Comments on: Pagination of data from a HABTM relationship

By: cakebaker

cakebaker — Fri, 08 Jan 2010 15:25:44 +0000

@Regis: You are welcome!

By: Regis

Regis — Thu, 07 Jan 2010 04:12:20 +0000

Thank you very much for this!! It was very helpful :-)

By: cakebaker

cakebaker — Mon, 28 Dec 2009 15:47:08 +0000

@KillerSponge: I’m glad to hear this article was helpful for you :)

By: KillerSponge

KillerSponge — Sun, 27 Dec 2009 12:17:55 +0000

I can’t thank you enough for this little tutorial. I’ve searched for hours for a suitable and relatively neat solution. Thank you!

By: The World of Dan » Blog Archive » Three and a half days coding

The World of Dan » Blog Archive » Three and a half days coding — Sat, 17 Oct 2009 15:31:43 +0000

[...] on HABTM relations such as the one between the Tag and Story models. After some research, however, I was able to find a solution to the problem. I don’t in any way understand how this works, all I know is that it does. Add to this a list [...]

By: cakebaker

cakebaker — Fri, 24 Jul 2009 09:47:35 +0000

@Jean-Philippe: You are welcome!

By: Jean-Philippe Sirois

Jean-Philippe Sirois — Thu, 23 Jul 2009 13:57:34 +0000

Awesome tutotrial. Can’t be more simple.

Great thanks for this, helping me a lot making my first search HABTM Search system in Cake.

I really love your website!

By: cakebaker

cakebaker — Thu, 25 Jun 2009 14:28:34 +0000

@matthew: Thanks for sharing!

By: matthew r

matthew r — Thu, 25 Jun 2009 04:19:47 +0000

I wanted to chime in here to say that I found this post and the resulting discussion in the comments useful. In the particular project I'm finishing up now, I have a Product model that has a HABTM relationship with both Suppliers and Locations, and my product search page, using the default controller pagination, was simply not working. I eventually realized that I needed to define paginateCount() and paginate() methods in my Product model, adding the necessary "group" clause that the default pagination doesn't respect. That is, I had this in my controller:


var $paginate = array(
  ...
  'group' => 'Product.id'
  ...
);

But it wasn't working. Instead I had to do this in models/product.php:


 function paginateCount($conditions, $recursive, $extra) {
     $parameters = compact('conditions');
     if ($recursive != $this->recursive) {
         $parameters['recursive'] = $recursive;
     }
     $all = $this->find('all', array_merge($parameters, $extra, array('group'=>'Product.id')));
     return sizeof($all);
 }
 
 function paginate($conditions, $fields, $order, $limit, $page, $recursive, $extra) {
     $parameters = compact('conditions', 'fields', 'order', 'limit', 'page');
     if ($recursive != $this->recursive) {
         $parameters['recursive'] = $recursive;
     }
     return $this->find('all', array_merge($parameters, $extra, array('group'=>'Product.id')));
 }

Note that this is almost the exact same code as in Controller::paginate() (starting around line 1077) but just with the addition of the group parameter being specified manually. I don't know why the group parameter wasn't making it all the way through Controller::paginate(), but this worked for me and I'm posting here in case it helps somebody else.

By: cakebaker

cakebaker — Mon, 02 Mar 2009 16:36:35 +0000

@mike: You are welcome!