Fixed product_id request to read from get or post parameters and template array product key

Author: givanz

app/controller/cart/compare.php

@@ -91,7 +91,7 @@ function index() {
 	}
 
 	private function action($action) {
-		$productId = (int)($this->request->request['product_id'] ?? false);
+		$productId = (int)($this->request->get['product_id'] ?? $this->request->post['product_id'] ?? false);
 
 		if ($productId) {
 			$compare = sess('compare');

app/template/cart/compare.tpl

@@ -8,7 +8,7 @@ import(common.tpl)
 
 @compare-product|before = <?php
 
-$products  = $this->products['products'] ?? [];
+$products  = $this->products['product'] ?? [];
 $_default = (isset($vvveb_is_page_edit) && $vvveb_is_page_edit ) ? [0 => ['product_id' => 1, 'product_id' => 1, 'image' => '#']] : false;
 $products = empty($products) ? $_default : $products;