For example a filter form on admin areas can best be GET forms, that way they are bookmarkable and can filters be maintained across pager-pages.

How can one best use form_api for such forms? Will the _validate hooks be submitted? Can the _submit hook be omitted?

For example views-exposed filters work this way; But the code in views handling this is convoluted and complex, too complex to be used as good example for when developing custom interfaces with simple filter forms.

  • I don't understand the question. You can create or hook_alter any form to grab GET-data, if that's what you mean. – Letharion Jan 13 '12 at 12:06
  • I've updated the question with a reference to an examlple. – berkes Jan 13 '12 at 13:00

Use the #method parameter of the form like this:

  $form['#method'] = 'get';
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  • Sure. That is one part. But how about validation, submit hooks, and so on. Are the set? – berkes Jan 15 '12 at 20:50
  • 2
    A form's method must be set to post for it's submit and validate functions to be called implicitly. – Lester Peabody Nov 1 '13 at 19:31
  • Related: form_data keys always_process and method can also be set in the form definition which results in validate+process hooks being run. But I can't find an example of use for this and I still end up with form_state containing a method key set to post! – artfulrobot Dec 16 '14 at 16:05

Just in case anyone stumbles upon this question, this is a more complete real-life, yet very simple example :)

you will want to define the form

function YOURMODULE_search_form($form, &$form_state) {
  $form['#method'] = 'get';
  $form['#action'] = '/search';
  $form['#attributes'] = array('class' => array('mymod-search'));
  $form['search'] = array(
    '#type' => 'textfield',
    '#size' => 20,
  return $form;

and then you can use it

$searchform = drupal_get_form('YOURMODULE_search_form');
$output .= drupal_render($searchform);

The last line could be i.e. a block['content'] or whatever you need.

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  • For search forms, you may want to also put $form_state['redirect'] = false; in the submit handler to disable redirecting after the form is submitted. – Ali Gangji Sep 14 '14 at 16:15

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