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heptapod
heptapod
Commits
3bcd53332dd4
Commit
346f5824
authored
Nov 10, 2016
by
Douglas Barbosa Alexandre
Browse files
Use subqueries instead of joins to migrate subscriptions
parent
a870911a90d0
Changes
1
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db/migrate/20161031174110_migrate_subscriptions_project_id.rb
View file @
3bcd5333
...
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@@ -5,50 +5,35 @@ class MigrateSubscriptionsProjectId < ActiveRecord::Migration
DOWNTIME_REASON
=
'Subscriptions will not work as expected until this migration is complete.'
def
up
if
Gitlab
::
Database
.
mysql?
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
INNER JOIN issues ON issues.id = subscriptions.subscribable_id AND subscriptions.subscribable_type = 'Issue'
SET subscriptions.project_id = issues.project_id;
EOF
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
INNER JOIN merge_requests ON merge_requests.id = subscriptions.subscribable_id AND subscriptions.subscribable_type = 'MergeRequest'
SET subscriptions.project_id = merge_requests.target_project_id;
EOF
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
INNER JOIN labels ON labels.id = subscriptions.subscribable_id AND subscriptions.subscribable_type = 'Label'
INNER JOIN projects ON projects.id = labels.project_id
SET subscriptions.project_id = projects.id;
EOF
else
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = issues.project_id
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT issues.project_id
FROM issues
WHERE issues.id = subscriptions.subscribable_id
AND subscriptions.subscribable_type = 'Issue';
EOF
WHERE issues.id = subscriptions.subscribable_id AND subscriptions.subscribable_type = 'Issue'
)
WHERE subscriptions.subscribable_type = 'Issue';
EOF
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = merge_requests.target_project_id
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT merge_requests.target_project_id
FROM merge_requests
WHERE merge_requests.id = subscriptions.subscribable_id
AND subscriptions.subscribable_type = 'MergeRequest';
EOF
WHERE merge_requests.id = subscriptions.subscribable_id AND subscriptions.subscribable_type = 'MergeRequest'
)
WHERE subscriptions.subscribable_type = 'MergeRequest';
EOF
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = projects.id
execute
<<-
EOF
.
strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT projects.id
FROM labels INNER JOIN projects ON projects.id = labels.project_id
WHERE labels.id = subscriptions.subscribable_id
AND subscriptions.subscribable_type = 'Label';
EOF
end
WHERE labels.id = subscriptions.subscribable_id
AND subscriptions.subscribable_type = 'Label'
)
WHERE subscriptions.subscribable_type = 'Label';
EOF
end
def
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