drupal #default_value not applied in select option in drupal_render

Question

I try to print a drupal 'select option' element in a form .I think drupal_render not applying #default_value.every thing is ok except #default_value not applied.
where is the problem?anybody know how i can do this? do #default_value accept string value?

this is pseudo of my codes:

function test_menu(){
$items=array();

    $items['admin/config/regional/test']=array(
    'title' => 'test',
    'description' => t('test'),
    'page callback' =>'drupal_get_form',
    'page arguments' => array('test_function'),

);
$items[]=array();
return $items;
}


function test_function(){
 $header = array
  (
  'test1' => t('test1'),
  'test2'=> t('test2'),
  );
 $a=(1,2,3);
 $$options=array();
 foreach($a as $i=>$v)
  {
    $f['type'] = array(
   '#type' => 'select',
   '#options' => array(1,2,3,4),
   '#default_value'=>1,
    );
$options += array($name=>array( 'test1' => $v,
   'test2'=> drupal_render($f['type']) ,
  }
   $form['table'] = array
   (
   '#type' => 'tableselect',
   '#header' => $header,
   '#options' => $options,
   '#multiple' => FALSE
   //'#empty' => t('No users found'),
   );
   $form['submit'] = array
       (
   '#type' => 'submit',
   '#value' => t('Submit'),
    );
   return $form;
 }    

I test textfield but its also not work and not accept #default_value in drupal_render

    $f['test3']=array(
    '#type'=>'textfield',
    '#title'=>'test3',
    '#default_value' =>'aaa',
);

I suppose this is beacuse using drupal_render .anybody have a solution?

Team

One thing people should be aware of when working with this is that the autocomplete attribute should be set to 'off' or Firefox wont show the selected option as selected. – Benefice

Answer 1

In Drupal_render 's used in drupal_get_form , #default_value not set use must use #value instaed of it.

$f['type'] = array(
'#type' => 'select',
'#options' => drupal_map_assoc(array('1','2','3','4')),
'#value'=> '1',
);

Team

This is dangerous as user will not be able to override the submitted value (Description: Used to set values that cannot be edited by the user. Should NOT be confused with #default_value, which is for form inputs where users can override the default value.) api.drupal.org/api/drupal/… – Bedrail

Thanks so much, this answer is correct and solved my stuck – Bile

@TrungLeNguyenNhat you're welcome, I happy to seen my answer could help another guys after some years :) – Team

Answer 2

The following code doesn`t work:

$form['title'] = array(
'#type' => 'select',
'#options' => drupal_map_assoc(array(t('opt1'), t('opt3'), t('opt4'), t('opt5'), t('opt6'))),
'#default_value' => array($default_value_key));


$form['title1'] = array(
'#type' => 'select',
'#options' => drupal_map_assoc(array(t('opt1'), t('opt3'), t('opt4'), t('opt5'), t('opt6'))),
'#default_value' => array($default_value_key));

return $form;

But then i did the following:

$form['group'] = array('#tree' => TRUE);

$form['group']['title'] = array(
'#type' => 'select',
'#options' => drupal_map_assoc(array(t('opt1'), t('opt3'), t('opt4'), t('opt5'), t('opt6'))),
'#default_value' => array($default_value_key));


$form['group']['title1'] = array(
'#type' => 'select',
'#options' => drupal_map_assoc(array(t('opt1'), t('opt3'), t('opt4'), t('opt5'), t('opt6'))),
'#default_value' => array($default_value_key));

return $form;

And default values now works.

Middling

Adding the $form['group'] = array('#tree' => TRUE); worked for me too – Deneb

Answer 3

I have the same problem. finally, i found one method. As you said, the default_value does not work. So make the default_value fixed as 0. and change the options array, put the default value on the top.

Indiscriminate

Answer 4

If you look at the example from Drupal's Form API, you'll see that the #options setting takes a key-value pair array and in the #default_value, you should specify the key of the default value, not the string value.

Also, according to documentation for the #options setting, #options is expecting String values. So your select should be more like:

$f['type'] = array(
   '#type' => 'select',
   '#options' => drupal_map_assoc(array('1','2','3','4')),
   '#default_value'=> '1',
);

Mullion

.It's not working with drupal_render. In my orgin code i set array keys . the problem is 'drupal_render' that use in drupal_get_form not set #default_value. – Team