Divi FilterGrid - WooCommerce Add to Cart Button w/quantity Field

functions.php

// DFG CUSTOM CONTENT FILTER
function dpdfg_after_read_more_custom_content($content, $props){
  // Apply this only to Divi FilterGrid modules with class "products" set in the module's Advanced tab
	if (isset($props['module_class']) && $props['module_class'] === 'products') {
		
		global $product;
		
		if ( $product && $product->is_type( 'simple' ) && $product->is_purchasable() && $product->is_in_stock() && ! $product->is_sold_individually() ) {
			// Get the necessary classes
			$class = implode( ' ', array_filter( array(
				'button et_pb_button',
				'product_type_' . $product->get_type(),
				$product->is_purchasable() && $product->is_in_stock() ? 'add_to_cart_button' : '',
				$product->supports( 'ajax_add_to_cart' ) ? 'ajax_add_to_cart' : '',
			) ) );

			// Embedding the quantity field to Ajax add to cart button
			$html = sprintf( '%s<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>',
				woocommerce_quantity_input( array(), $product, false ),
				esc_url( $product->add_to_cart_url() ),
				esc_attr( isset( $quantity ) ? $quantity : 1 ),
				esc_attr( $product->get_id() ),
				esc_attr( $product->get_sku() ),
				esc_attr( isset( $class ) ? $class : 'button' ),
				esc_html( $product->add_to_cart_text() )
			);
    }
		if(!empty($html)) {
			return $html;
		}
	}
}

add_filter('dpdfg_after_read_more', 'dpdfg_after_read_more_custom_content', 10, 2);

function dfg_quantity_fields(){
  ?>
	<script type='text/javascript'>
		jQuery(function($){
			// Update data-quantity
			$('.dp-dfg-item').on('click input', 'input.qty', function() {
				$(this).parent().parent().find('a.ajax_add_to_cart').attr('data-quantity', $(this).val());

				// (optional) Removing other previous "view cart" buttons
				$(".added_to_cart").remove();
			});
		});
	</script>
  <?php
}

add_action( 'wp_footer' , 'dfg_quantity_fields' );