Rails cascading delete

Rails
1

Hello There:
I am trying to do a deep cascading deletes in rails.

The schema looks like this:

Blogs (has many) entries ( has many ) comments

A blog has n entries, an entry has n comments.

So, in my Blog model I use
has_many :entries, :dependent => :delete_all
and in my Entry model I use
has_many :comments,:dependent => :delete_all

The problem I am having is that deleting blogs, will only delete
entries, but will not delete comments. In other words, the cascading
delete isn’t deep?

Am I doing something wrong here?

Thanks
Hilal

2

On 2 April 2010 08:08, Hilal [email protected] wrote:

Hello There:
I am trying to do a deep cascading deletes in rails.

The problem I am having is that deleting blogs, will only delete
entries, but will not delete comments. In other words, the cascading
delete isn’t deep?

Am I doing something wrong here?

Try:

:dependent => :destroy

3

Hi Hilal,

You need to use :dependent => :destroy instead of :delete_all because
:delete_all doesn’t fire any callbacks. That’s why it only deletes one
level.

/Lasse

2010/4/2 Hilal [email protected]

4

Thanks all. Destroy worked great!,

Thanks
Hila;