As of release 2.1, there is now a OG User Roles settings option which allows you to output debug info to a table.
You can use the Database Administration module in order to execute queries on your Drupal site database and view the table contents. Download from: http://www.drupal.org/project/dba
In order to output debug data to this table, go to OG User Roles settings, and in the form section "Test/Debug" place a check in the box next to Output debug data to og_user_test table?. This action will begin outputting data to the og_user_test table.
OG User Roles will automatically create this table:
CREATE TABLE og_user_test (
testDate varchar(25),
testUser varchar(5),
testUserName varchar(40),
testGroup varchar(5),
testFunction varchar(60),
testSubFunction varchar(80),
testString varchar(60),
testStatus varchar(10),
testURI varchar(200),
testAArg0 varchar(40),
testAArg1 varchar(40),
testAArg2 varchar(40),
testAArg3 varchar(40),
testPerm long varchar)
To see the output, you must be able to access the table using the SQL command:
"select * from og_user_test".
You can execute this command using the Database Administration module: Admin->Site Building->Database.
You will see output similar to this: