Extra Attribute Disappears after it is set successfully - phalcon

Question

I am trying to get all records that are tied to a parent object through a lookup table, and insert them directly into the model. I have an object, Role, that hasMany() RoleEndpoints. RoleEndpoints belongs to Role and hasMany() Endpoints. All the data is being retrieved exactly as I expect, however, it seems to disappear after I set it.
<?php
class ACL {
private $_di;
public function __construct($di) {
$this->_di = $di;
}
public function createACL() {
if(!$this->_acl) {
$this->_acl = new stdClass();
$roles = $possibleRoles = Roles::find();
/**
* Check if there is at least one role out there
*/
if($roles->count() > 0) {
/**
* Iterate over all of the records
*/
while($roles->valid()) {
$endpoints = array();
/**
* Grab each role's endpoints through the relationship
*/
foreach($roles->current()->getRoleEndpoints() as $roleEndpoint) {
$endpoints[] = Endpoints::findFirst($roleEndpoint->endpoint_id);
}
/**
* At this point, the endpoints exist in the current Role model;
I tried several different approaches; this seemed the best
*/
$roles->current()->endpoints = $endpoints;
}
/**
* Set object to loop through from the beginning
*/
$roles->rewind();
/**
* Here is where my issue lies.
*
* The endpoints attribute, which is set as a public attribute in the model class
* gets unset for some reason
*/
while($roles->valid()) {
echo '<pre>';
var_dump($roles->current());
exit;
}
As the comments say, during the second iteration of the result set, the endpoints attribute drops becomes null for some reason. Am I doing something wrong here? Am I missing a step?
Any help would be appreciated. Thank you!

Answer 1

There is a missing next() in the iterator traversing:
while ($roles->valid()) {
$endpoints = array();
/**
* Grab each role's endpoints through the relationship
*/
foreach ($roles->current()->getRoleEndpoints() as $roleEndpoint) {
$endpoints[] = Endpoints::findFirst($roleEndpoint->endpoint_id);
}
/**
* At this point, the endpoints exist in the current Role model;
* I tried several different approaches; this seemed the best
*/
$roles->current()->endpoints = $endpoints;
//Missing next
$roles->next();
}
Also, you don't need to iterate the cursor in that way, just a foreach is easy to read and maintain:
$roles = Roles::find();
$roleEndpoints = array();
if (count($roles)) {
foreach ($roles as $role) {
$endpoints = array();
/**
* Grab each role's endpoints through the relationship
*/
foreach ($role->getRoleEndpoints() as $roleEndpoint) {
$endpoints[] = Endpoints::findFirst($roleEndpoint->endpoint_id);
}
/**
* At this point, the endpoints exist in the current Role model;
* I tried several different approaches; this seemed the best
*/
$roleEndpoints[$role->id] = $endpoints;
}
}
//Get the endpoints
foreach ($roleEndpoints as $roleId => $endpoint) {
//...
}
Also, If this is a common task you can add a method to your model to reuse that logic:
class Roles extends Phalcon\Mvc\Model
{
public function getEndpoints()
{
$endpoints = array();
foreach ($this->getRoleEndpoints() as $roleEndpoint) {
$endpoints[] = Endpoints::findFirst($roleEndpoint->endpoint_id);
}
return $endpoints;
}
public function initialize()
{
//...
}
}
So you can get your endpoints:
$roles = Roles::find();
if (count($roles)) {
foreach ($roles as $role) {
$endpoints = $role->getEndpoints();
}
}