ruby-on-rails – Rails：dependent => destroy,想要调用另一个动作而不是destroy

概述我有一个完美运行的has_many：through模型. has_many :varietals has_many :grapes, :through => :varietals, :dependent => :destroy 我想调用另一个动作而不是：destroy.事实上,我不想取消项目或销毁它,我想将记录状态字段从1更新为0而不是销毁记录. 如何调用自定义方法而不是销毁？我想我可以在模型 我有一个完美运行的has_many：through模型.

has_many :varIEtals  has_many :grapes,:through => :varIEtals,:dependent => :destroy

我想调用另一个动作而不是：destroy.事实上,我不想取消项目或销毁它,我想将记录状态字段从1更新为0而不是销毁记录.

如何调用自定义方法而不是销毁？我想我可以在模型中做到这一点……谢谢.

这个方法放在哪里？在主模型或模型中,记录将被销毁？

编辑：

我很抱歉,但我认为我没有解释我的问题.我的问题不仅仅是在主模型被销毁之后的某些东西.我想在VarIEtal模型中自定义destroy动作,即使主记录没有被破坏.

就像是：

class VarIEtal < ActiveRecord::Base    private      def destroy        self.update_attributes(:status => 0)      endend

实际上这个动作没有被称为……

解决方法 has_many：dependent仅限于几个选项.根据 documentation：

:dependent If set to :destroy all the associated objects are destroyed
alongsIDe this object by calling their destroy method. If set to
:delete_all all associated objects are deleted without calling their
destroy method. If set to :nullify all associated objects’ foreign
keys are set to NulL without calling their save callbacks. If set to
:restrict this object raises an ActiveRecord::DeleteRestrictionError
exception and cannot be deleted if it has any associated objects.

If using with the :through option,the association on the join model
must be a belongs_to,and the records which get deleted are the join
records,rather than the associated records.

看起来您需要更改destroy方法以更新状态字段.

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