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JavaScript form dependencies with the States System

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  • 0:15
    In this chapter, we're going to show the JavaScript States
  • 0:18
    System which works with Drupal's Form API
  • 0:22
    to allow some JavaScript behavior to happen
  • 0:25
    without actually having to write any JavaScript of your own.
  • 0:29
    We can see some examples of this happening.
  • 0:31
    If we go to just the Node Edit page in Drupal 7 and scroll down,
  • 0:38
    you can see some things like this.
  • 0:39
    When you click on the menu settings' Provide a menu link checkbox,
  • 0:45
    you can see that the fields next to it
  • 0:49
    either show or hide by just clicking that checkbox

Javascript Form Dependencies with the States System


Create dependencies between form elements so that you can show/hide or disable/enable one form setting based upon the form state of another from setting.

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