+ @removed_uuids = []
+ links = []
+ item = ArvadosBase.find params[:item_uuid]
+ if (item.class == Link and
+ item.link_class == 'name' and
+ item.tail_uuid = @object.uuid)
+ # Given uuid is a name link, linking an object to this
+ # folder. First follow the link to find the item we're removing,
+ # then delete the link.
+ links << item
+ item = ArvadosBase.find item.head_uuid
+ else
+ # Given uuid is an object. Delete all names.
+ links += Link.where(tail_uuid: @object.uuid,
+ head_uuid: item.uuid,
+ link_class: 'name')
+ end
+ links.each do |link|
+ @removed_uuids << link.uuid
+ link.destroy
+ end
+ if item.owner_uuid == @object.uuid
+ # Object is owned by this folder. Remove it from the folder by
+ # changing owner to the current user.
+ item.update_attributes owner_uuid: current_user
+ @removed_uuids << item.uuid
+ end