Rails - Nov 2011 - How do I destroy all the posts when the board is destroyed?

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

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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

On Thu, Nov 24, 2011 at 8:25 PM, Taiwan Vincent <
vincent.open.source.taiwan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> 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
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
> To post to this group, send email to
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>
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>
>
    1)
class Board < ActiveRecord::Base
   has_many :posts, :dependent => :destroy
end

   2) posts.each do |post|
         post.destroy
       end

   3)   posts.delete_all

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Regards
Mukesh Paras Singh

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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

On Nov 26, 1:23 am, Norbert Melzer
<timmel...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:
> 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
>
>  signature.asc
> < 1KViewDownload
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Am 27.11.2011 09:57, schrieb Taiwan Vincent:
> 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
>
> On Nov 26, 1:23 am, Norbert Melzer
<timmel...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>> 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
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