I installed the Bed Edmund's Ion Auth login script and would like to make the functions global throughout my application.
I installed the code and it works great, but I'm having issues extending it. The ion Auth controller extends CI_Controller, so then in all my other controllers I extend Auth.
//Ion Auth Controller Class
class Auth extends CI_Controller {
and in a separate page:
//Home Page Controller Class, where I will be placing the login form
require_once("auth.php");
class Home extends Auth {
By doing this, I get the following PHP error:
Message: Assigning the return value of new by reference is deprecated
I read in the CodeIgniter docs that extended classes must now begin with MY_, so I tried that as well with no luck.
What am I doing wrong? Is my logic all wrong?
Do a CTRL-F for =& inside the Auth class source code (the one you installed) and replace every instance by =.
$foo =& new Bar();
is a deprecated syntax that was used in PHP4 but no longer in PHP5.
Related
I am working on a Yii1 old website. which is linked with some external PHP controllers. These external controllers provide some common functions that are used between 2 different applications. I have a function in Yii model that I want to use in one of the external PHP controller is there a way to do this? Currently, this is done by rewriting MySQL query in the PHP external controller but I don't want to follow this lame practice.
I found this link and I am able to access Yii externally but it's still not very helpful. Using Yii in 3rd-Party Systems
Here's a sample of my code:
namespace main\Helpers;
require_once('path/to/yii.php');
Class HelperClass {
public static function yiisupport($id){
// I am able to access Yii variables using
\Yii::app()->name
// But how to access the yii model or controller functions? I need something like the follwoing
$model = \Yii::app()->YiiModel::model()->findByPK($id);
}
}
Can anyone help?
You need to create Yii application first (using config file path) to access its models and controllers as it is mentioned in the documentation. Then you can access any model class in your external application just like you would access it in your Yii application, and you can use controller actions as below;
$controller = new \YOURController('ACTION_NAME');
$controller->ACTION_NAME();
If you have already imported models/controllers in your config file then you will not need to import any class but if you have not then you can import specific model/controller like below;
\Yii::import('application.models.MODEL_NAME');
\Yii::import('application.controllers.CONTROLLER_NAME');
Check the examples below;
namespace main\Helpers;
require_once('path/to/yii.php');
\Yii::createWebApplication('path/to/config.php');
Class HelperClass {
public static function yiisupport($id){
// Access Yii variables
\Yii::app()->name;
// Access yii model
$model = \YiiModel::model()->findByPK($id);
// Access yii controller and its actions
$controller = new \YiiController('actionCreate');
$controller->actionCreate();
}
}
Update:
As mentioned by #rob006 in the comment below that calling yii controller action outside Yii application is a bad idea, however if you still want to do that, there is a safer way which follows the Yii application lifecycle and this way access filters and beforeAction() will be triggered. So you can call controller action in a safer way as below;
\Yii::app()->runController('route/to/action');
I am trying to create an class inside the model directory. This class(eg:- Admin) exposes only the methods which makes sense to the controller.
The Admin class will do all the joins and stuffs internally on tables(using ORM) and prepares data which can be readily consumed by the controller.
I have created 15 files in the model directory each of them representing a table in my database using the ORM method.
Now I want to create to create an instance of table within the Admin classes' get_All() method. I have tried to use Kohana::factory() which was unavailable in my Admin class. I tried to create the instance using the 'new', but it ended in an error which says that the specified class is not found.
My class definition for Admin is as follows
<?php defined('SYSPATH') or die('No direct script access.');
class Model_Admin {
public function get_All()
{
$PD = new Model_PayPalData;
echo 'Success';
}
}
The error is:
ErrorException [ Fatal Error ]: Class 'Model_PayPalData' not found
APPPATH/classes/Model/admin.php
Please advice on how to deal with this situation.
Thanks for your attention
Seem like your class is not loaded. You can check this by viewing the declared classes
get_declared_classes();
If it is't there, make sure to include it, or add it to the Models directory, if needed without extending the ORM class.
Im current trying to learn more about the core of OpenCart and how its classes actually work. Im also trying to advance my OOP skills in general as Im still learning in that area, so perhaps theres something obvious that Im not seeing.
Im wondering how a controller file knows how to find the cart class (for example).
E.g.
In catalog/controller/checkout cart there is (obviously with code removed)
class ControllerCheckoutCart extends Controller {
public function index() {
$this->cart->update();
}
}
The Controller class can be found in system/engine/controller.php
update() can be found system/library/cart.
I assumed that in the controller.php there would be a link to the cart class, or an object made from it. (Im basing that on the use of $this->).
So how is the cart class actually found from the controller?
