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http://git.savannah.gnu.org/cgit/savane-cleanup/framework.git/commit/?id=1be10a21d01dca8cddfe539fa485794f2781180b
commit 1be10a21d01dca8cddfe539fa485794f2781180b
Author: Sylvain Beucler <b...@beuc.net>
Date: Thu Jul 30 21:36:30 2009 +0200
Improve migration script, takes better care of duplicates and dangling FKs
diff --git a/MIGRATION.txt b/MIGRATION.txt
index ec89cc7..4b3c584 100644
--- a/MIGRATION.txt
+++ b/MIGRATION.txt
@@ -16,10 +16,6 @@
Users
=====
-To remove duplicate users *FOR TESTING*:
-(TODO: need to remove only the duplicate, not both)
-DELETE FROM user WHERE user_name IN
('adiebald','alkana','andersgh','andrenix','animalfarm','antigerme','baravalle','Bassslinger','blitzkerk','bolek11','brawil1','brijesh_gadhiya','caribe','caterkiller2001','cce','chawil','conan','cux221','dave_san','ddavies','doudou61','dungeon','elektroland','emil5','ericclaassen','espahr','fcattoen','gauntlet','Gerardoco','Gonzalvez','GOOS','grubthosch','hans-peter','heikorah','helen','jaguaryou','jezdikm','JonGretar','kodion','kpc82','kumud','lamborghini0102','markm','mbaruchel','mdopheide','moocha','Netsnipe','osia','otello','pepex82','phgbest007','planetstar','plijnzaad','plomo00','Progenator','pthom','puyo','qemm','quaxter','rafaelrt','rdunphy','realshitok','roeles','rubenperez','scorbeau','seb_cante','SeeksTheMoon','shezAbrat','shiau','shyguy','siman','sjh0320','sorenoid','Steve_Stanfield','surfnix54','suydam','Sweethrt758','taroo','tdp','The_WABBIT','thresher','tklein','tontonraoul','tony-rs','treker','tt3','vdemart','vinod','vka3','wbrown','Webb','wertzu','willou','wutzkem');
-
Warnings during import:
TODO: I don't really understand why three are illegal UTF-8 strings,
diff --git a/migrate_old_savane.sql b/migrate_old_savane.sql
index 6a3f8a5..6b7a079 100644
--- a/migrate_old_savane.sql
+++ b/migrate_old_savane.sql
@@ -1,6 +1,22 @@
--- USE savane;
+-- Some clean-up is done on the savane_old database. It may sound
+-- better to leave savane_old read-only, but at the same time this
+-- means we can experiment the clean-ups on live "old savane" installs
+-- before the migration.
+
-- Import all users except for the 'None' user (#100)
+-- Get rid of duplicates (old mysql/php/savane bug?)
+USE savane_old;
+DELETE FROM user
+ WHERE user_id IN (
+ SELECT user_id FROM (
+ SELECT B.user_id FROM user A, user B
+ WHERE A.user_id < B.user_id AND A.user_name = B.user_name
+ ) AS temp
+ );
+USE savane;
+-- Actual import
+TRUNCATE auth_user;
INSERT INTO auth_user
(id, username, first_name, last_name, email,
password, last_login, date_joined, is_active,
@@ -13,6 +29,7 @@ INSERT INTO auth_user
-- Import all extended information except for the 'None' user (#100)
-- (X or 0) means 'if V==NULL then 0 else V'
+TRUNCATE svmain_extendeduser;
INSERT INTO svmain_extendeduser
(user_ptr_id, status, spamscore, authorized_keys,
authorized_keys_count, people_view_skills, people_resume,
@@ -26,6 +43,7 @@ INSERT INTO svmain_extendeduser
-- Import group configurations
-- type_id -> id
+TRUNCATE svmain_groupconfiguration;
INSERT INTO svmain_groupconfiguration
(id, name, description, base_host,
mailing_list_address, mailing_list_virtual_host, mailing_list_format,
@@ -153,6 +171,7 @@ INSERT INTO svmain_groupconfiguration
-- Import groups
-- id <- group_id
