Magento – Magento2: How to get config variable in block.php

blocksconfigurationmagento2

I want to get the value of config variable in my custom block.php file.

Can somebody help me in this?

So far, I did following this in my block file.

public function __construct(
     \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
     \Magento\Store\Model\StoreManagerInterface $storeManager
)
{
    $this->_scopeConfig = $scopeConfig;
    $this->_storeManager = $storeManager;
}

$this->_scopeConfig->getValue('carriers/freeshipping/free_shipping_subtotal', \Magento\Store\Model\ScopeInterface::SCOPE_STORE);

But I'm still not getting the value and showing error

( ! ) Fatal error: Uncaught Error: Call to a member function
dispatch() on null in
D:\wamp64\www\deboomhut0710\lib\internal\Magento\Framework\View\Element\AbstractBlock.php
on line 644 ( ! ) Error: Call to a member function dispatch() on null
in
D:\wamp64\www\deboomhut0710\lib\internal\Magento\Framework\View\Element\AbstractBlock.php
on line 644

Best Answer

The error you're getting is because your block needs to extend at least Magento\Framework\View\Element\AbstractBlock which is not the case.

It should look like this:

namespace Vendor\Module\Block;

use Magento\Framework\View\Element\AbstractBlock;

class MyBlock extends AbstractBlock {

    public function __construct(
     \Magento\Framework\View\Element\Context $context,
     \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
     \Magento\Store\Model\StoreManagerInterface $storeManager,
     array $data = []
    )
    {
        $this->_scopeConfig = $scopeConfig;
        $this->_storeManager = $storeManager;
        parent::__construct($context, $data);
    }
}

Related Solutions

Magento 2 – How to Call Custom phtml File in Another phtml File

Replace below code with your block code

namespace Lapisbard\General\Block;
use Magento\Customer\Model\Session;

class CustomerAccount extends \Magento\Framework\View\Element\Template {
    public function __construct(\Magento\Framework\View\Element\Template\Context $context,
        Session $customerSession
    )
    {
        parent::__construct($context);
        $this->_customerSession = $customerSession;
    }
    public function isCustomerLoggedIn() {
        return $this->_customerSession->isLoggedIn();
    }
}

Then you can use it

echo $this->getLayout()->createBlock("Lapisbard\General\Block\CustomerAccount")->setTemplate("Lapisbard_General::customer_account.phtml")->toHtml();

Magento2 Blocks Error – Fatal Error Call to a Member Function Dispatch While Calling Block in Magento 2

The problem is that your constructor does not match the parent class constructor.

To fix that you need to update your constructor:

public function __construct(
    \Magento\Framework\View\Element\Template\Context $context,
    \Magento\Customer\Model\Session $customerSession,  
    \Magento\Framework\ObjectManagerInterface $objectManager,
    array $data = []
 ) {
    parent::__construct($context, $data);
    $this->customerSession = $customerSession;
    $this->_objectManager = $objectManager;
  }

Don't forget to flush the var/cache and var/generation after your changes.

Best Answer

Related Solutions

Magento 2 – How to Call Custom phtml File in Another phtml File

Magento2 Blocks Error – Fatal Error Call to a Member Function Dispatch While Calling Block in Magento 2

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