SimpleCart, SQL and MVC : <p>I have a product table in my sql database with one of the fields named productQuantity. I am using simpleCart which saves alot of manual coding. One such feature is the simpleCart.increment which increases the quantity of the item in the cart.  </p>

<p>However I am now having an issue of whereby if there is 5 items in stock the increment goes pass the 5th item.</p>

<p>How do I limit the customer from increasing the quantity if the customer wants to purchase all five items and for example mistakenly increments to 6 items.</p>
