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I am trying to update a DateTime field in an altered form submit. Something like:

php function my_module_form_submit($form, FormStateInterface $form_state) { if (!$profile->field_someother_field->isEmpty()) { $date = new DrupalDateTime(); $date->setTimezone(new \DateTimezone(DATETIME_STORAGE_TIMEZONE)); $string = $date->format(DATETIME_DATETIME_STORAGE_FORMAT); $form_state->setValue('field_date_updated_details', [$string]); } }

But this fails with various messages (depending on whether I set the value as an array or directly as string).

Any advice?

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The form value need to be an call DrupalDateTime, so you can directly pass $date as value.

  • I tried that as well and it still throws an exception :/ – zerolab Nov 24 '16 at 13:56
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I've been working on a similar problem, and the following kind of thing works for me:

$form_state->setValue('field_date_updated_details', [['value' => $date]]);

As another respondent noted, I'm not using a string, but the actual DrupalDateTime object, and setting the 'value' inside that nested array.

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