Enable disabled functionality is not working in magento 2

Question

I am trying to enable/disable Magento 2 from admin general setting. I created an option to disabled / enabled module from backend> configuration> module> enable (Yes/No)

when I tried to disabled module functionality still working. Is it a database related issue or another issue.

Secondly, I tried to get check in coding whether module enable or not by followed below steps

Index controller :-

<?php 
namespace Vender\Modulename\Controller\Index;
use Magento\Framework\App\Action\Context;
class Index extends \Magento\Framework\App\Action\Action 
 {
 protected $resultJsonFactory;
 protected $scopeConfig;
 public function __construct(Context $context, 
 \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
 \Magento\Framework\Controller\Result\JsonFactory $resultJsonFactory)
 {
 $this->resultJsonFactory = $resultJsonFactory;
 //$this->_helper = $helper;
 $this->scopeConfig = $scopeConfig;
 parent::__construct($context);
 }
 protected function helper($className) 
 {
 return $this->_objectManager->get($className);
 }
 protected function getUrl($path) 
 {
 return $this->_objectManager->get('Magento\Framework\UrlInterface')->getUrl($path);
 }
 public function execute()
 {
 //die('dfsd');
 //$topTel = $this->_helper->getConfig('dynamicpdf/general/topTel');
 //$_thishepler = $this->_helper('Vender\Modulename\Helper\Data');
 //$isEnabled = $helper->getStoreConfig('VenderMOdulename/general/enabled');
 //print_r($isEnabled); die;
 $helper = \Magento\Framework\App\ObjectManager::getInstance()->get('Vendor\modulename\Helper\Data');
 echo "<pre>";
 //print_r($helper);
 if($helper->isEnable()){
 }
 // My code
 }
}

Helper> Data.php

namespace Vendor\Modulename\Helper;
use Magento\Framework\App\Helper\AbstractHelper;
use Magento\Framework\App\Helper\Context;
use Magento\Store\Model\ScopeInterface;
class Data extends AbstractHelper
{
 protected $context;
 public function __construct(Context $context)
 {
 $this->context = $context;
 parent::__construct($context);
 }
 public function isEnable()
 {
 return $this->scopeConfig->getValue('modulename/general/enable', ScopeInterface::SCOPE_STORE);
 }
}

• Abhishek Panchal: Can you please add the code of System.xml file ?

Answer 1

If you enabled/disabled one or more modules, then you will need to run magento setup:upgrade to update the database schema.

Try running commands:

php bin/magento setup:upgrade
php bin/magento c:c

Answer 2

Use below code in your Index Controller file.

protected $helperData;
public function __construct(
 \Vendor\Modulename\Helper\Data $helperData
) {
 $this->helperData = $helperData;
}

then use below code to call your helper function.

$this->helperData->isEnable();

EDIT: in your helper file you didn't declare variable

protected $scopeConfig;
public function __construct(
 \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
)
{
 $this->scopeConfig = $scopeConfig;
}

This is the proper way to call helper function/method instead using Object Manager.

Don't forget to flush cache.

• deepak: if($this->helperData->isEnable()){ echo "enabled"; }else{ echo "not enbaled"; }
• deepak: every time echo not enable
• deepak: I thing data is not coming from helper > Data.php
• deepak: I have seen every time it print 1
• Abhishek Panchal: check my updated answer and edit your helper file to declare scopeConfig variable