'SELECT model_id,model_name,model_reserve,model_reserve as item_quantity_to_buy'. ' FROM model'. ' WHERE model_reserve>0 AND NOT EXISTS'. ' (SELECT item_id FROM item LEFT JOIN barcode USING(barcode_id) WHERE barcode.model_id=model.model_id AND status_id=1 AND item_quantity>0 AND item_valid_till=0)', "Nakoupit: Dochází (WishList)" => 'SELECT model_id,model_name,barcode_name,model_reserve,'. ' COUNT(item_id),SUM(item_quantity),model_reserve-SUM(item_quantity) as item_quantity_to_buy'. ' FROM item LEFT JOIN barcode USING(barcode_id) LEFT JOIN model USING(model_id)'. ' WHERE item_valid_till=0 AND status_id=1'. ' GROUP BY model_id'. ' HAVING SUM(item_quantity)