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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 ResetEventsPrimaryKeySequence < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
class Event < ActiveRecord::Base
self.table_name = 'events'
end
def up
if Gitlab::Database.postgresql?
reset_primary_key_for_postgresql
else
reset_primary_key_for_mysql
end
end
def down
# No-op
end
def reset_primary_key_for_postgresql
reset_pk_sequence!(Event.table_name)
end
def reset_primary_key_for_mysql
amount = Event.pluck('COALESCE(MAX(id), 1)').first
execute "ALTER TABLE #{Event.table_name} AUTO_INCREMENT = #{amount}"
end
end
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