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# frozen_string_literal: true
class AddSourcingEpicDatesFks < ActiveRecord::Migration[5.1]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
add_concurrent_index :epics, :start_date_sourcing_epic_id, where: 'start_date_sourcing_epic_id is not null'
add_concurrent_index :epics, :due_date_sourcing_epic_id, where: 'due_date_sourcing_epic_id is not null'
add_concurrent_foreign_key :epics, :epics, column: :start_date_sourcing_epic_id, on_delete: :nullify
add_concurrent_foreign_key :epics, :epics, column: :due_date_sourcing_epic_id, on_delete: :nullify
end
def down
remove_foreign_key_if_exists :epics, column: :start_date_sourcing_epic_id
remove_foreign_key_if_exists :epics, column: :due_date_sourcing_epic_id
remove_concurrent_index :epics, :start_date_sourcing_epic_id
remove_concurrent_index :epics, :due_date_sourcing_epic_id
end
end
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