Solved

How to fetch row set with JOINs in Zend Framework

Posted on 2008-06-20
6
2,409 Views
Last Modified: 2008-06-23
I have a php script that loops though a rowset.

I'm tying to figure out a way to use joins so that my rowset will contain more data.  My problem is that joins are not allowed.  

"You can not specify columns from a JOINed tabled to be returned in a row/rowset. Doing so will trigger a PHP error. This was done to ensure the integrity of the Zend_Db_Table is retained. i.e. A Zend_Db_Table_Row should only reference columns derived from its parent table. "

What method should I be using ?


IndexController.php
 
 

 public function showallAction()

    {

    	$this->view->title = "Showing All PSI Inventory";

	    

    	$items = new Items();

	   	$fields = '"public"."t_item_types"."name",

 		"public"."t_items"."id", "public"."t_items"."serial",

 		"public"."t_items"."nickname",

		 "public"."t_sites"."name" AS sitename, "public"."t_status"."name" AS statusname

	   	';

	   	$joins = 'INNER JOIN "public"."t_status" ON

	   	("public"."t_items"."status_id" = "public"."t_status"."id")

 		INNER JOIN "public"."t_sites" ON ("public"."t_items".

 		"site_id" = "public"."t_sites"."id") INNER JOIN

 		"public"."t_item_types" ON ("public"."t_items"."

 		type_id" = "public"."t_item_types"."id")' ;

 

    	$select = $items->select($fields);

	   	$select->join($joins);

		$this->view->items = $items->fetchAll($select);

		echo $fields;

		echo $joins;
 

    }
 
 
 

showall.phtml
 

<p><a>Displaying Short View</a></p>

<table>

<tr>

     <th>nickname</th>

     <th>serial</th>

     <th>&nbsp;</th>

</tr>

<?php foreach($this->items as $item) : ?>

<tr>

     <td><?php echo $this->escape($item->nickname);?></td>

     <td><?php echo $this->escape($item->serial);?></td>

     <td>

          <a href="<?php echo $this->url(array('controller'=>'index',

              'action'=>'edit', 'id'=>$item->id));?>">Edit</a>

          <a href="<?php echo $this->url(array('controller'=>'index',

              'action'=>'delete', 'id'=>$item->id));?>">Delete</a>

     </td>

</tr>

<?php endforeach; ?>

</table>
 
 

and my items.php file
 

require_once 'Zend/Db/Table/Abstract.php';
 

class Items extends Zend_Db_Table_Abstract  {

	/**

	 * Returns ShortView Data

	 */

	protected $_name = 't_items';

	

	

}

Open in new window

0
Comment
Question by:sean-keys
  • 3
  • 3
6 Comments
 
LVL 48

Accepted Solution

by:
hernst42 earned 500 total points
ID: 21834771
Start here to read:
http://framework.zend.com/manual/en/zend.db.select.html#zend.db.select.building

You need a Zend_Db_Select class and not a Zend_Db_Table_Abstract class. Zend_Db_Table_Abstract implements the Active Record pattern which typical does not work with join on the database backend.
0
 

Author Comment

by:sean-keys
ID: 21835379
Thanks for clearing that up.  I read about Select and came up with this

I get this error
Fatal error: Uncaught exception 'Zend_Db_Exception' with message 'Adapter name must be specified in a string' in

I think I have an error because $db isn't my current factory???


I have

// setup database
$db = Zend_Db::factory($config_db->db);

in my index.php
 public function showallAction()

    {

    	$this->view->title = "Showing All PSI Inventory";

	    

		$db = Zend_Db::factory();

		$select = new Zend_Db_Select($db);

		$select->from('t_items', array('id','serial','nickname'));

		$query = $db->query($select);

		$result = $query->fetchAll();

		echo $result;

Open in new window

0
 
LVL 48

Expert Comment

by:hernst42
ID: 21835494
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 48

Expert Comment

by:hernst42
ID: 21835497
In your posted code it's only
$db = Zend_Db::factory();
without arguments. Sorry not realy sure with the Zend-Framework
0
 

Author Comment

by:sean-keys
ID: 21847364
I already have a factory setup in my index.php  How can I reference it?  I think its something along the lines of $this or get>> ?
0
 

Author Comment

by:sean-keys
ID: 21847522

// load configuration

$config_db = new Zend_Config_Ini('../application/default/config.ini', 'general');

$registry = Zend_Registry::getInstance();

$registry->set('config', $config_db);
 

// setup database

$db = Zend_Db::factory($config_db->db);

Zend_Db_Table::setDefaultAdapter($db);

Open in new window

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Developers of all skill levels should learn to use current best practices when developing websites. However many developers, new and old, fall into the trap of using deprecated features because this is what so many tutorials and books tell them to u…
This article discusses how to create an extensible mechanism for linked drop downs.
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now