function hook_field_instance_settings_form
Add settings to an instance field settings form.
Invoked from field_ui_field_edit_form() to allow the module defining the field to add settings for a field instance.
Parameters
$field: The field structure being configured.
$instance: The instance structure being configured.
Return value
The form definition for the field instance settings.
Related topics
5 functions implement hook_field_instance_settings_form()
Note: the procedural functions in this list are found by pattern matching, so the list may include some functions that are not actually implementations of this hook.
- field_test_field_instance_settings_form in modules/
field/ tests/ field_test.field.inc  - Implements hook_field_instance_settings_form().
 - file_field_instance_settings_form in modules/
file/ file.field.inc  - Implements hook_field_instance_settings_form().
 - image_field_instance_settings_form in modules/
image/ image.field.inc  - Implements hook_field_instance_settings_form().
 - number_field_instance_settings_form in modules/
field/ modules/ number/ number.module  - Implements hook_field_instance_settings_form().
 - text_field_instance_settings_form in modules/
field/ modules/ text/ text.module  - Implements hook_field_instance_settings_form().
 
1 invocation of hook_field_instance_settings_form()
- field_ui_field_edit_form in modules/
field_ui/ field_ui.admin.inc  - Form constructor for the field instance settings form.
 
File
- 
              modules/
field_ui/ field_ui.api.php, line 65  
Code
function hook_field_instance_settings_form($field, $instance) {
  $settings = $instance['settings'];
  $form['text_processing'] = array(
    '#type' => 'radios',
    '#title' => t('Text processing'),
    '#default_value' => $settings['text_processing'],
    '#options' => array(
      t('Plain text'),
      t('Filtered text (user selects text format)'),
    ),
  );
  if ($field['type'] == 'text_with_summary') {
    $form['display_summary'] = array(
      '#type' => 'select',
      '#title' => t('Display summary'),
      '#options' => array(
        t('No'),
        t('Yes'),
      ),
      '#description' => t('Display the summary to allow the user to input a summary value. Hide the summary to automatically fill it with a trimmed portion from the main post.'),
      '#default_value' => !empty($settings['display_summary']) ? $settings['display_summary'] : 0,
    );
  }
  return $form;
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.