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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 DropUserActivitiesTable < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
# When using the methods "add_concurrent_index" or "add_column_with_default"
# you must disable the use of transactions as these methods can not run in an
# existing transaction. When using "add_concurrent_index" make sure that this
# method is the _only_ method called in the migration, any other changes
# should go in a separate migration. This ensures that upon failure _only_ the
# index creation fails and can be retried or reverted easily.
#
# To disable transactions uncomment the following line and remove these
# comments:
# disable_ddl_transaction!
def up
drop_table :user_activities if table_exists?(:user_activities)
end
def down
unless table_exists?(:user_activities)
create_table "user_activities", force: :cascade do |t|
t.integer "user_id"
t.datetime "last_activity_at", null: false
end
add_index "user_activities", ["user_id"], name: "index_user_activities_on_user_id", unique: true, using: :btree
end
end
end
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