我有这个(合同和附件与has_and_belongs_to_many相关):
# Get the contract and specific accessory based on params
@contract = Contract.find(params[:id])
@accessory = @contract.accessories.find(params[:accessory_id])
现在,我想从@contract中删除该特定配件。我不想从数据库中删除记录,只是想删除两者之间的关联。
这样做有什么困难?
谢谢!
答案 0 :(得分:48)
这个怎么样:
@contract.accessories.delete(@accessory)
另请参阅:How do I remove a single HABTM associated item without deleting the item itself?