-- name <- unix_group_name
+TRUNCATE auth_group;
INSERT INTO auth_group
(id, name)
SELECT group_id, unix_group_name
@@ -272,15 +291,48 @@ INSERT INTO svmain_extendedgroup
WHERE savane_old.groups.group_id != 100;
-- Import users<->groups relationships
--- Get rid of duplicates (long: several minutes):
-DELETE FROM savane_old.user_group
+-- Get rid of duplicates
+USE savane_old;
+-- Give priority to non-pending memberships
+DELETE FROM user_group
+ WHERE user_group_id IN (
+ SELECT user_group_id FROM (
+ SELECT B.user_group_id FROM user_group A, user_group B
+ WHERE A.admin_flags <> 'P' AND B.admin_flags = 'P'
+ AND A.user_id = B.user_id AND A.group_id = B.group_id
+ ) AS temp
+ );
+-- Delete other duplicates, give priority to the first one
+DELETE FROM user_group
WHERE user_group_id IN (
- SELECT A.user_group_id
- FROM savane_old.user_group A, savane_old.user_group B
- WHERE A.user_id = B.user_id AND A.group_id = B.group_id
- GROUP BY A.user_id, A.group_id HAVING count(*) > 1
+ SELECT user_group_id FROM (
+ SELECT B.user_group_id FROM user_group A, user_group B
+ WHERE A.user_group_id < B.user_group_id
+ AND A.user_id = B.user_id AND A.group_id = B.group_id
+ ) AS temp
+ );
+-- Get rid of ghost relationships (deleted group)
+DELETE FROM user_group
+ WHERE group_id IN (
+ SELECT group_id FROM (
+ SELECT user_group.group_id
+ FROM user_group
+ LEFT JOIN groups ON user_group.group_id = groups.group_id
+ WHERE groups.group_id IS NULL
+ ) AS temp
+ );
+-- Get rid of ghost relationships (deleted user)
+DELETE FROM user_group WHERE user_id IN (
+ SELECT user_id FROM (
+ SELECT user_group.user_id
+ FROM user_group
+ LEFT JOIN user ON user_group.user_id = user.user_id
+ WHERE user.user_id IS NULL
+ ) AS temp
);
+USE savane;
-- Actual import
+TRUNCATE auth_user_groups;
INSERT INTO auth_user_groups
(user_id, group_id)
SELECT user_id, group_id
@@ -289,29 +341,11 @@ INSERT INTO svmain_membership
(user_id, group_id, admin_flags, onduty)
SELECT user_id, group_id, admin_flags, onduty
FROM savane_old.user_group;
--- Get rid of ghost relationships (deleted group)
-DELETE FROM svmain_membership
- WHERE group_id IN (
- SELECT group_id FROM (
- SELECT group_id
- FROM svmain_membership
- LEFT JOIN svmain_extendedgroup ON svmain_membership.group_id =
svmain_extendedgroup.group_ptr_id
- WHERE group_ptr_id IS NULL
- ) AS temp
- );
--- Get rid of ghost relationships (deleted user)
-DELETE FROM svmain_membership WHERE user_id IN (
- SELECT user_id FROM (
- SELECT user_id
- FROM svmain_membership
- LEFT JOIN svmain_extendeduser ON svmain_membership.user_id =
svmain_extendeduser.user_ptr_id
- WHERE user_ptr_id IS NULL
- ) AS temp
- );
-- Set members of 'administration' as superusers
-- TODO: get the supergroup name from the old Savane configuration
UPDATE auth_user SET is_staff=1, is_superuser=1
WHERE id IN (
SELECT user_id
FROM auth_user_groups JOIN auth_group ON auth_user_groups.group_id =
auth_group.id
- WHERE auth_group.name='administration');
+ WHERE auth_group.name='administration'
+ );
-----------------------------------------------------------------------
Summary of changes:
MIGRATION.txt | 4 --
migrate_old_savane.sql | 88 +++++++++++++++++++++++++++++++++---------------
2 files changed, 61 insertions(+), 31 deletions(-)
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