Call to a member function isLoggedIn() on null in Magento/Backend/App/AbstractAction.php on line 252

Tu_Nguyen · December 29, 2015, 5:22pm

Fatal error: Call to a member function isLoggedIn() on null in D:\xampp\htdocs\m2ce\vendor\magento\module-backend\App\AbstractAction.php on line 252

I got this problem when save form. Only last step to save data. Seem object not creat or instance or something i don’t know
I already added _isAllowed method for controller edit but still not fix this
What i have done so far in link below if you want to see code

github.com

mrtuvn/m2ce.dev/blob/8c6b9022440460e43230c2cafceee9adee4ce1f4/app/code/Tuna/BannerSlider/Controller/Adminhtml/Banner.php

<?php

namespace Tuna\BannerSlider\Controller\Adminhtml;

use Tuna\BannerSlider\Controller\Adminhtml\AbstractAction;

abstract class Banner extends AbstractAction
{


    protected function initBanner()
    {
        $bannerId = (int) $this->getRequest()->getParam('banner_id');
        $banner   = $this->_bannerFactory->create();
        if ($bannerId) {
            $banner->load($bannerId);
        }

        //$this->_coreRegistry->register('banner', $banner); DUPLICATE
        return $banner;

This file has been truncated. show original

Anyone have suggestions to get throught this

dmitrii_fediuk · December 29, 2015, 5:30pm

github.com

magento/magento2/blob/2.0.0/app/code/Magento/Backend/App/AbstractAction.php#L252


/**
 * Check url keys. If non valid - redirect
 *
 * @return bool
 */
public function _processUrlKeys()
{
    $_isValidFormKey = true;
    $_isValidSecretKey = true;
    $_keyErrorMsg = '';
    if ($this->_auth->isLoggedIn()) {
        if ($this->getRequest()->isPost()) {
            $_isValidFormKey = $this->_formKeyValidator->validate($this->getRequest());
            $_keyErrorMsg = __('Invalid Form Key. Please refresh the page.');
        } elseif ($this->_backendUrl->useSecretKey()) {
            $_isValidSecretKey = $this->_validateSecretKey();
            $_keyErrorMsg = __('You entered an invalid Secret Key. Please refresh the page.');
        }
    }
    if (!$_isValidFormKey || !$_isValidSecretKey) {
        $this->_actionFlag->set('', self::FLAG_NO_DISPATCH, true);

github.com

magento/magento2/blob/2.0.0/app/code/Magento/Backend/App/AbstractAction.php#L91


 */
protected $_formKeyValidator;


/**
 * @param \Magento\Backend\App\Action\Context $context
 */
public function __construct(Action\Context $context)
{
    parent::__construct($context);
    $this->_authorization = $context->getAuthorization();
    $this->_auth = $context->getAuth();
    $this->_helper = $context->getHelper();
    $this->_backendUrl = $context->getBackendUrl();
    $this->_formKeyValidator = $context->getFormKeyValidator();
    $this->_localeResolver = $context->getLocaleResolver();
    $this->_canUseBaseUrl = $context->getCanUseBaseUrl();
    $this->_session = $context->getSession();
}


/**
 * @return bool

May be you did not call the \Magento\Backend\App\AbstractAction constructor or may be $context->getAuth(); returned not-an-object.

Tu_Nguyen · December 30, 2015, 5:32am

My class AbstractAction not inject Authorization. I thought this class extend \Magento\Backend\App\AbstractAction (have property _auth) so i don’t have to register this
But object still return null
I have no idea why

dmitrii_fediuk · December 30, 2015, 11:35am

Where exaclty do you call the \Magento\Backend\App\AbstractAction::__construct method?

Tu_Nguyen · December 30, 2015, 6:29pm

This class in file below extend Magento/Backend/App/AbstracAction
Another class such as Banner , Sllider will extends this class

AbstractAction

I already update some line code in abstractaction but problem not fixed

Tu_Nguyen · December 31, 2015, 3:14am

@dmitrii_fediuk Problem fixed now. But i get problem with my grid. order column not render right by order
I already set by number but not work. Do you have any suggestions ? I use ui_components

dmitrii_fediuk · December 31, 2015, 3:20am

How does it related to the topic?

vaibhav_khokhar · February 3, 2017, 9:16am

Follow the below steps:

Go to your module controller file where control is reaching( which extends \Magento\Backend\App\Action).
2.Append below code inside its constructor

public function __construct(…
\Magento\Backend\App\Action\Context $context)
{
…
parent::__construct($context);
}