How do I call a function from a component from a view? (ctp file)
Is that even a good practice to do that?
Thanks,
Tee
i suggest wrapping the component methods in a helper, and then using the usual route to access the helper.
For most components you could use something like:
App::import('Component', 'YourComponent');
$theComponent = new YourComponent();
$theComponent->yourMethod();
However, components are meant to share functionality used by controllers, so usually you should avoid calling components from views.
ALL IS POSSIBLE!
Component:
function initialize(&$controller){
$this->controller =& $controller;
$this->controller->set('YourComponent', new YourComponent());
}
View:
<?php $YourComponent->doAction() ... ?>
My opinion is it is not good practice to do that. Think of a view as something designers would work with. You want to keep your code in the models and controllers if at a possible. If it has to do with reusable view content, consider moving the controller to an element or a helper, as that is what they are intended for.
If you provide more details, we can be more specific to how to implement something if you already have a code base we can reference.
In cakephp 3
$config = new \Cake\Controller\ComponentRegistry();
$CustomComponent = new \App\Controller\Component\CustomComponent ($config);
Related
i have a controller PostmustController which doesn't have any models naming Postmust. it will load a model named Post how can i do it in cakePHP.
Learned and solved it. And there is a anotherway.
You can also use this
Controller::loadModel('Post');
You can learn the detail from the following link.
Uses following array in your controller it will automatically load models in your controller.
public $uses = array('Post');
I am using Cakephp 2.3 , i want to perform lots of common calculation in my several controllers. so i write those functions in my appcontroller and i cached some datas..
but what happens is my appController will become fatty.. so i create some component to perform these actions.. i dont know my approach is right or not..? please suggest..
i want to use cache in my component, i tried this code. but nothing is cached..
public $helpers =array('Cache');
and
$result = Cache::read('fm_data', 'long');
if (!$result) {
$result =
$this->TFmStation->find('all',array('contain'=>array('TLocation',
'TLanguage','TMediaOrg','TContactPerson',
'TAddress','TFmProgram'=>array('TTargetGroup'))));
Cache::write('fm_data', $result, 'long');
}
return $result;
please help me to how to use cache in component
how to effectively use component class in cakephp in the case of more common functions in the application.. when i write these functions in appController it load all the functions so according to memory prespective, how to effectively use component
Model TFmStation is best place to have the above logic. Components are there for generic functionality like UploadComponent, EmailComponent, RecaptchaComponent etc. If your logic part have something to do with model, then it should go into that model.
A Model can be called from AppController.php in a similar fashion as you calling your Component.
Morning guys,
So this is my first time developing a plugin for CakePHP. Here's what I am doing in startUp of the component.
//component
function startUp(&$controller){
//....
if($render){
$controller->render("return", "ajax");
}
}
By default render will look at app/views/<controllers>/return.ctp and app/views/layouts/ajax for this render call.
Is there anyway that I can give a directive to render from app/my_plugin/views/awesome_stuffs/return.ctp and app/my_plugin/views/layout/ajax.ctp instead?
I believe the third param of Controller::render($file, $layout, $file) could do the job, but is there any better Cake way of doing things?
Plus, is that considered a good practice to take over controller's rendering function like that?
One way is to call the PLUGIN controller/action URL in your AJAX call, instead of the main app controller/action URL.
ex:
instead of:
http://domain.com/controller/action
you call:
http://domain.com/my_plugin/controller/action
When you do it this way, the plugin views & layouts are called automagically. See:
http://book.cakephp.org/view/1118/Plugin-Tips
http://book.cakephp.org/view/1115/Plugin-Views
Otherwise, the only way I know of is manually setting paths as you mentioned or controller-wide via:
var $viewPath = 'path/to/plugin/views/';
var $layoutPath = 'path/to/plugin/layouts/';
You might want to try setting $this->view to the plugin dotted view file you want to render.
add to your source
$controller->plugin = "pluginname";
I wrote some function in app_helper file. now i need to call that function in my controller
how i can do this in CAKEPHP
You can't.*
If your functions are so universal as to be used outside of views, create them in bootstrap.php or make a custom library/class in the libs/ directory.
* You can load anything anywhere using App::import('Helper', 'NameOfHelper') or ClassRegistry::init, but you really shouldn't. The point of MVC separation is to keep your app well organized.
App::uses('HtmlHelper', 'View/Helper');
$yourTmpHtmlHelper = new HtmlHelper(new View());
Is finally the version which works with Cakephp 2.3
You can use the helper in Controller as bellow
App::uses('YourHelper', 'View/Helper');
class yourController extends AppController {
public function index(){
$yourHelper = new YourHelper(new View());
$yourHelper->yourMethod();
}
}
App::import('Helper', 'Forum.Common');
$commonHelper = new CommonHelper(new View())
If you want to use some common functions in all of your controllers like the helper does for views,
you must use Components
http://book.cakephp.org/2.0/en/controllers/components.html
rather using App::import('Helper', 'NameOfHelper'), this keeps the MVC standard correct and your app well organized.
you can call helper function this way. suppose you helper is DemoHelp
and call to helper function call_function() then you can use this.
App::import('Helper', 'DemoHelp');
$DemoHelp = new DemoHelpHelper();
$DemoHelp->call_function()
You can use Component, they are stored in Controller/Component/
For example if you have Controller/Component/SomeComponent.php
and want call it on the fly in single action inside controller:
$this->SomeComponent = $this->Components->load('SomeComponent');
$this->SomeComponent->someFunction();
In my cakephp application i need to use my controller in helper.php. Its not working. will any one explain it with little syntax?
I really hate thinking that code can tell me how to think instead of me telling it what to do ... anyway ... here is an example for loading the controller rendering the page, and it can load any controller inside the helper.
<?Php
class HelperNameHelper extends AppHelper{
private $controller;
public function __construct(View $view, $settings = array()) {
parent::__construct($view, $settings);
$this->controller=$this->loadController();
}
protected function loadController($name=null){
if (is_null($name)) $name=$this->params['controller'];
$className = ucfirst($name) . 'Controller';
list($plugin, $className) = pluginSplit($className, true);
App::import('Controller', $name);
$cont = new $className;
$cont->constructClasses();
$cont->request=$this->request;
return $cont;
}
}
EDIT: just realiced this is such an old post :( ... this is working in cakephp 2.2.3
Helpers are not designed to have access to the controller. If you're trying to access the controller you may want to rethink your application design.
I actually had this same problem myself. I have a CakePHP 1.1 application where I was accessing the controller by passing the name of the controller as a parameter to the view. After trying to upgrade the code to work with 1.2 I realized that this was bad design. It was my first experience with CakePHP and MVC, so I chalked that up as a lesson learned.
MVC requires some up-front design to make sure that you're putting your functions in the right places (controller, model, or view).
(P.S. You can also try the #cakephp channel on irc.freenode.net)
Its an MVC.
You shouldn't use a Controller in your helper, rather use your helper in your controller.
Why would wan't to do that in the first place.
Read this:
http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller