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I have to alter cities form field in checkout page under delivery section. I have to change it from a textfield to a select options dropdown.

  • I have managed to do that using a separate template file for checkout page but I am not able to use #ajax functionality of form field
  • In Drupal 6 it was possible using hook_form_uc_cart_checkout_form_alter(), but in Drupal 7 the address fields are rendered in a different way, and I'm not able to alter the address form fields as desired

What are other ways of changing it?

I used hook_form_alter() with an #after_build callback; I was able to change the field from text field to select option, but the #ajax parameter attached to this is not working.

It seems like ajax callbacks are attached with the hooks at an early stage. Is there any way to have the #ajax property working?

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If you are using Addressfield module you can easily do that extending the module itself.

Look into the sites/all/modules/addressfield/plugin/format & you will see address.inc, where you can extend the list of region or city.

You can look for the example in sites/all/modules/addressfield/example/plugin/format to better understanding of the the format which module will accept for extending it for your list values.

  • I am using ubercart. There is address.inc at path modules\ubercart\uc_store\classes\ but this looks more like a class definition. Here is the reference to this class drupalcode.org/project/ubercart.git/blob/refs/heads/7.x-3.x:/…. – mjs Aug 13 '13 at 9:47
  • @mjs Can't help then. Sorry...I don't have experience with ubercart but only Drupal Commerce. I saw you mentioning addressfield, so thought may be they also addressfield for taking address from users.. – RajeevK Aug 13 '13 at 10:07
  • Files that comes with a module or Drupal should never be changed; the problem would be updating the module or Drupal. – kiamlaluno Aug 13 '13 at 13:16
  • @kiamlaluno - Yes I understand. But if somebody has to do list the region name, or some values list for some particular country, they can open a issue, do it and submit the patch. Contributors will happily accept that..I have done the same. – RajeevK Aug 13 '13 at 13:25

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