Programmatically set maxlength for given field

I'd like this information also, if anyone has any insight. I only want the maxlength set for a specific role.

+1

If it would be as easy as for http://drupal.org/project/checkall that would be the best :)

With checkall this is all that is needed:

<?php
$form['foobar'] = array(
  '#type' => 'checkboxes',
  '#options' => $options,
  '#default_value' => $default_value,
  '#checkall' => TRUE,  // <--- this is it ;-)
);
?>

For maxlength we could have sg like

<?php
$form['foobar'] = array(
  '#type' => 'checkboxes',
  '#options' => $options,
  '#default_value' => $default_value,
  '#maxlength' => 128
  '#maxlength_countdown' => TRUE
  '#maxlength_message' => "too long"

);

?>

I needed to add this to just one comment form on one page, here was my solution — it basically mimics the functionality without all the mess. All we really need to populate to make the module take effect is to tell javascript files to load, pass in the js variables 'maxlength' and modify the form element

// Create a utility module, and tput this in it.
function modulename_form_alter(&$form, $form_state, $form_id) {

if($form_id == 'comment_form' && $form['nid']['#value'] == '2043' ) {

	$values['text'] = "";
	$values['limit'] = 315;
	$value = '';
	
	$id = 'comment';
	
	$path = drupal_get_path('module', 'maxlength');
    drupal_add_js($path .'/maxlength.js');
	$js_settings = array(
     	 'maxlength' => array(
      		  'edit-'. $id => $values['limit'],
     		 ),
   		 );
 	   drupal_add_js($js_settings, 'setting');
   	   
 	   // HARD CODED, CAUSE I COUDLN'T FIGURE OUT WHAT WAS BROKE
 	   $form['comment_filter']['#suffix'] = '<div class="maxlength-counter" id="maxlength-comment">Characters Remaining: <span class="maxlength-counter-remaining">315</span></div>';
 	   //$form['comment_filter']['#suffix'] = 
   	   //	'<div id="maxlength-'. $id .'" class="maxlength-counter">'. t($values['text'], array('!limit' => $values['limit'], '!count' =>'<span class="maxlength-count">'. drupal_strlen($value).'</span>', '!remaining' => '<span class="maxlength-counter-remaining">'. $remaining .'</span>')) .'</div>';
  		}
}

I plan to make a patch for #984794: Create API for non-node forms that should handle this situation also.

I used your code but It only displays the Characters remaining: 10 and when I wrote some text it does not decrement the value of Characters remaining.

1) Post comment in ticket with patch
2) Set that ticket to needs work
3) mention your browser, steps to reproduce, most importantly, any js errors noticed.

You can use now the api from hefox