[Last Call] Learn about multicloud storage options and how to improve your company's cloud strategy. Register Now

x
?
Solved

How to fetch row set with JOINs in Zend Framework

Posted on 2008-06-20
6
Medium Priority
?
2,457 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 48

Accepted Solution

by:
hernst42 earned 2000 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
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
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

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

This article discusses how to create an extensible mechanism for linked drop downs.
Many old projects have bad code, but the budget doesn't exist to rewrite the codebase. You can update this code to be safer by introducing contemporary input validation, sanitation, and safer database queries.
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.
Suggested Courses

650 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