I was about making generate link of whole children. Because View doesnt allow to use Model. That's why i have to making own Helper to generate. then I use $this->Model->children($current_id, false, 'category'); but the problem i got error like this
Fatal error: Call to a member function children() on a non-object in
/user/app/View/Helper/my_helper.php on line 193
My code:
<?php
class MyHelperHelper extends AppHelper {
var $helpers = array('Html','Paginator','Tree');
function makechildrenlink($current_id, $category_id, $item_id) {
$this->Category->children($current_id, false, 'category');
}
}
?>
In your controller/component scope you need to fetch the data:
$this->loadModel('Category');
$categories = $this->Category->children($current_id, false, 'category');
$this->set(compact('categories')); // pass it down to the view
In the view you can now do with $categories whatever you want
echo $this->MyHelper->makeChildrenLink($categories);
for example.
And, as stated in the comments, your helper needs to be View/Helper/MyHelper.php!
Related
I was updating my project from laravel 4.2 to laravel 5.0. But, after I am facing this error and have been trying to solve it for the past 4 hours.
I didn't face any error like this on the 4.2 version. I have tried composer dump-autoload with no effect.
As stated in the guide to update, I have shifted all the controllers as it is, and made the namespace property in app/Providers/RouteServiceProvider.php to null. So, I guess all my controllers are in global namespace, so don't need to add the path anywhere.
Here is my composer.json:
"autoload": {
"classmap": [
"app/console/commands",
"app/Http/Controllers",
"app/models",
"database/migrations",
"database/seeds",
"tests/TestCase.php"
],
Pages Controller :
<?php
class PagesController extends BaseController {
protected $layout = 'layouts.loggedout';
public function getIndex() {
$categories = Category::all();
$messages = Message::groupBy('receiver_id')
->select(['receiver_id', DB::raw("COUNT('receiver_id') AS total")])
->orderBy('total', 'DESC'.....
And, here is BaseController.
<?php
class BaseController extends Controller {
//Setup the layout used by the controller.
protected function setupLayout(){
if(!is_null($this->layout)) {
$this->layout = View::make($this->layout);
}
}
}
In routes.php, I am calling controller as follows :
Route::get('/', array('as' => 'pages.index', 'uses' => 'PagesController#getIndex'));
Anyone please help. I have been scratching my head over it for the past few hours.
Routes are loaded in the app/Providers/RouteServiceProvider.php file. If you look in there, you’ll see this block of code:
$router->group(['namespace' => $this->namespace], function($router)
{
require app_path('Http/routes.php');
});
This prepends a namespace to any routes, which by default is App\Http\Controllers, hence your error message.
You have two options:
Add the proper namespace to the top of your controllers.
Load routes outside of the group, so a namespace isn’t automatically prepended.
I would go with option #1, because it’s going to save you headaches in the long run.
I would like to check if my user have filled certain fields in his profile before he can access any action of any controller.
For example
if(empty(field1) && empty(field2))
{
header("Location:/site/error")
}
In yii1 I could do it in protected\components\Controller.php in init() function
But in yii2 I'm not sure where to put my code. I cannot modify core files, but not sure what to do in backend of my advanced application to make it work.
I know I can user beforeAction() but I have too many controllers to do that and to keep track of every controller
In case you need to execute a code before every controller and action, you can do like below:
1 - Add a component into your components directory, for example(MyGlobalClass):
namespace app\components;
class MyGlobalClass extends \yii\base\Component{
public function init() {
echo "Hi";
parent::init();
}
}
2 - Add MyGlobalClass component into your components array in config file:
'components' => [
'MyGlobalClass'=>[
'class'=>'app\components\MyGlobalClass'
],
//other components
3 - Add MyGlobalClass into bootstarp array in config file:
'bootstrap' => ['log','MyGlobalClass'],
Now, you can see Hi before every action.
Please note that, if you do not need to use Events and Behaviors you can use \yii\base\Object instead of \yii\base\Component
Just add in config file into $config array:
'on beforeAction' => function ($event) {
echo "Hello";
},
Create a new controller
namespace backend\components;
class Controller extends \yii\web\Controller {
public function beforeAction($event)
{
..............
return parent::beforeAction($event);
}
}
All your controllers should now extend backend\components\Controller and not \yii\web\Controller. with this, you should modify every controller. I would go for this solution.
