class-woo-product-stock-alert-frontend.patch

--- woocommerce-product-stock-alert/classes/class-woo-product-stock-alert-frontend.php	2017-11-12 15:28:59.000000000 -0700
+++ woocommerce-product-stock-alert-mod/classes/class-woo-product-stock-alert-frontend.php	2017-11-12 15:34:41.000000000 -0700
@@ -227,10 +227,25 @@
 		$dc_settings = $this->dc_plugin_settings;
 		
 		if($product) {
+			if($product->is_type('composite')) {
+				$manage_stock = false;
+				$composited_products = $product->get_composite_data();
+				foreach($composited_products as $component) {
+					$wc_product = new WC_Product($component['default_id']);
+					$composited_product_quantity = $wc_product->get_stock_quantity();
+
+					if(!$wc_product->is_in_stock()) {
+						$manage_stock = $wc_product->managing_stock();
+						$stock_quantity = $wc_product->get_stock_quantity();
+						break;
+					}
+				}
+			} else {
 			$managing_stock = $product->managing_stock();
 			$stock_quantity = $product->get_stock_quantity();
 			$manage_stock = $product->get_manage_stock();
 			$stock_status = $product->get_stock_status();
+			}
 			
 			if( isset($stock_quantity) && $manage_stock ) { 
 				if($managing_stock && $stock_quantity <= (int)get_option( 'woocommerce_notify_no_stock_amount' )){ 
@@ -250,6 +265,8 @@
 						$display_stock_alert_form = true;
 					}
 				}
+			} else if($product->is_type('composite')) {
+
 			}
 		}