<?php
namespace Swissup\CheckoutSuccess\Model\Config\Source;

use Magento\Cms\Model\ResourceModel\Block\CollectionFactory;

class CmsBlock implements \Magento\Framework\Data\OptionSourceInterface
{
/**
* Block collection factory
*
* @var CollectionFactory
*/
protected $blockCollectionFactory;

/**
* Construct
*
* @param CollectionFactory $blockCollectionFactory
*/
public function __construct(CollectionFactory $blockCollectionFactory)
{
$this->blockCollectionFactory = $blockCollectionFactory;
}

/**
* Get options
*
* @return array
*/
public function toOptionArray()
{
$options = $this->blockCollectionFactory->create()->load()->toOptionArray();
array_unshift($options, ['value' => '0', 'label' => __('No')]);
return $options;
}
}