How to hide a form element when a datetime widget is filled using #states

Baud

11/12/22, 2:16 PM

The following code is working well to hide a button when a textfield is filled, but it is not working when a datetime widget is encoded:

$form['my_button'] = [
  '#type' => 'container',
  'submit' => [
    '#type' => 'submit',
    '#value' => t("Click on me"),
    '#submit' => ['submit_me']),
    '#states' => [
      'visible' => [
        ':input[data-drupal-selector=selector-of-my-text-field]' => [ 
          'filled' => FALSE,
        ],
      ],
    ],
  ],
];

Any hint?

1 + 2

forms

Kevin

11/15/22, 12:55 PM

Have you tried `['!value' => '']` or `['!value' => '(placeholder value)']`? Also https://stackoverflow.com/a/25295617/295112

Baud

11/16/22, 8:46 AM

Many thanks, it is working with `['value' => '']` (in my above code). If you add the answer, I can grant you the bounty!!!

Score:1

Drupal

Kevin

11/16/22, 10:52 AM

"filled" won't work for date elements, but you can check if it is not empty with:

['!value' => '']

0 + 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to hide a form element when a datetime widget is filled using #states

TH: วิธีซ่อนองค์ประกอบฟอร์มเมื่อวิดเจ็ตวันที่และเวลาถูกเติมโดยใช้ #states

RO: Cum să ascundeți un element de formular atunci când un widget datetime este completat folosind #states

RU: Как скрыть элемент формы, когда виджет даты и времени заполняется с помощью #states

VI: Cách ẩn phần tử biểu mẫu khi tiện ích ngày giờ được lấp đầy bằng cách sử dụng #states

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