I believe you might also replace 1 class with another (so no change to any controller necessary), something like
\Yii::$classMap = array_merge(\Yii::$classMap,[
'\yii\web\Controller'=>'backend\components\Controller',
]);
See more details here: http://www.yiiframework.com/doc-2.0/guide-tutorial-yii-integration.html and I took the code from here: https://github.com/mithun12000/adminUI/blob/master/src/AdminUiBootstrap.php
you can put this in your index.php file. However, make sure you document this change very well as somebody that will come and try to debug your code will be totally confused by this.
Just i think this code on config file can help you:
'on beforeAction' => function ($event) {
// To log all request information
},
'components' => [
'response' => [
'on beforeSend' => function($event) {
// To log all response information
},
],
];
Or, https://github.com/yiisoft/yii2/blob/master/docs/guide/security-authorization.md use RBAC, to restrict access to controllers actions one at a time based on rules. Why would you want to restrict access to controller actions based on user fields is beyond me. You will not be able to access anything (including the login form) if you put a restriction there.
I'm trying to implement a RESTful api in Laravel, and I for my index I want to return all the tasks as json.
However, when I use
return Response::json(Task::all());
I get an error: "The Response content must be a string or object implementing __toString(), "boolean" given".
I get the same error when I use:
return Task::all();
I thought this was supposed to work? What am I doing wrong?
I double-checked to see if Task::all() actually returns anything, and it does. This code does work in another project, although on another server and maybe another php version?
Someone suggested to use toArray(), but I get the same result. Code:
<?php
class UserController extends BaseController {
public function index() {
$users = User::all();
$userArray = $users->toArray();
return Response::json($userArray);
}
}
Response::json function is expecting argument 1 to be an array. From the API:
json( string|array $data = array(), integer $status = 200, array $headers = array() )
Return a new JSON response from the application.
So you can't just pass through the results of your find, but instead use the toArray() function and pass that through instead:
$tasks = Task::all();
Response::json($tasks->toArray());
Edit ---
If you're working with a BLOB, then base64_encode it first. See this post.
Example:
base64_encode($user['image']);
I made a file in library/My/Utils/Utils.php. The content of the file is :
class My_Utils_Utils{
public function test(){
$this->_redirect('login');
}
}
This class is called from a layout; the problem is with the _redirect(); I get this error : The page isn't redirecting properly. My question is how call the _redirect() function from a class made by you in ZEND framework 1 .
Thanks in advance.
Use redirect() instead of _redirect(). Usage is:
$this->redirect(<action>, <controller>, <module>, <param>);
In your case $this->redirect('login'); should do the trick.
You can use the redirector action-helper, which you can get statically from the HelperBroker using:
// get the helper
$redirectHelper = Zend_Controller_Action_HelperBroker::getStaticHelper('redirector');
// call methods on the helper
$redirect->gotoUrl('/some/url');
It should be noted, however, that the layout is considered part of the view layer. Typically, any checks that result in a redirect should probably take place earlier in the request dispatch-cycle, typically in a controller or in a front-controller plugin.
The _redirect function is provided by the class Zend_Controller_Action. You can fix this in two ways :
Extend Zend_Controller_Action and use _redirect
class My_Utils_Utils extends Zend_Controller_Action {
public function test(){
$this->_redirect('login');
}
}
in layout:
$request = Zend_Controller_Front::getInstance()->getRequest();
$response = Zend_Controller_Front::getInstance()->getResponse()
$util = new My_Utils_Utils($request, $response); // The constructor for Zend_Controller_Action required request and response params.
$util->test();
Use gotoUrl() function Zend_Controller_Action_Helper_Redirector::gotoUrl()
$redirector = new Zend_Controller_Action_Helper_Redirector();
$redirector->gotoUrl('login');
//in layout :
$util = new My_Utils_Utils();
$util->test();
I have a CodeIgniter application, but one of my controllers must call a data processing function that I have also written myself. The only problem is I can't seem to figure out how to do this. Looking through the user guide it seems that I should put my function inside the class declaration, and prefix it with an underscore (_) so that it cannot be called via the url. However, this is not working. Here's an example of what I mean:
<?php
class Listing extends Controller
{
function index()
{
$data = "hello";
$outputdata['string'] = _dprocess($data);
$this->load->view('view',$outputdata);
}
function _dprocess($d)
{
$output = "prefix - ".$d." - suffix";
return $output
}
}
?>
The page keeps telling me I have a call to an undefined function _dprocess()
How do I call my own functions?
Thanks!
Mala
Edit:
I've gotten it to work by placing the function outside of the class declaration. Is this the correct way of doing it?
This line is creating problem for you:
$outputdata['string'] = _dprocess($data);
Replace with:
$outputdata['string'] = $this->_dprocess($data);