has_many :through with :dependent = :destroy_all

rubyonrails-talk
1

Hi,

I have a member class that has many application_partials through subdivisions. My models look like the following:

class Member < Company ...   has_many :subdivisions, :dependent => :destroy   has_many :application_partials, :through => :subdivisions, :order => "subdivisions.position" .... end

class Subdivision < ActiveRecord::Base   belongs_to :member   belongs_to :application_partial, :dependent => :destroy   acts_as_list :scope => :member_id end

class ApplicationPartial < ActiveRecord::Base   has_many :subdivisions   has_many :members, :through => :subdivisions end

When I destroy a member, all of the application partials associated with the member should be destroyed as well. I have tried various methods, but can not find a way to accomplish this.

Thanks for your help!

2

I think since your ApplicationPartial doesn't belong_to the Subdivision, it isn't a dependent... you might want to revisit how your model relationships are spec'ed.

3

Thanks for the reply.

Do you have any recommendations on how this associations should be done? What I am trying to accomplish is to have a member, that has and belongs to many ApplicationPartials but using the join table subdivisions (using has_many :through). Every example that I can find online does the relationships this way.

Maybe the best was is to write a before destroy action to accomplish this?

Thanks again!

4

The more I think about this, the more that it doesn't make sense, and is over complicated for what I am trying to do.

I am switching my association to a has_many. Thanks for your help!

5

Quitter