idiorm / paris has_many as_array result set - php

Question

I'm having trouble getting the results of a has_many query using php idiorm/paris. Following the example from the paris site the has_many result for posts returns as an object.
That's great, and I can run through the object and access individual methods, but what I want to be able to do is pass the result set as an associative array off to my template engine for display.
Example:
class Post extends Model {
}
class User extends Model {
public function posts() {
return $this->has_many('Post'); // Note we use the model name literally - not a pluralised version
}
}
The api works this way:
// Select a particular user from the database
$user = Model::factory('User')->find_one($user_id);
// Find the posts associated with the user
$posts = $user->posts()->find_many();
I am able to access the posts object and print the result set like this:
// echo each post id
foreach ($posts as $post) {
echo $post->id;
}
What I'd really like to be to do though, is use as_array() to get the entire resultset as an associative array, limited by certain fields in the way as_array works for an individual row, e.g.
$post_list = $posts()->as_array(id,title,post,date);
This, or a call on something like $user->posts()->find_many()->as_array() don't work.
What is the correct way to access this type of result set using paris?

Answer 1

Adding this method to idiorm.php gives me the desired functionality.
public function find_array() {
if (func_num_args() === 0) {
return $this->_run();
}
$args = func_get_args();
$array = array();
foreach ($this->_run() as $r) {
$array[] = array_intersect_key($r, array_flip($args));
}
return $array;
}
Now I can call $post_list = $posts()->find_array(); or $posts()->find_array('id','title'); etc.

Answer 2

find_one returns a Model object, find_many returns an array of Models.
If you want to get the entire result set as an array of associative array, one solution should be to use array_map
function model_as_array($model) {
return $model->as_array();
}
$posts = $user->posts()->find_many();
$my_view->posts = array_map(model_as_array, $posts);
var_dump($my_view->posts);
or in php 5.3+ (not tested)
$aa_posts = array_map(function($model) {return $model->as_array();} , $posts);