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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class RemoveUndeletedGroups < ActiveRecord::Migration
DOWNTIME = false
def up
is_ee = defined?(Gitlab::License)
if is_ee
execute <<-EOF.strip_heredoc
DELETE FROM path_locks
WHERE project_id IN (
SELECT project_id
FROM projects
WHERE namespace_id IN (#{namespaces_pending_removal})
);
EOF
execute <<-EOF.strip_heredoc
DELETE FROM remote_mirrors
WHERE project_id IN (
SELECT project_id
FROM projects
WHERE namespace_id IN (#{namespaces_pending_removal})
);
EOF
end
execute <<-EOF.strip_heredoc
DELETE FROM lists
WHERE label_id IN (
SELECT id
FROM labels
WHERE group_id IN (#{namespaces_pending_removal})
);
EOF
execute <<-EOF.strip_heredoc
DELETE FROM lists
WHERE board_id IN (
SELECT id
FROM boards
WHERE project_id IN (
SELECT project_id
FROM projects
WHERE namespace_id IN (#{namespaces_pending_removal})
)
);
EOF
execute <<-EOF.strip_heredoc
DELETE FROM labels
WHERE group_id IN (#{namespaces_pending_removal});
EOF
execute <<-EOF.strip_heredoc
DELETE FROM boards
WHERE project_id IN (
SELECT project_id
FROM projects
WHERE namespace_id IN (#{namespaces_pending_removal})
)
EOF
execute <<-EOF.strip_heredoc
DELETE FROM projects
WHERE namespace_id IN (#{namespaces_pending_removal});
EOF
if is_ee
# EE adds these columns but we have to make sure this data is cleaned up
# here before we run the DELETE below. An alternative would be patching
# this migration in EE but this will only result in a mess and confusing
# migrations.
execute <<-EOF.strip_heredoc
DELETE FROM protected_branch_push_access_levels
WHERE group_id IN (#{namespaces_pending_removal});
EOF
execute <<-EOF.strip_heredoc
DELETE FROM protected_branch_merge_access_levels
WHERE group_id IN (#{namespaces_pending_removal});
EOF
end
# This removes namespaces that were supposed to be deleted but still reside
# in the database.
execute "DELETE FROM namespaces WHERE deleted_at IS NOT NULL;"
end
def down
# This is an irreversible migration;
# If someone is trying to rollback for other reasons, we should not throw an Exception.
# raise ActiveRecord::IrreversibleMigration
end
def namespaces_pending_removal
"SELECT id FROM (
SELECT id
FROM namespaces
WHERE deleted_at IS NOT NULL
) namespace_ids"
end
end
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