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Im trying to alter the module "zendek_forms"

It states: There are four fields in the form (name, e-mail, subject, and description), but more fields can be added in hook_form_alter and the submit handler will recognize fields prefixed with "zendesk_" and pack them in the API call to Zendesk.

I am absolutely clueless on how to do this, even where to begin. Any help would be greatly appreciated.

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hook_form_alter is a drupal API function. You can google "hook_form_alter" and the 1st result will be the API documentation for this function; it includes examples.

Using this "hook" function you can inject, or otherwise change, any form in your drupal website. A "form" is an HTML construct that can send data to a webserver via either POST or GET.

So, you can create a custom drupal Module (which consist of in this case an .info file and a .module file). In your module you can create a function that implements "hook_form_alter" and adds in the zendesk field.

A simple simple example of this would be:

# in the below examples lets assume you have named your module folder as "zext" (kinda short for zendesk extensions .... i dunno :P

# in zext.info
name = Custom Zendesk Form Extensions
descrption = We want to add custom fields to the zendesk form.
package = Other
core = 7.x

# in zext.module
<?php

/**
 * Implements hook_form_alter().
 *
 * Alter the zendesk form and add a custom color text field.
 */
function zext_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'zendesk_form') {
    $form['zendesk_favorite_color'] = array(
      '#type' => 'textfield',
      '#title' => t('Favorite Color'),
      '#description' => t('Please tell us what your favorite color is!'),
      '#weight' => 99,
    );
  }
}

# that is all the code that would be in the 2 files.

With the above 2 small pieces of code we have modified the default zendesk_form (I assume its $form_id is zendesk_form ... it may be different examine the module's code to see how it IDs the forms ...) and added 1 single new custom field to allow the visitor to submit their favorite color. Drupal doesn't store these values anywhere -- they are just passed onto Zendesk upon form submission; You simply need to create the folder + 2 files and install the module in the drupal administration. Your module folder should be called zext.

There is alot of documentation online for creating modules, and using hook_form_alter. Look on drupal.org and Google.

Happy Coding!

  • This is a great start, I have a couple questions though. I created the module and info files. Uploaded to server. I activated the module. Now, Im unclear where Im supposed to see these new custom fields? Should they appear in the form? – MacLean Fitzgerald Mar 11 '14 at 1:26
  • Should I be editing the original ZD module or is this all done strictly in the new module? – MacLean Fitzgerald Mar 11 '14 at 1:32
  • Also, how would I make a field 'hidden'? I feel like Im pretty close to making this work. For a real world example of the custom fields I want to add, they would be "Product (23407353)" and "Channel (23659573)". Parenthesis are custom ids. If I were to add those to the abiove code, what would it look like? I appreciate your feedback! – MacLean Fitzgerald Mar 11 '14 at 1:35
  • my directions were clear, please read carefully. The code above is in a new custom module. With the proper $form_id it should appear in the form your alter function is targeting. Use the Form API to add whatever types of fields you want api.drupal.org/api/drupal/… alternatively see the Examples module for code samples and usage: drupal.org/project/examples – tenken Mar 11 '14 at 19:32

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