ajax

Recently, I was building a custom Drupal form that used dependency injection and included an ajax submit handler. While testing the form, on the initial page load, the form submitted just fine using ajax. However, when the user used another ajax handler on the same form, all of the injected services were set to `NULL`.

It turns out that I had my services set to be

Recently I needed to modify a Drupal 7 node form to have two drop down select elements populate based upon a third select element's choice. I have altered select elements in the past to have a single dependency, but never have I made one element control the content of two different elements.

Today I needed to create an ajax powered form using Drupal 7, the caveat being that I needed one user action to perform multiple ajax actions to different sections of the form. To begin, my form element with the ajax looks like this:

  $form['company']['company_branches'] = array(
    '#type' => 'select',
    '#title' => t(