module Doorkeeper::Orm::ActiveRecord::Mixins::AccessToken::ClassMethods

def not_expired
  relation = where(revoked_at: nil)
  if supports_expiration_time_math?
    # have not reached the expiration time or it never expires
    relation.where("#{expiration_time_sql} > ?", Time.now.utc).or(
      relation.where(expires_in: nil)
    )
  else
    ::Kernel.warn <<~WARNING.squish
      [DOORKEEPER] Doorkeeper doesn't support expiration time math for your database adapter (#{adapter_name}).
      Please add a class method `custom_expiration_time_sql` for your AccessToken class/mixin to provide a custom
      SQL expression to calculate access token expiration time. See lib/doorkeeper/orm/active_record/mixins/access_token.rb
      for more details.
    WARNING
    relation
  end
end