cakephp threaded comments - cakephp

Question

I a bit new to cakephp and I'm wondering why I have this kind of problem.
Basically, I am doing a threaded comments in cakephp. But my problem is that every time I try to "comment" on a "comment", it is displaying differently.
Here is a screenshot:
I want it to be reversed like all the child comments should be posted on the last row. Currently, when I add a new comment, it is displayed on the top rather than on the bottom. I want it to become like how facebook does their commenting.
Here is my code for this:
$comments = $this->UserDiscussionComment->find('threaded', array('conditions' => array('UserDiscussionComment.user_discussion_id' => $slug), 'order' => array('UserDiscussionComment.id DESC', 'UserDiscussionComment.created ASC')));
And here is a sample records in the database:
I want to change the order of the child comments. I tried "ASC" and "DESC" but its not working.
Thanks in advance.

Answer 1

You won't be able to order the children in a different order according to the documentation for find('threaded'). What I would do is after your find call, simply reverse the array:
$comments = $this->UserDiscussionComment->find('threaded', array(
'conditions' => array('UserDiscussionComment.user_discussion_id' => $slug),
'order' => array('UserDiscussionComment.id DESC')
));
for ($i = 0; $i < sizeof($comments); $i++) {
$comments[$i]['children'] = array_reverse($comments[$i]['children']);
}
Untested but it should do the trick (also I assume you can only comment 1 level deep like your screenshot shows).
Edit
I wanted to share a different approach I used in the past for the same thing you're trying to accomplish. Basically I set my Comment model up like so:
class Comment extends AppModel {
public $belongsTo = array(
'ParentComment' => array(
'className' => 'Comment',
'foreignKey' => 'parent_id'
),
'User'
);
public $hasMany = array(
'ChildComment' => array(
'className' => 'Comment',
'foreignKey' => 'parent_id'
)
);
}
Then, when I want to do a find, I can order the parent & child comments differently (note that I'm using the Containable behavior):
$comments = $this->Comment->find('all', array(
'order' => 'Comment.id DESC',
'contain' => array(
'ChildComment' => array(
'order' => 'ChildComment.id ASC'
)
)
));

Answer 2

array('UserDiscussionComment.id DESC', 'UserDiscussionComment.created ASC')
I think the error is there.
As UserDiscussionComment.id are all distinct, there is nothing to order for UserDiscussionComment.created ASC.
Try:
array('UserDiscussionComment.parent_id DESC', 'UserDiscussionComment.created ASC')