How do I destroy all the posts when the board is destroyed?

Rails
1

I got a application like following.

A board has many posts
All posts belong to a board

I try to destroy all the posts under a board when I destroy the board.
My destroy function is following.

def destroy
@board = Board.find(params[:id])
@post = @board.posts
@post.destroy
@board.destroy

respond_to do |format|
  format.html { redirect_to(boards_url) }
  format.xml  { head :ok }
end

end

However, it does not work.
Could anyone tell me how to destroy all the posts when the board is
destroyed?

My source code is following.
http://dl.dropbox.com/u/40209252/forum_demo.tar.gz

2

Am 24.11.2011 15:55, schrieb Taiwan Vincent:

Could anyone tell me how to destroy all the posts when the board is
destroyed?

Take a look at the :dependent option for associations:

http://guides.rubyonrails.org/association_basics.html

HTH
Norbert

3

On Thu, Nov 24, 2011 at 8:25 PM, Taiwan Vincent <
[email protected]> wrote:

@post = @board.posts
Could anyone tell me how to destroy all the posts when the board is
[email protected].
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.

1)

class Board < ActiveRecord::Base
has_many :posts, :dependent => :destroy
end

  1. posts.each do |post|
    post.destroy
    end

  2. posts.delete_all

–
Regards
Mukesh Paras Singh

4

Am 27.11.2011 09:57, schrieb Taiwan Vincent:

  format.xml  { head :ok }

http://guides.rubyonrails.org/association_basics.html

HTH
Norbert

You are quoting my post, where I give you a solution that handles
everything with less coding effort in the model, where it belongs… But
fiddling around with a hack in the controller, that simply shouldnt do
such work.

But maybe I am the one who is wrong?

Bye
Norbert

5

Hi I got a solution. Here is my destroy function. Many thanks for the
reply.

def destroy
@board = Board.find(params[:id])
@board.posts.destroy_all
@board.destroy

respond_to do |format|
  format.html { redirect_to(boards_url) }
  format.xml  { head :ok }
end

end