bsw@2: MemberImage = mondelefant.new_class()
bsw@2: MemberImage.table = "member_image"
bsw@2: MemberImage.primary_key = { "member_id", "image_type" }
bsw@2: 
bsw@2: function MemberImage:by_pk(member_id, image_type, scaled)
bsw@2:   return self:new_selector()
bsw@2:     :add_where{ "member_id = ?",  member_id }
bsw@2:     :add_where{ "image_type = ?", image_type }
bsw@2:     :add_where{ "scaled = ?", scaled }
bsw@2:     :optional_object_mode()
bsw@2:     :exec()
bsw@2: end