Delete Children rails 4

Question

I have the class project ,

class Project < ActiveRecord::Base
  has_many :Users
  acts_as_tree
end

I want to delete all children, if I delete the parent, in this case meaning, if I delete the project(parent) must be deleted all users (children) and subprojects(children).

I can add by user dependent: :delete_all but I don't know how can I do with acts_as_tree

Thanks

You should probably define the tree relationship as an associaion as well! `has_many :children, class_name: 'Project', dependent: :destroy, foreign_key: "parent_id"` (check the name of the foreign_key) — bo-oz, Nov 30 '15 at 13:58

score 0 · Answer 1 · answered Nov 30 '15 at 11:37

0

Try to use dependent: :destroy like:-

has_many :users, dependent: :destroy

answered Nov 30 '15 at 11:37

user3506853

814
5
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I know how I do for users, I don't know how can I do this for acts_as_tree! read the issue plz – Arthur Nov 30 '15 at 11:39

score 0 · Answer 2 · answered Dec 07 '16 at 14:50

act_as_tree default behavior will automatically destroy the children when you destroy the parent as you can see in the source code (https://github.com/amerine/acts_as_tree/blob/master/lib/acts_as_tree.rb)

However, you can change this behavior the exact same way as you would with the has_many method, for instance :

act_as_tree dependent: :delete_all

So in your case, you just need to cascade destroy the users :

class Project < ActiveRecord::Base
  has_many :users, dependent: :destroy
  acts_as_tree # dependent: :destroy
end

Therefore @user3506853's answer is actually correct considering the way you present your issue.

Cheers !

Delete Children rails 4

2 Answers2