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Conditional Validation in Display Manager for Minimum Order Quantity

Thread began 7/30/2009 3:48 pm by chris369732 | Last modified 8/03/2009 3:51 pm by CraigR | 1934 views | 4 replies |

chris369732

Conditional Validation in Display Manager for Minimum Order Quantity

In the shopping cart display manager, customers have the option to change the order quantity. The problem is, how do we validate at that time for the minimum order quantity?

We have the conditional client validation for the minimum order quantity set up in "ADD TO CART" forms on the results and detail pages that have the shopping cart, but once the items are added to the cart, the customers can change the order quantity below the minimum quantity.

I've tried to use client validation, but the field ISRCart_Quantity_<?php echo $ISRCart->DisplayIndex; ?> doesn't appear as a valid form field.

In trying to use server validation, if any of the rows have a order quantity that is below a minimum quantity for any other row, it triggers the validation.

Thanks!

Chris

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Ray BorduinWebAssist

Here is what you can do...

Create a new column in your cart called MinQty and update your add to cart button to store that value.

Then add a calculation to your cart:
TrueQuantity = (([Quantity]>[MinQty])?[Quantity]:[MinQty])

and update the calculation:
TotalPrice = (([Quantity]>[MinQty])?[Quantity]:[MinQty]) * [Price]

Now in your cart display update the value in the textfield form element to show the "TrueQuantity" instead of the "Quantity" and the same thing on the confirm and other pages. Also update your store cart details in database so that the "TrueQuantity" is stored.

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CraigRBeta Tester

order quantity - read only

Do you want the order quantity to be editable in the cart ?

You could make the quantity non-editable which would prevent the customer changing the quantity.

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chris369732

Forcing a minimum quantity in the cart

Ray,

Thank you very much for the idea. Of course this would prevent quantities below the minimum from being ordered, but without validation text that explains why, it could be confusing and irritating to customers. We've got the minimum quantity validation working well on our results and detail pages and it would be nice to have it in the cart as well. I've done some experimentation since I first posted this and it looks like minimum validation in the cart is a "no go."

Craig,

We could remove the ability to edit the quantity in the cart, but then if the customer made a mistake or changed their mind, they would have to delete the item and go back to the results or detail page.

At this point, I think we will just move forward with a Spry Tooltip and the honor system.

Thanks!

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CraigRBeta Tester

I seem to remember setting up a trigger on the cart display page for a site I did a while ago, which produced an alert if the customer changed the order quantity so that it exceeded the stock quantity.

This displayed a warning and disabled the checkout button.

If this would help, I could probably find an example.

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