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Drupal 8 API tutorials
Want to learn about the Drupal 8 APIs, with worked examples? Follow my series of tutorials, covering routing, caching, entities, config and much more!
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Recent blogposts
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Altering the length of a Drupal 8 text field that contains data
Friday, July 21, 2017 - 11:31 -
A menagerie of testing: behavioural, unit, system, smoke, regression, oh my!
Friday, June 2, 2017 - 10:11 -
Including Javascript in Behat tests, all inside a headless, virtual machine
Tuesday, May 30, 2017 - 16:51
About me
I'm J-P Stacey, and I'm a freelance technical developer and software architect, working with Drupal, Javascript, Symfony, PHP and devops, with experience in project and process management and an emphasis on usability.
I live in the UK; my website is self-hosted on bigv.io; my email is hosted by Google, and that's also what I use to share files. (More info|What is this?)
Dear JP:
Dear JP:
I believe your example needs to include the following "use" statements:
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\AlertCommand;
use Drupal\Core\Ajax\UpdateBuildIdCommand;
use Drupal\Core\Ajax\InvokeCommand;
Keep up the great work. I am learning bunch. Thanks!