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up vote 0 down vote favorite

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

share|improve this question
up vote 1 down vote

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);
    }
}
share|improve this answer
    
Thanks for your reply. Error has gone but still not able to get the config value. I want to get the minimum amount set for free shipping at backend. – Deeps Nov 4 '16 at 12:06
    
@Deeps well your code to get the config value is totally valid. I'm not sure why it doesn't work – Raphael at Digital Pianism Nov 4 '16 at 12:16
    
@Deeps are you sure you saved the configuration for the right store ? – Raphael at Digital Pianism Nov 4 '16 at 12:17
    
Can you please post your block file here ? @Deeps – Keyur Shah Nov 4 '16 at 12:31
up vote 0 down vote

Please use below code :

const SUBTOTAL = 'carriers/freeshipping/free_shipping_subtotal';

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

}
public function getSubtotal() {
 $storeScope = \Magento\Store\Model\ScopeInterface::SCOPE_STORE;
 return $this->scopeConfig->getValue(self::SUBTOTAL, $storeScope); //you get your value here
}

Then in your template file try to get : $this->getSubtotal();

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