MySQL cyclically one row for each valid user - mysql

Question

Here's the background, I have a table object containing :
id
user (id from user table)
date (date)
state (0|1)
And another table user containing :
id
state (0|1)
EX.:
Object
ID | USER | DATE | STATE
1 1 2012-10-01 1
2 2 2012-08-01 1
3 3 2012-10-01 1
4 3 2012-10-02 1
5 3 2012-09-01 1
6 3 2012-10-01 1
7 1 2012-10-02 1
8 2 2012-10-02 0
9 2 2012-10-02 1
10 1 2012-10-01 1
11 2 2012-10-01 1
12 3 2012-10-01 0
13 4 2012-11-11 1
Users
ID | STATE
1 | 1
2 | 1
3 | 1
4 | 0
I would make a request to display one object per valid state user cyclically, if object state is active, order by date DESC.
EX. result :
ID | USER | DATE | STATE
10 1 2012-11-01 1
9 2 2012-10-02 1
4 3 2012-10-02 1
7 1 2012-10-02 1
11 2 2012-10-01 1
3 3 2012-10-01 1
1 1 2012-10-01 1
2 2 2012-08-01 1
6 3 2012-10-01 1
5 3 2012-09-01 1
I can do simple queries but then I admit to not knowing how to do here.
EDIT 2012-11-22 :
Let trying another approch... With this query (thanks Michiel van Vaardegem), I have a list of users, in order that I want... the one with freshness object on top.
SELECT o.user
FROM object o
INNER JOIN users ON user.id = o.user
WHERE o.state=1 AND users.state=1
GROUP BY o.user
ORDER BY o.date DESC
Result is :
USER
1
2
3
NEW QUESTION APPROCH :
With this list of ids, the possible calculated count of rows, and user defined vars, do you think something could be done?
Exemple :
Assuming this list, SELECT * FROM object WHERE user IN
($thislist) AND state=1 ORDER BY date DESC
For each object row depending of user (here I don't know how to explain in mysql)
incrementing a rank var with the userposition(in cycle) + usercount
ORDER BY rank LIMIT n,x that result
I whant to rank my objects in a user cycle, like :
object from user 1,2,3,1,2,3,1,3,3,1,1,1,1,1,1,1,1,etc... if exist
Do this new approch algo be realizable in a mysql query, and if possible how... that is the great question?
Can anybody see a solution only in MySQL?
Thanks in advance

Answer 1

Something like:
SELECT o.id, o.user, o.date, 1 AS state
FROM object o
INNER JOIN user ON u.id = o.user
WHERE o.state = 1 AND u.state = 1
GROUP BY o.user, o.date
ORDER BY o.user, o.date DESC
I'm not sure, but if I read it correctly, you only want records where the state in both tables is '1', correct?
And you want to sort first on user and then on the date desc?