2 installations sharing the same login and users

[Kjeld]

I am thinking about setting up two installations of 4images that would share users. I have very carefully searched the forum, and although there are similar threads I couldn't find the answer to my dilemma. I was hoping someone would be able to think with and tell me if I am correct or wrong, or whether I am trying to do something that may potentially damage my data.

These are the requirements:

1. Installation 2 would use the users of installation 1
2. All other data (images, categories, comments, captions, etc.) would be separate

I have been playing around to figure out how to do this.

In installation 2, I changed "includes/constants.php" as follows:

from

Code: [Select]

define('USERS_TABLE', $table_prefix.'users');
to

Code: [Select]

define('USERS_TABLE', 'installation1_users');
This worked fine. The users were now available in installation 2.

However, when I log in at installation 1, I am still not logged in at installation 2 and visa versa.

This is of course because of the cookie settings in includes/sessions.php. I figure I must change sessions.php of installation 2. I tried several combinations, but couldn't figure it out.

If my setup for installation 1 is domain.com/photos and for installation 2 is domain.com/photos2, how should I change the following in sessions.php of installation 2?

Code: [Select]

define('COOKIE_PATH', '');
My questions in summary:

1. What do I put in COOKIE_PATH?
2. Is there anything else that I would need to change?
3. Is there any danger that data may get damaged, or that the program won't work when two installations share users and 1 cookie?

I  am sure that many other users would benefit from this modification as well, so I hope there will be some good input. 

[KurtW]

Hi,

use your modification also for:

Code: [Select]

define('SESSIONS_TABLE', 'installation1_sessions');
define('SESSIONVARS_TABLE', 'installation1_sessionvars');   


cu
KUrt

[Kjeld]

Aha, I missed that one. Thanks, Kurt! 

[Kjeld]

I am still not clear what I should put in COOKIE_PATH and question 3. Any ideas anyone?

1. What do I put in COOKIE_PATH?
2. Is there anything else that I would need to change?
3. Is there any danger that data may get damaged, or that the program won't work when two installations share users and 1 cookie?