[Solved] Not getting the course lists

It seems that adminlib.php is not called at all during installation of joomdle

It does not have to be neccesary then.
In fact I checked the code and it gets called from admin/index.php, which is the Notifications page. So the functions should be added to table when you visit Notifications after enabling the plugin.

I know this because when I create a new function during development, I have to login as admin, before I can use. If not, I get the 7015 error.

So, if this function is not executing at all, it is very strange
What did you do to check? I would put an exit(); as the first command of the function, to see if it is being called.

I inserted some debug code at the very beginning of both of the functions in adminlib.php. Additionally, as a test I completely removed adminlib.php and then everything worked as before (I mean didn't work as before ).

As the functions redirects to other url, you won't be able to see debug code. That is why I suggested the exit.

Just to be sure you can put it in admin/index.php, just before it callas the function. Go to Notifications and see. It has to give you a blank page Then try to follow execution code by placing exits inside the function.

The debug code was assumed to write informations to a file.
If I insert exit(), Notifications becomes just a blank page when auth/joomdle is removed, but works (displaying a lot of errors, as before) if auth/joomdle is present

Ok. I did not pay much attention when you said this:

Both the plugins are active. On the Notification page there are many complains about "1062: Duplicate entry '...' for key 'mdl_mnethost_hosser_uix'" and "1062: Duplicate entry '...' for key 'mdl_confplug_plunam_uix'"

Because those tables did nod make any sense to me. I don't know those tables so I assumed they were from another cause. Do you know what are those tables?
I grepped my full moodle code for mdl_mnethost_hosser_uix and nothing popped up.

Do you have the tables names changed or something? maybe a leftover of 2.0 ... ?

No, I have no idea about these tables. I am running moodle 1.6.7+ (in 1.6.7 everything was exactly the same). And this is a fresh installation without any changes.

These errors occur as a result of queries:
INSERT INTO mdl_mnet_host2service(hostid, serviceid, publish) VALUES ('0', '4', '1'), etc.

I don't have those tables, but I looked for the table name on google:
tracker.moodle.org/browse/MDL-12885

This is a 2.0 related error, so I think you are having some BD confussion going on or something like that.
I would do a fresh 1.9.7 install in another clean DB.

As you suggested, I removed the old DB, made a fresh 1.9.7 install and it started to work! But right after copying joomdle to moodle/auth I had to go to Notifications (before activating the plugin). Otherwise, i.e., if I activated the plugin before going to Notifications, Notifications displayed errors. Anyway, it does work now.

Antonio, many thanks for your great help!!!

I keep getting error after error, I believe all/most are related to XML-RPC, which is finally set up and running on the server. Here is the most recent one:

1. I registered for an account in Joomla (via Virtuemart)
2. I confirmed/activated the account as a new user by clicking the link from Joomla in the automatically generated e-mail.
3. I tried to log in.

When trying to log in, I get: "mnet is disabled"

I've re-installed "auth_joomla.zip", and it doesn't seem to change/solve this.

Thoughts?