Displaying HABTM data in view - cakephp

Question

I have a simple cakephp 2.x app that I baked using the bake script. The two main tables are conditions and drugs. A condition HABTM drugs and vice verca. I'm trying to display the drugs that belong to a condition in the condition index, basic listing all conditions, but ONLY those drugs. I have tried doing it like this, to display the drugs belonging to a condition in a comma seperated list, which works in another 1.3 app:
<?php
$condition_drugs = '';
foreach($condition['Drug'] as $drug):
$condition_drugs .= $drug['drug'] . ', ';
//echo $drug['generic'];
endforeach;
//echo substr($condition_drugs, 0, -2);
echo $condition_drugs;
?>
But it gives the following two errors:
Undefined index: Drug [APP/View/Conditions/index.ctp, line 22], and Invalid argument supplied for foreach() [APP/View/Conditions/index.ctp, line 22]
I also looked at another article here that suggested doing it in a similar way. Is there something wrong with the code I have? Do I need a find in my model based on the ID? Here's the full index view code and controller:
View:
<div class="conditions index">
<h2><?php echo __('Conditions'); ?></h2>
<table cellpadding="0" cellspacing="0">
<tr>
<th><?php echo $this->Paginator->sort('condition'); ?></th>
<th><?php echo $this->Paginator->sort('principles'); ?></th>
<th><?php echo $this->Paginator->sort('treatment'); ?></th>
<th><?php echo $this->Paginator->sort('clinical_tips'); ?></th>
<th>Drugs</th>
<th class="actions"><?php echo __('Actions'); ?></th>
</tr>
<?php
foreach ($conditions as $condition): ?>
<tr>
<td><?php echo h($condition['Condition']['condition']); ?> </td>
<td><?php echo h($condition['Condition']['principles']); ?> </td>
<td><?php echo h($condition['Condition']['treatment']); ?> </td>
<td><?php echo h($condition['Condition']['clinical_tips']); ?> </td>
<td>
<?php
$condition_drugs = '';
foreach($condition['Drug'] as $drug):
$condition_drugs .= $drug['drug'] . ', ';
//echo $drug['generic'];
endforeach;
//echo substr($condition_drugs, 0, -2);
echo $condition_drugs;
?>
</td>
<td class="actions">
<?php echo $this->Html->link(__('View'), array('action' => 'view', $condition['Condition']['id'])); ?>
<?php echo $this->Html->link(__('Edit'), array('action' => 'edit', $condition['Condition']['id'])); ?>
<?php echo $this->Form->postLink(__('Delete'), array('action' => 'delete', $condition['Condition']['id']), null, __('Are you sure you want to delete # %s?', $condition['Condition']['id'])); ?>
</td>
</tr>
<?php endforeach; ?>
</table>
<p>
<?php
echo $this->Paginator->counter(array(
'format' => __('Page {:page} of {:pages}, showing {:current} records out of {:count} total, starting on record {:start}, ending on {:end}')
));
?> </p>
<div class="paging">
<?php
echo $this->Paginator->prev('< ' . __('previous'), array(), null, array('class' => 'prev disabled'));
echo $this->Paginator->numbers(array('separator' => ''));
echo $this->Paginator->next(__('next') . ' >', array(), null, array('class' => 'next disabled'));
?>
</div>
</div>
<div class="actions">
<h3><?php echo __('Actions'); ?></h3>
<ul>
<li><?php echo $this->Html->link(__('New Condition'), array('action' => 'add')); ?></li>
</ul>
</div>
Controller:
<?php
App::uses('AppController', 'Controller');
/**
* Conditions Controller
*
* #property Condition $Condition
*/
class ConditionsController extends AppController {
/**
* index method
*
* #return void
*/
public function index() {
$this->set('title_for_layout','Condition Index');
$this->Condition->recursive = 0;
$this->set('conditions', $this->paginate());
}
/**
* view method
*
* #throws NotFoundException
* #param string $id
* #return void
*/
public function view($id = null) {
$this->Condition->id = $id;
if (!$this->Condition->exists()) {
throw new NotFoundException(__('Invalid condition'));
}
$this->set('condition', $this->Condition->read(null, $id));
}
/**
* add method
*
* #return void
*/
public function add() {
if ($this->request->is('post')) {
$this->Condition->create();
if ($this->Condition->save($this->request->data)) {
$this->Session->setFlash(__('The condition has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The condition could not be saved. Please, try again.'));
}
}
$drugs = $this->Condition->Drug->find('list',array('fields'=>array('id','generic')));
$this->set(compact('drugs'));
}
/**
* edit method
*
* #throws NotFoundException
* #param string $id
* #return void
*/
public function edit($id = null) {
$this->Condition->id = $id;
if (!$this->Condition->exists()) {
throw new NotFoundException(__('Invalid condition'));
}
if ($this->request->is('post') || $this->request->is('put')) {
if ($this->Condition->save($this->request->data)) {
$this->Session->setFlash(__('The condition has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The condition could not be saved. Please, try again.'));
}
} else {
$this->request->data = $this->Condition->read(null, $id);
}
$drugs = $this->Condition->Drug->find('list',array('fields'=>array('id','generic')));
$this->set(compact('drugs'));
}
/**
* delete method
*
* #throws MethodNotAllowedException
* #throws NotFoundException
* #param string $id
* #return void
*/
public function delete($id = null) {
if (!$this->request->is('post')) {
throw new MethodNotAllowedException();
}
$this->Condition->id = $id;
if (!$this->Condition->exists()) {
throw new NotFoundException(__('Invalid condition'));
}
if ($this->Condition->delete()) {
$this->Session->setFlash(__('Condition deleted'));
$this->redirect(array('action' => 'index'));
}
$this->Session->setFlash(__('Condition was not deleted'));
$this->redirect(array('action' => 'index'));
}
}

Answer 1

To include habtm data, you need $recursive = 1;
You have set it to 0