47 lines
1.2 KiB
Ruby
47 lines
1.2 KiB
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
|
|
# for more information on how to write migrations for GitLab.
|
|
|
|
class DropEventsForMigrationTable < ActiveRecord::Migration
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
DOWNTIME = false
|
|
|
|
disable_ddl_transaction!
|
|
|
|
class Event < ActiveRecord::Base
|
|
include EachBatch
|
|
end
|
|
|
|
def up
|
|
transaction do
|
|
drop_table :events_for_migration
|
|
end
|
|
end
|
|
|
|
def down
|
|
create_table :events_for_migration do |t|
|
|
t.string :target_type, index: true
|
|
t.integer :target_id, index: true
|
|
t.string :title
|
|
t.text :data
|
|
t.integer :project_id
|
|
t.datetime :created_at, index: true
|
|
t.datetime :updated_at
|
|
t.integer :action, index: true
|
|
t.integer :author_id, index: true
|
|
|
|
t.index [:project_id, :id]
|
|
end
|
|
|
|
Event.all.each_batch do |relation|
|
|
start_id, stop_id = relation.pluck('MIN(id), MAX(id)').first
|
|
|
|
execute <<-EOF.strip_heredoc
|
|
INSERT INTO events_for_migration (target_type, target_id, project_id, created_at, updated_at, action, author_id)
|
|
SELECT target_type, target_id, project_id, created_at, updated_at, action, author_id
|
|
FROM events
|
|
WHERE id BETWEEN #{start_id} AND #{stop_id}
|
|
EOF
|
|
end
|
|
end
|
|
end
|