July 2017
Intermediate to advanced
456 pages
11h 32m
English
Content preview from Mastering Drupal 8
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Exploring the Form API
The structure of the Form API elements returned by the buildForm function is almost completely the same as it was in Drupal 7. The attributes for the form elements are generally identical. One parameter that has changed is #attached, which is used to add libraries, arbitrary JavaScript, HTML head links and tags, and so on. For example, if you wanted to ensure that the backbone was loaded with the configuration form earlier, you would attach it to a form element like this:
public function buildForm(array $form, FormStateInterface $form_state) { $config = $this->config('mastering_drupal_8.settings'); $form['name'] = array( '#type' => 'textfield', '#title' => $this->t('Name'), '#default_value' => $config->get('name'), ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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