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Как исправить ошибки Undefined index в контроллере

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Добрый день, подскажите!

Появляется ошибка:

Undefined index: name in /catalog/controller/module/cart.php

при добавлении товара в корзину или переходе в корзину с данным товаром

Как оказалось причиной является отсутствие в товаре заполненного значения 'manufacturer'
Я так понимаю нужно сделать проверку if на пустое значение manufacturer?

Наверное причина где-то в этом коде?

			$product_info = $this->model_catalog_product->getProduct($product['product_id']);
			$manufacturer = $this->model_catalog_manufacturer->getManufacturer($product_info['manufacturer_id']);
			$this->data['products'][] = array(
				'key'      => $product['key'],
				'thumb'    => $image,
				'name'     => $product['name'],
				'model'    => $product['model'], 
				'manufacturer'     => $manufacturer['name'],
				'option'   => $option_data,
				'quantity' => $product['quantity'],
				'price'    => $price,	
				'total'    => $total,	
				'href'     => $this->url->link('product/product', 'product_id=' . $product['product_id'])		

Подскажите, как в этом случае правильно обработать это значение?

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