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Max Power  
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 More options Jan 9, 5:34 am
From: Max Power <laran.ta...@gmail.com>
Date: Wed, 9 Jan 2013 02:34:25 -0800 (PST)
Local: Wed, Jan 9 2013 5:34 am
Subject: Get post with comments
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Hi,

I want to paginate over posts which has some comments. That is, I want to
get from the database only those posts which has al least one comments and,
for each post, all the associated comments:

$post => array(
    [0] => array(
        Post,
        Comments => array(
            [0] => comment,
            ....
         )
   )
)

How can I do that?

I have got posts with some comments joining posts and commets tables, but I
don't know how to get all comments for each post.

$this->paginate['joins'] = array(
                    'table' => 'comments',
                    'alias' => 'Comment',
                    'type' => 'RIGHT',
                    'conditions' => array('Comment.post_id  = Post.id');
                );
$this->paginate['group'] = array('Post.id');
$posts = $personas = $this->paginate(null);

Kind regards,


 
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lowpass  
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 More options Jan 9, 2:09 pm
From: lowpass <zijn.digi...@gmail.com>
Date: Wed, 9 Jan 2013 14:09:16 -0500
Local: Wed, Jan 9 2013 2:09 pm
Subject: Re: Get post with comments
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On Wed, Jan 9, 2013 at 5:34 AM, Max Power <laran.ta...@gmail.com> wrote:
> Hi,

> I want to paginate over posts which has some comments. That is, I want to
> get from the database only those posts which has al least one comments and,
> for each post, all the associated comments:

The simplest way to handle this is to use counterCache. Add a column,
comment_count, to your posts table. In the Comment model ...

public $belongsTo = array(
        'Post' => array(
                'className' => 'Post',
                'foreignKey' => 'post_id',
                'counterCache' => 'comment_count'
        )
        //...
);

Whenever a new Comment is added the comment_count value will be incremented.

public $paginate = array(
        'fields' => ...,
        'limit' => ...,
        'order'=> ...,
        'conditions' => array(
                'Post.comment_count >' => 0
        ),
        'contain' => array('Comment')
);


 
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