~app~',
application_id),
'~user~',
user_name),
'~role~',
role_static_id) txt
FROM (SELECT workspace,
ROW_NUMBER() OVER(PARTITION BY workspace ORDER BY application_id, user_name, role_static_id) rn,
application_id,
user_name,
role_static_id
FROM apex_appl_acl_user_roles
JOIN application_id a ON a.app_id = application_id)
UNION ALL
SELECT 3, ' COMMIT;' FROM DUAL
UNION ALL
SELECT 4, 'END;' FROM DUAL)
ORDER BY x;