I need function (literally i need the $data) from this model in whole project.
when i call in some controller $data = $this->multi_language_model->multi_lang(); it work fine. But is it possible to call in one place, so I can use in every controller and view.
I autoload the model
$autoload['model'] = array('multi_language_model');
class Multi_language_model extends MY_Model
{
public function __construct() {
parent::__construct();
}
public function multi_lang() {
$data['menu_delivery'] = $this->lang->line('menu_delivery');
$data['menu_quotations'] = $this->lang->line('menu_quotations');
$data['menu_customer_service'] = $this->lang->line('menu_customer_service');
return $data;
}
}
Put this helper function in your any loaded helper:
function get_multi_lang(){
$CI = & get_instance();
$data = array();
$CI->load->helper('language');
$CI->lang->load('menu','english');
$data['menu_delivery'] = $CI->lang->line('menu_delivery');
$data['menu_quotations'] = $CI->lang->line('menu_quotations');
$data['menu_customer_service'] = $CI->lang->line('menu_customer_service');
return $data;
}
Controller:
class Yourclassname extends CI_Controller {
var $menu_delivery = "";
var $menu_quotations = "";
var $menu_customer_service = "";
function __construct() {
parent::__construct();
$data = get_multi_lang();
$this->menu_delivery = $data['menu_delivery'];
$this->menu_quotations = $data['menu_quotations'];
$this->menu_customer_service = $data['menu_customer_service'];
}
public function index(){
echo $this->menu_delivery.'<pre>';
echo $this->menu_quotations.'<pre>';
echo $this->menu_customer_service.'<pre>';die;
}
}
If you dont want to use helper function then copy helper function lines in controller __construct() [replace $data to $this->]so direct use global variables do same in model and for view pass this variable via controller
I don't know how codeigniter works but maybe you could do this method static and use it like:
class Multi_language_model extends MY_Model
{
private static $data = [];
public function get_multi_lang()
{
return [
'menu_delivery' => $this->lang->line('menu_delivery'),
'menu_quotations' => $this->lang->line('menu_quotations'),
'menu_customer_service' => $this->lang->line('menu_customer_service'),
];
}
public static function multi_lang()
{
if (empty(self::$data)) {
self::$data = (new self)->get_multi_lang();
}
return self::$data;
}
}
Then, whenever you need it, you can use $data = Multi_language_model::multi_lang();
However, I don't see anything wrong in injecting it from the container, wherever you need it. Doing so would be much easier to build tests.
BTW you don't need to overwrite the class constructor if there are no custom parameters set to the extending class. You can safely remove:
public function __construct() {
parent::__construct();
}
Related
I have this code and i´m trying to use a object
<?php
class Controller {
public $_view;
public function __construct() {
$this->_view = new View();
return $this->_view;
}
}
class View {
public $_params = array ();
public function set_params($index_name,$valores) {
$this->_params[$index_name] = $valores;
}
public function get_param($index_name){
return $this->_params[$index_name];
}
}
?>
i would like to do this:
class Index extends Controller {
public function index() {
$model = Model::get_estancia();
$usuarios = $model->query("SELECT * FROM usuarios");
$this->_view->set_params(); // cant be used.
$this->load_view("index/index");
}
}
i would like to use the set_parms function.
but i can't see the View Function, then i can not use.
Can someone explain and advise me a good and safe way?
Correction from Phil: If a __construct() method isn't found, PHP will revert to legacy constructor syntax and check for a method with the same name as the object. In your case the method index() is being treated as the constructor, and is preventing the parent's constructor from loading the view object into the $_view property.
You can force a class to inherit a parent's constructor by defining __construct() in the child and calling the parent's constructor:
public function __construct() {
parent::_construct();
}
Here is the fixed code:
<?php
class Controller {
public $_view;
public function __construct() {
$this->_view = new View();
return $this->_view;
}
}
.
class View {
public $_params = array ();
public function set_params($index_name,$valores) {
$this->_params[$index_name] = $valores;
}
public function get_param($index_name){
return $this->_params[$index_name];
}
}
.
class Index extends Controller {
public function __construct() {
parent::__construct();
}
public function index() {
$model = Model::get_estancia();
$usuarios = $model->query("SELECT * FROM usuarios");
$this->_view->set_params(); // cant be used.
$this->load_view("index/index");
}
}
I am trying to create a new model object from my mvc controller but the page doesn't generate. Is there any reason why I can't do this? Surely I should be able to create an object inside an existing one?
