Date picker formatter field always showing at least once in Node

Guten Morgen ;) Thanks for reacting so fast. I tried to have a look into CCK fields but frankly, the code went way over my head.

Here the content types definition:

$content['type']  = array (
  'name' => 'Doodle',
  'type' => 'doodle',
  'description' => '',
  'title_label' => 'Title',
  'body_label' => 'Body',
  'min_word_count' => '0',
  'help' => '',
  'node_options' => 
  array (
    'status' => true,
    'promote' => false,
    'sticky' => false,
    'revision' => false,
  ),
  'upload' => '0',
  'show_preview_changes' => 0,
  'ffp_upload' => 
  array (
    'file_path' => '',
    'file_path_cleanup' => 
    array (
      'file_path_pathauto' => 0,
      'file_path_tolower' => 0,
      'file_path_transliterate' => 0,
    ),
    'file_name' => '[filefield-onlyname-original].[filefield-extension-original]',
    'file_name_cleanup' => 
    array (
      'file_name_pathauto' => 0,
      'file_name_tolower' => 0,
      'file_name_transliterate' => 0,
    ),
    'retroactive_update' => '',
  ),
  'private' => 1,
  'old_type' => 'doodle',
  'orig_type' => '',
  'module' => 'node',
  'custom' => '1',
  'modified' => '1',
  'locked' => '0',
  'og_content_type_usage' => 'omitted',
  'content_profile_use' => 0,
  'comment' => '0',
  'comment_default_mode' => '4',
  'comment_default_order' => '1',
  'comment_default_per_page' => '50',
  'comment_controls' => '3',
  'comment_anonymous' => 0,
  'comment_subject_field' => '1',
  'comment_preview' => '1',
  'comment_form_location' => '0',
  'comment_upload' => '0',
  'comment_upload_images' => 'none',
  'ffp_comment_upload' => 
  array (
    'file_path' => '',
    'file_path_cleanup' => 
    array (
      'file_path_pathauto' => 0,
      'file_path_tolower' => 0,
      'file_path_transliterate' => 0,
    ),
    'file_name' => '[filefield-onlyname-original].[filefield-extension-original]',
    'file_name_cleanup' => 
    array (
      'file_name_pathauto' => 0,
      'file_name_tolower' => 0,
      'file_name_transliterate' => 0,
    ),
    'retroactive_update' => '',
  ),
  'notifications_node_ui' => 
  array (
    'block' => true,
    0 => 1,
    'form' => false,
    'comment' => false,
    'links' => false,
    'teaserlinks' => false,
    'subform' => false,
  ),
  'notifications_content_type' => 
  array (
    'taxonomy' => true,
    'grouptype' => true,
    'thread' => true,
    'nodetype' => true,
    'author' => true,
    'typeauthor' => true,
  ),
  'print_display' => 0,
  'print_display_comment' => 0,
  'print_display_urllist' => 0,
  'ant' => '0',
  'ant_pattern' => '',
  'ant_php' => 0,
);
$content['fields']  = array (
  0 => 
  array (
    'label' => 'doodledate',
    'field_name' => 'field_doodledate',
    'type' => 'datetime',
    'widget_type' => 'date_popup',
    'change' => 'Change basic information',
    'weight' => '31',
    'default_value' => 'blank',
    'default_value2' => 'same',
    'default_value_code' => '',
    'default_value_code2' => '',
    'input_format' => 'm/d/Y - H:i',
    'input_format_custom' => '',
    'year_range' => '-3:+3',
    'increment' => '1',
    'advanced' => 
    array (
      'label_position' => 'above',
      'text_parts' => 
      array (
        'year' => 0,
        'month' => 0,
        'day' => 0,
        'hour' => 0,
        'minute' => 0,
        'second' => 0,
      ),
    ),
    'label_position' => 'above',
    'text_parts' => 
    array (
    ),
    'description' => '',
    'group' => false,
    'required' => 0,
    'multiple' => '1',
    'repeat' => 0,
    'todate' => '',
    'granularity' => 
    array (
      'year' => 'year',
      'month' => 'month',
      'day' => 'day',
      'hour' => 'hour',
      'minute' => 'minute',
    ),
    'default_format' => 'medium',
    'tz_handling' => 'none',
    'timezone_db' => '',
    'op' => 'Save field settings',
    'module' => 'date',
    'widget_module' => 'date',
    'columns' => 
    array (
      'value' => 
      array (
        'type' => 'datetime',
        'not null' => false,
        'sortable' => true,
        'views' => true,
      ),
    ),
    'display_settings' => 
    array (
      'weight' => '31',
      'parent' => '',
      'label' => 
      array (
        'format' => 'hidden',
      ),
      'teaser' => 
      array (
        'format' => 'hidden',
        'exclude' => 0,
      ),
      'full' => 
      array (
        'format' => 'date_picker_formatter',
        'exclude' => 0,
      ),
      5 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      4 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      2 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      3 => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
      'token' => 
      array (
        'format' => 'default',
        'exclude' => 0,
      ),
    ),
  ),
);
$content['extra']  = array (
  'title' => '-5',
  'body_field' => '0',
  'revision_information' => '20',
  'comment_settings' => '30',
  'menu' => '-2',
  'book' => '10',
  'path' => '30',
  'print' => '30',
);

Just tested it. It stops the empty field from appearing...

...but unfortunately it also stops the valid fields from appearing.

Yes, this looks very fine! Thank you so much!

I'll do some more testing here (alone and in combination with Pollfield) before I implement it in my Intranet, so if I come across anything else, I'll drop a note.

(And in case you'll attend the Drupalcamp in Essen - you're invited to a drink :)

Sorry to hear about Not!Essen :(

I think I found another little bug - when only one valid field is added, it's still not shown. (Okay, it makes no sense to add just one Doodle date, but I guess it's unintentional to filter that).

The bug that a single doodle field is not displayed can be fixed by correcting line 442 (I hope that's the right line for everyone):

if (count(element_children($element)) <= 1 || date_content_is_empty($first_item, $field)) {

to

if (count(element_children($element)) < 1 || date_content_is_empty($first_item, $field)) {

A simple <= to < makes all the difference here :) Thanks again for the cool module.