has_many :comments, -> { where(:visible => true).order(:created_at) }, :class_name => "ChangesetComment"
has_and_belongs_to_many :subscribers, :class_name => 'User', :join_table => 'changesets_subscribers', :association_foreign_key => 'subscriber_id'
has_many :comments, -> { where(:visible => true).order(:created_at) }, :class_name => "ChangesetComment"
has_and_belongs_to_many :subscribers, :class_name => 'User', :join_table => 'changesets_subscribers', :association_foreign_key => 'subscriber_id'