How do I set a maximum value for Postal Code in the Admin?

[thebigkick]

Is this possible in the Admin? I set the minimum value to 5. Thing is my customers are entering their complete Postal Code with the additional digits (for example, 12345-0987 instead of just the standard 5 character 12345 Postal Code). When this happens the tax calculations are incorrect.

I tried limiting the input via HTML right on the page by deleting the php:

 <li>
        
          <label class="inputLabel" for="postcode_shipping"><?php echo ENTRY_POST_CODE . (zen_not_null(ENTRY_POST_CODE_TEXT) ? '<span class="alert">' . ENTRY_POST_CODE_TEXT . '</span>': ''); ?></label>        
        
  <?php echo zen_draw_input_field ('postcode', $_SESSION['postcode'], zen_set_field_length (TABLE_ADDRESS_BOOK, 'entry_postcode', '40') . ' id="postcode"'); ?>
        
        </li>

and using HTML:

<input type="text" id="postcode" maxlength="5" size="5" name="postcode">

When I did this I set the minimum characters in the Admin to 5 as well. Now when customers enter their address an error comes up asking to enter their Postal Code as if they never did entered anything.

Also, I should note that I'm using the Numinix Quick Checkout plugin so this could lead me to think that it's running through the javascript.

Thanks

[DrByte]

When this happens the tax calculations are incorrect.

Um ... Zen Cart's built-in tax calculations are not based on Postal/Zip code.

I suggest that perhaps your problem is really in your customized code/addons that are doing tax calculations differently than what Zen Cart normally does.

[thebigkick]

I have an plugin setup to change the price of delivery based on the postal code. so i guess it is a bug in the 3rd party plugin.

[DrByte]

I would suggest that if that plugin depends on a 5-digit code that it should be adjusted to do its own trimming of the data before it applies its logic.

You really don't want to prevent the customer from giving the more accurate longer number, since if you were to ever choose to engage a shipping service that needed that information, then you'd want it.