[eluser]Unknown[/eluser]
Hi,
I am trying to work by UML Class diagram, so I whanted to have separatly the classes that
are related to business logic from model. So bear with me.
the business class:
Code:
class Category{
public $id;
public $description;
public function __edit(){
$this->CI =& get_instance();
$sql = "UPDATE category SET description = '".$this->description."' WHERE id = ".$this->id;
$this->CI->db->query($sql);
}
public function __add(){
$this->CI =& get_instance();
$sql = "INSERT category SET description = '".$this->description."'";
$this->CI->db->query($sql);
}
public function __delete(){
$this->CI =& get_instance();
$sql = "DELETE FROM category WHERE id = ".$this->id;
$this->CI->db->query($sql);
}
}
now i have a class that fills the business object with data from models::method/s:
Code:
class Bop{ //business object proccessor :|
private $record; // <-- $row type array
private $obj; // business object
public function __init($record, &$object){
$this->obj =& $object;
$this->record = $record;
if(!is_object($this->obj)){
throw new Exception('Not an object');
}
if(!is_array($this->record)){
throw new Exception('Not an array');
}
return $this->fill();
}
private function fill(){
foreach($this->record as $attribute=>$value){
if($this->obj_has_atribute($attribute)){
$this->object->$attribute = $value;
}
}
return $this->object;
}
private function obj_has_atribute($attribute){
$object_vars = get_object_vars($this->obj);
return array_key_exists($attribute, $object_vars);
}
}
model:
Code:
class M_Categories extends Model {
/**
* @var object
*/
private $category;
public function __construct(){
parent::Model();
$this->load->library('bop');
}
public function __init(&$category){
$this->category =& $category;
}
public function __get_all($offset, $rows_per_page){
$row = array();
$sql = "SELECT * FROM category WHERE 1 ORDER BY id DESC LIMIT ".$offset.",".$rows_per_page;
$Q = $this->db->query($sql);
if($Q->num_rows() > 0){
foreach ($Q->result_array() as $row){
$category_copy = clone $this->category;
$categoryes_array[] = $this->bop->__init($row, $category_copy);
}
}
return $categoryes_array; // array of objects
}
public function __get($id){
$sql = "SELECT * FROM category WHERE id = ".$id;
$Q = $this->db->query($sql);
$row = $Q->row_array();
return $this->bop->__init($row, $this->category);
}
}
and finaly the controller:
Code:
class Categories extends Controller{
public function __construct(){
parent::__construct();
$this->load->model('m_categories');
}
public function index(){
$category = new Category();
$this->m_categories->__init($category);
$pg_data['container'] = $this->m_categories->__get_all($start,$rp);
$this->load->view('admin_view',$pg_data);
}
public function view(){
$category = new Category();
$this->m_categories->__init($category);
$pg_data['container'] = $this->m_categories->__get($this->uri->segment(3));
$this->load->view('admin_view',$pg_data);
}
public function edit(){
$category = new Category();
$category->id = $_POST['id'];
$category->description = $_POST['category'];
$category->__edit();
redirect('categories/index/');
}
public function addnew(){
if(strlen($_POST['category']) > 2 ){
$category = new Category;
$category->description = $_POST['category'];
$category->__add();
redirect('categories/index/');
}
redirect('categories/add/');
}
}
OK, does this make any sense, doing it like this?
Thanx
