MVC - Parse Objects From Database - php

Question

I am trying to make my best OOP code to parse objects with data from database so I created a hook that call a class AppAutoLoadObjects from hooks folder.
config/hooks.php
$hook['pre_system'][] = array(
'class' => 'AppAutoLoadObjects',
'function' => 'initialize',
'filename' => 'AppAutoLoadObjects.php',
'filepath' => 'hooks'
);
hooks/AppAutoLoadObjects.php
class AppAutoLoadObjects
{
public function initialize()
{
spl_autoload_register(array($this,'autoloadCoreObjects'));
}
public function autoloadCoreObjects($class)
{
$path = array(
'objects/',
);
foreach($path as $dir) {
if (file_exists(APPPATH.$dir.$class."_Object".'.php'))
require_once(APPPATH.$dir.$class."_Object".'.php');
}
}
}
As you see in the code I have a objects folder where I require the object parser.
So if I have models/Products_model.php, the autoloadCoreObjects automatically loads objects/Products_Object.php .
Then in my Products_model.php I use on each function:
public function select_by_limit($start, $limit, $resolution) {
..........................................
$query = $this->db->get_compiled_select();
$result = $this->db->query($query);
return $result->custom_result_object('Products_Object');
}
So my object with items from database are parsed in Products_Object.php
class Proprietati_Object
{
private $_resolution;
public function __construct($resolution = 270){
$this->_resolution = $resolution;
$this->_ci = get_instance();
}
//here is where I check if any image in database and if not give a default
public function image(){
if($this->image_name):
return base_url('assets/uploads/'.$this->id_proprietate.'/'.$this->image_resolution());
else:
return base_url('assets/images/no-product-image-available.png');
endif;
}
//here is where I load a small part of view as string because I must show in view different html code for each product_type
public function get_block_caracteristics(){
if($this->product_type == 'apartament')
return $this->_ci->load->view('blocks/apartament', array('product' => $this), TRUE);
elseif($this->product_type == 'land')
return $this->_ci->load->view('blocks/land', array('product' => $this), TRUE);
}
//here is where I set the image resolution and depends on each page where I show the products. E.g. 100, 200, 500
private function image_resolution() {
$image = explode('.', $this->image_name);
return $image[0].'_'.$this->_resolution.'.'.$image[1];
}
}
With this approach I have my controller clean and I only use:
$products = $this->products->select_by_limit(0, 10);
$data['products'] = $products;
then in view:
<?php foreach($products as $product): ?>
<?= $product->image() ?>
<?= $product->get_block_caracteristics() ?>
<?php endforeach; ?>
My question is how can I pass the $resolution variable from the model to the Products_Object constructor? Or maybe my approach is not a good one?
I now this is a very detailed question but I am dealing with this from long time ago, and my purpose is to start coding with clean controllers and models. The framework I use is CodeIgniter.

Answer 1

your model
public function select_by_limit($start, $limit, $resolution)
{
$query = $this->db->get_compiled_select();
$result = $this->db->query($query);
$arrData = array();
foreach($result->result("Proprietati_Object") AS $objProduct)
{
$objProduct->setResolution($resolution);
$arrData[] = $objProduct;
}
return $arrData;
}
and in your Proprietati_Object add a function called setResolution
public function setResolution($resolution)
{
$this->_resolution = $resolution;
}
and thats it