$recordings and $recording being reused:

The following error can be displayed when restoring a course containing
Elluminate activities:

Elluminate Live! Meeting "Demonstration"
Fatal error: Cannot use object of type stdClass as array in
/fs2/www/html/daw438/oumoodle/mod/elluminatelive/restorelib.php on line 164

The error is occurring because the variable in question ($recording) can be
corrupted due to loops within loops using the same variable names

Changed inner loop variables from recordings and recording to recordingslist
and recording item respectively so they do not conflict with the outer loop
variables recordings and recording.

$user being reused:

The following errors can be displayed when restoring a course containing
elluminate activities causing the restore to fail:

Elluminate Live! Meeting "Demonstration"
Warning: pg_query() [function.pg-query]: Query failed: ERROR: duplicate key
violates unique constraint "ou_elluuser_elmelm_uix" in
/fs2/www/html/daw438/oumoodle/lib/adodb/drivers/adodb-postgres7.inc.php on line
115

ADOConnection._Execute(INSERT INTO ou_elluminatelive_users (
ID, USERID ) VALUES ( 10, 1302 ), false) % line 891, file: adodb.inc.php
ADOConnection.Execute(INSERT INTO ou_elluminatelive_users ( ID,
USERID ) VALUES ( 10, 1302 )) % line 1680, file: dmllib.php
insert_record(elluminatelive_users, Object:stdClass) % line 365,
file: restorelib.php
elluminatelive_users_restore_mods(6, Array[1], Object:stdClass) % line
185, file: restorelib.php
elluminatelive_restore_mods(Object:object, Object:stdClass) % line 4563,
file: restorelib.php
ERROR: duplicate key violates unique constraint "ou_elluuser_elmelm_uix"

INSERT INTO ou_elluminatelive_users ( ID, USERID ) VALUES ( 10, 1302 )
line 1681 of lib/dmllib.php: call to debugging()
line 365 of mod/elluminatelive/restorelib.php: call to insert_record()
line 185 of mod/elluminatelive/restorelib.php: call to
elluminatelive_users_restore_mods()
line 4563 of backup/restorelib.php: call to elluminatelive_restore_mods()
line 9251 of backup/restorelib.php: call to restore_create_modules()
line 55 of backup/restore_execute.html: call to restore_execute()
line 193 of backup/restore.php: call to include_once()

Warning: pg_query() [function.pg-query]: Query failed: ERROR: current
transaction is aborted, commands ignored until end of transaction block in
/fs2/www/html/daw438/oumoodle/lib/adodb/drivers/adodb-postgres7.inc.php on line
115

Another instance where a variable is corrupted by unintentionally overwriting
it. In this case the variable $user is being used to create an elluminate user
object for insertion into the database, but the same variable name is then used
to obtain the corresponding moodle user, overwriting/deleting all the
elluminate user information.

Replaced second reference to $user by $moodle_user to prevent corruption of
$user object to be inserted into elluminate_users table