Sorry to be so simplistic, and I know I sound like an idiot, but I'm not sure how to explain what I am doing wrong.
class controller_landing extends controller_base
{
public function __construct($get,$post)
{
parent::__construct($get,$post);
$this->model = new model_landing; <-----problem line here
}
}
abstract class controller_base
{
//store headers
protected $get;
protected $post;
//store layers
protected $view;
protected $model;
protected function __construct($get,$post)
{
//store the header arrays
$this->get = $get;
$this->post = $post;
//preset the view layer as an array
$this->view = array();
}
public function __destruct()
{
//extract variables from the view layer
extract($this->view);
//render the view to the user
require_once('view/'.$this->get['controller'].'_view.php');
}
}
class model_landing extends class_mysqli
{
public function __construct
{
echo "landing model";
}
}
class class_mysqli
{
public function __construct
{
echo "mysqli";
}
}
I don´t know, but I think you are missing brackets.
There
public function __construct
{
echo "landing model";
}
should be
public function __construct()
{
echo "landing model";
}
So I was trying to make a CRUD for my app. I have setup a controller, like this:
class Clients extends CI_Controller {
public function __construct() {
parent::__construct();
session_start();
$this->c = new Client();
$this->u = new User();
}
function index() {
$data['current_view'] = 'client_view';
$data['header'] = 'Меню клиентов';
$data['clients'] = $this->getClients();
$this->load->view('main_view',$data);
}
function getClients() {
$this->u->where('username',$_SESSION['username'])->get();
$c = $this->c->where('user_id',$this->u->id)->get();
return $c;
}
function delClient() {
$this->c->where('client_id', $this->uri->segment(3))->delete();
$this->c->skip_validation()->save();
$this->index();
}
}
However, when I'm trying to perform a delete on a client, i get a db error:
You must use the "set" method to update an entry.
Filename: C:\OpenServer\domains\localhost\system\database\DB_active_rec.php
Line Number: 1174
What might be the cause of this? I found a similar question here, but I don't think that's the case.
EDIT: Client model:
class Client extends DataMapper {
public $has_one = array('user');
public function __construct($id = NULL) {
parent::__construct($id);
}
}
you have not passed the uri segment to the function delClient() and this is your model right...
function delClient($id) {
//$id is the value which you want to delete
$this->c->where('client_id', $id)->delete();
$this->c->skip_validation()->save();
$this->index();
}
I have this controller in Code Igniter application. A value is initialized in the constructor.
class Cat extends CI_Controller {
private $data = array();
public function __construct() {
parent::__construct();
$this->data['sound'] = "meow";
}
public function index() {
$this->load->view('myCatPage', $data);
}
}
The view "views/myCatPage.php" looks like this. It is simple.
<?= $sound ?>
Why does PHP note this error?
Message: Undefined variable: sound
I thought I sent this variable as a key in the array ($data) I sent into the view.
I have tried
$this->load->view('myCatPage', $this->data);
but that strangely fails too.
class Cat extends CI_Controller {
var $data = array();
public function __construct() {
parent::__construct();
$this->data['sound'] = "meow";
}
public function index() {
$this->load->view('myCatPage', $this->data);
}
}
In the index file i have _autoload and load the libs and then i explode the url to get the wanted contoller and the model if exists. In the view i can see the model __construct() so the model is loaded but if i try to use $this->model->test(); i get
Call to a member function test() on a non-object
http://site.com/about
$this->request = about;
$controller = new $this->request;
$controller->loadModel($this->request);
Everething work ok
*Here is the Main controller *
class Conroller {
function __construct() {
// echo 'Main controller<br />';
$this->view = new View();
}
public function loadModel($name) {
$path = 'models/'.$name.'_model.php';
if (file_exists($path)) {
require 'models/'.$name.'_model.php';
$modelName = $name . '_model';
// **here i make the object**
$this->model = new $modelName();
}
}
}
Here is the About model
class about_model{
function __construct() {
echo 'test';
}
public function test() {
$test = 'test one';
}
}
Here is the About Conroller
class About extends Conroller {
function __construct(){
parent::__construct();
$this->model->test();
$this->view->render('/about');
}
}
You will need to call loadModel in your About controller before you refer to the model:
class About extends Conroller {
function __construct(){
parent::__construct();
$this->loadModel('about');
$this->about->test();
}
}