Thank you
Firstly, your ControllerCheckoutCart extends the Controller class, so this is the class we need to focus on. You can find this class in /system/engine/controller.php.
Inside this class, there are two magic methods we are interested in. The first is the __construct, where the "registry" class is loaded (found in /system/engine/registry.php if you're interested in picking that apart - it's very simplistic).
You can think of this as a lookup of all the classes the store uses, such as model files, library files and so on. In the construct, the registry is passed to the controller so it has a reference to it
public function __construct($registry) {
$this->registry = $registry;
}
The second and more important magic method is the __get method. This is called when a classes property doesn't exist, for you to handle it yourself if you wish to do so. OpenCart uses this to try and get the class with that key from the registry
public function __get($key) {
return $this->registry->get($key);
}
So $this->cart in any controller would try to get the object with the key cart from the registry. If you look at the index.php file you will see this is allocated in there
// Cart
$registry->set('cart', new Cart($registry));
ControllerCheckoutCart extends Controller, which means it inherits all the code in Controller which you are not seeing here. Some code in Controller, likely in Controller::__construct, is creating the $this->cart object. Example:
class Controller {
public function __construct() {
$this->cart = new Cart;
}
}
Since this constructor is inherited by all child classes, they construct their own $this->cart as well and have access to it in their own methods.
As mentioned by Jay Gilford, you need to register your newly added library class file in the index.php and/or admin/index.php (depending on if you are using it in catalog or admin)
$registry->set('yourlibraryclass', new YourLibraryClass());
so that upon system loading, Opencart knows that your class exists, then you can call all its functions by:
$this->yourlibraryfilename->function();
Please note that your library file name is normally the same as your class name, hence it is used in the example here.
After the change has been done in the index.php files, you need to logout and login again to see the changes.
class Api extends CI_Controller {
public function index()
{
show_error("You are not authorized to access this page", 401);
}
I have an api class class Api extends CI_Controller and an another
class myproject extends , now if want to use the functions of the api class in myproject class. how can i do . do i have to create an object of api class or just extend the myproject class with parent::api class . please help me as i m not good at oops.
details - i have made a class "class myproject extends ci_controller" which has different functions for user registration and login application. it all works fine using a single controller. But now want to use an api file.which has functions for login. how can i call those functions in api file from "class myproject"
You can create an helper, like the form one and use your method.
Then you can load it:
$this->load->helper('api');
First of all this looks more like a software design problem rather then a real code issue.
CodeIgniter is based on the MVC concept, and the Controller is only meant to build up the page.
You should probably make a library for all the API functionality, and have the controller calling that library and converting the data to JSON or whatever you want it to be converted to.
For myself i apply a simple rule:
Never write/call a Controller method that doesn't generate any form of output.
I recommend you to stick to the CodeIgniter way of coding, and not try to avoid them.
You should just need to extend the API class, as in
class Myproject extends Api { ... }
but there a few other issues, such as include_once("Api.php"), for example, in the Myproject.php file so that the subclass can "see" the superclass declaration. This thread on the codeigniter forums discusses these issues (sorry for the google webcache version but the forums are down for maintenance at the moment).
Firstly, you can't call a function of a controller in a controller unless and until you are inheriting it.
It's better that you create API class as library, instead of a controller.
If you have some restriction to have it as a controller only then use these APIs through curl calls.
But the best way is to have them in helper, if you are accessing them from your own server only.
I am building a series of forms, and I am trying to inherit the functionality of a parent Form class into all the forms. For example,
LeaveForm extends Form (Model)
LeaveFormController extends FormController
I am handling all the leave form specific stuff in LeaveFormController and LeaveForm.
In LeaveFormController constructor, I simply call the parent class constructor, then load the LeaveForm Model. And in FormController constructor, I load Form model.
My problem is, I get an error,
Cannot redeclare class form in Form.php
Have I got my architecture wrong? How do I handle this ?
check if the class has already been initialized like this:
if (!class_exists('classname'))
{
// ok fine create new instance now
}
Possibly when you $this->load->model('Form'), you manually included the models/form.php file?
In your leaveform.php model file, make sure you load the superclass model you extend using codeigniter's model loading mechanism instead of require or include. Codeigniter has a loader that keeps track of already-loaded files to avoid redeclaring classes, but you need to use $this->load to use it. It won't know about files loaded directly with include or require.
So at the top of leaveform.php, use this:
$CI =& get_instance(); $CI->load->model('Form');
This is not related, but you will have pain unless you namespace your CodeIgniter model classes the same way you namespace Controller classes.
Try using FormModel extends CI_Model {}; Instead of Form extends CI_Model {};