How to create custom variable programatically for template in magento 2

Question

With the all searching so far I have found that we can add custom variable using this:

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$model = $objectManager->get('Magento\Variable\Model\Variable')->loadByCode('custom-variable-code');
$plain_value = $model->getPlainValue();

but I have no idea where to add this and what to do with plain value. Please let me know how can I create custom variable which I can use in my email template globally. Thanks

Answer 1

To add a custom variable, please follow below admin path.

1) Login in to admin.

2) go to SYSTEM -> Custom Variable (under "Other setting").

3) Click "Add New Variable" button.

4) Enter Variable Code,Variable Name,Variable HTML Value [optional], Variable Plain Value[optional]

5) Click "Save" button.

Answer 2

In your custom module use install script to create progrmatically:

use Magento\Variable\Model\VariableFactory;

class InstallData implements InstallDataInterface
{

protected $varFActory;

public function __construct(VariableFactory $varFactory)
{
    $this->varFActory = $varFactory;
}

/**
 * {@inheritdoc}
 */
public function install(
    ModuleDataSetupInterface $setup,
    ModuleContextInterface $context
) {

    $variable = $this->varFActory->create();
    $data = [
        'code' => '',
        'name' => '',
        'html_value' => '',
        'plain_value' => '',

    ];
    $variable->setData($data);
    $variable->save();          
}

}