belongs_to :old_relation, :foreign_key => [:relation_id, :version], :inverse_of => :old_members
# A bit messy, referring to the current tables, should do for the data browser for now
belongs_to :member, :polymorphic => true
belongs_to :old_relation, :foreign_key => [:relation_id, :version], :inverse_of => :old_members
# A bit messy, referring to the current tables, should do for the data browser for now
belongs_to :member, :polymorphic => true