Hi,
I want to merge two differents mybb forum. When i'm doing it, i'm losing the thread ratings of the forum I'm importing the datas : in the databse, the table mybb_threadratings does not contained it.
Is it possible to keep the rating of the different users ? Or should I do it after the merge by using personnal sql commands ?
Please, use the following on a backup database, you can't recover lost data !
Up to know, I have done the following in order to recover the thread ratings of the merged forum :
The merged forum has the prefix tempo_ and the new forum has the prefix mybb_ for the tables in database.
First copy the old table :
Add three columns to have the subject and the dateline from the merged forum and the new tid of the new forum :
Fill the subject's column by matching theirs tid :
Fill the username column by matching with their old uid :
Now it is possible to match to theirs new uid :
Same for the dateline column :
Fill the new_tid column by matching the subject and dateline (using two values permits to avoid a multi-matching) :
Now it is possible to add these ratings to the table of thread ratings for the new forum :
Now it is possible to delete the first copy :
It seems to work for me, hope this will help somebody else.
If anybody sees something wrong, feel free to correct me ;-)
I want to merge two differents mybb forum. When i'm doing it, i'm losing the thread ratings of the forum I'm importing the datas : in the databse, the table mybb_threadratings does not contained it.
Is it possible to keep the rating of the different users ? Or should I do it after the merge by using personnal sql commands ?
Please, use the following on a backup database, you can't recover lost data !
Up to know, I have done the following in order to recover the thread ratings of the merged forum :
The merged forum has the prefix tempo_ and the new forum has the prefix mybb_ for the tables in database.
First copy the old table :
Code:
CREATE TABLE copie_threadratings
AS SELECT * FROM tempo_threadratings;Add three columns to have the subject and the dateline from the merged forum and the new tid of the new forum :
Code:
ALTER TABLE `copie_threadratings` ADD `subject` varchar(120);
ALTER TABLE `copie_threadratings` ADD `new_tid` INT(10);
ALTER TABLE `copie_threadratings` ADD `username` varchar(120);
ALTER TABLE `copie_threadratings` ADD `new_uid` INT(10);
ALTER TABLE `copie_threadratings` ADD `dateline` bigint(30);Fill the subject's column by matching theirs tid :
Code:
UPDATE copie_threadratings
SET subject = (SELECT subject
FROM tempo_threads t1
WHERE t1.tid = copie_threadratings.tid);Fill the username column by matching with their old uid :
Code:
UPDATE copie_threadratings
SET username = (SELECT username
FROM tempo_users t2
WHERE t2.uid = copie_threadratings.uid);Now it is possible to match to theirs new uid :
Code:
UPDATE copie_threadratings
SET new_uid = (SELECT uid
FROM mybb_users t3
WHERE t3.username = copie_threadratings.username);Same for the dateline column :
Code:
UPDATE copie_threadratings
SET dateline = (SELECT dateline
FROM tempo_threads t4
WHERE t4.tid = copie_threadratings.tid);Fill the new_tid column by matching the subject and dateline (using two values permits to avoid a multi-matching) :
Code:
UPDATE copie_threadratings
SET new_tid = (SELECT tid
FROM mybb_threads t5
WHERE t5.subject = copie_threadratings.subject
AND t5.dateline = copie_threadratings.dateline);Now it is possible to add these ratings to the table of thread ratings for the new forum :
Code:
INSERT INTO mybb_threadratings (`rid`, `tid`, `uid`, `rating`, `ipaddress`)
SELECT `rid`, `new_tid`, `uid`, `rating`, `ipaddress`
FROM copie_threadratings;Now it is possible to delete the first copy :
Code:
DROP TABLE copie_threadratings;It seems to work for me, hope this will help somebody else.
If anybody sees something wrong, feel free to correct me ;-)