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function advpoll_form in Advanced Poll 6.2

Same name and namespace in other branches
  1. 5 advpoll.module \advpoll_form()
  2. 6.3 advpoll.module \advpoll_form()
  3. 6 advpoll.module \advpoll_form()

Implementation of hook_form().

This hook displays the form necessary to create/edit the poll.

File

./advpoll.module, line 297
Advanced Poll - a sophisticated polling module for voting, elections, and group decision-making.

Code

function advpoll_form(&$node, $form_state) {
  $mode = _advpoll_get_mode($node->type);
  $type = node_get_types('type', $node);
  $editing = isset($node->nid);
  $form = array();

  // Only add javascript once, even if _form is called multiple times.
  static $add_js;
  if (!$add_js) {

    // Pass translatable strings
    drupal_add_js(array(
      'advPoll' => array(
        'remove' => t('Remove'),
        'addChoice' => t('Add choice'),
        'noLimit' => t('No limit'),
      ),
    ), 'setting');
    drupal_add_js(drupal_get_path('module', 'advpoll') . '/advpoll-form.js', 'module');
    drupal_add_css(drupal_get_path('module', 'advpoll') . '/advpoll.css', 'module');
    $add_js = TRUE;
  }
  $form['title'] = array(
    '#type' => 'textfield',
    '#maxlength' => 255,
    '#title' => check_plain($type->title_label),
    '#required' => TRUE,
    '#default_value' => $node->title,
  );
  if ($type->has_body) {
    $form['body_field'] = node_body_field($node, $type->body_label, $type->min_word_count);
  }
  if (isset($form_state['values']['choices'])) {
    $choices = $form_state['values']['choices'];
    if ($form_state['values']['more_choices']) {
      $choices *= 2;
    }
  }
  else {
    $choices = max(2, isset($node->choice) && count($node->choice) ? count($node->choice) : ADVPOLL_INITIAL_CHOICES);
  }
  if (variable_get('advpoll_use_question_' . $type->type, ADVPOLL_USE_QUESTION) || isset($node->question) && $node->question !== '') {
    $form['question'] = array(
      '#type' => 'textfield',
      '#title' => t('Question'),
      '#default_value' => $node->question,
      '#maxlength' => 255,
    );
  }
  $form['choices'] = array(
    '#type' => 'hidden',
    '#value' => $choices,
  );

  // Advanced Poll choices
  $form['choice'] = array(
    '#type' => 'fieldset',
    '#title' => t('Poll choices'),
    '#collapsible' => TRUE,
    '#prefix' => '<div class="poll-form" id="poll-choices">',
    '#suffix' => '</div>',
    '#tree' => TRUE,
    '#weight' => 1,
  );
  if ($editing) {
    $form['choice']['choice_note'] = array(
      '#value' => '<div id="edit-settings-choice-note" class="description">' . t('Note: adding or removing choices after voting has begun is not recommended.') . '</div>',
    );
  }
  $form['choice']['more_choices'] = array(
    '#type' => 'checkbox',
    '#title' => t('Need more choices'),
    '#value' => 0,
    '#parents' => array(
      'more_choices',
    ),
    // Don't pollute $form['choice']
    '#prefix' => '<div id="more-choices">',
    '#suffix' => '</div>',
    '#description' => t("If the number of choices above isn't enough, click here to add more choices."),
    '#weight' => 1,
  );

  // First, loop through any currently existing choices.
  $current_choices = 0;
  $default_choices = variable_get('advpoll_choices_' . $type->type, '');
  if (isset($node->choice)) {
    foreach ($node->choice as $index => $choice) {
      $form['choice'][$index]['label'] = array(
        '#type' => 'textfield',
        '#title' => t('Choice %n', array(
          '%n' => $current_choices + 1,
        )) . ($choice['writein'] ? ' ' . t('(write-in)') : ''),
        '#default_value' => $choice['label'],
        '#attributes' => array(
          'class' => 'choices',
        ),
        '#maxlength' => variable_get('advpoll_choice_max_length', ADVPOLL_CHOICE_MAX_LENGTH),
      );
      $current_choices++;
      $next_index = $index + 1;
    }
  }
  elseif ($default_choices != '') {
    $default_choices = explode("\n", $default_choices);
    foreach ($default_choices as $index => $label) {
      $form['choice'][$index]['label'] = array(
        '#type' => 'textfield',
        '#title' => t('Choice %n', array(
          '%n' => $current_choices + 1,
        )),
        '#default_value' => $label,
        '#attributes' => array(
          'class' => 'choices',
        ),
      );
      $current_choices++;
      $next_index = $index + 1;
    }
  }
  else {
    $next_index = 1;
  }

  // Now add on extra choices if we need to.
  if ($current_choices < $choices) {
    for ($index = $next_index; $current_choices < $choices; $index++, $current_choices++) {
      $form['choice'][$index]['label'] = array(
        '#type' => 'textfield',
        '#title' => t('Choice %n', array(
          '%n' => $current_choices + 1,
        )),
        '#attributes' => array(
          'class' => 'choices',
        ),
        '#maxlength' => variable_get('advpoll_choice_max_length', ADVPOLL_CHOICE_MAX_LENGTH),
      );
    }
  }
  $form['settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Poll settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 2,
    '#tree' => TRUE,
  );
  $max_choice_list = array();
  for ($i = 0; $i <= $choices; $i++) {
    $max_choice_list[$i] = $i == 0 ? t('No limit') : $i;
  }
  $form['settings']['max_choices'] = array(
    '#type' => 'select',
    '#title' => t('Maximum choices'),
    '#default_value' => isset($node->max_choices) ? $node->max_choices : variable_get('advpoll_max_choices_' . $type->type, ADVPOLL_MAX_CHOICES),
    '#options' => $max_choice_list,
    '#description' => t('Limits the total number of choices voters may select.'),
  );
  $voting_algorithms = advpoll_algorithms($mode);
  if (count($voting_algorithms) > 1) {

    // Create a select field when the poll supports several algorithms.
    $form['settings']['algorithm'] = array(
      '#type' => 'select',
      '#title' => t('Algorithm'),
      '#options' => $voting_algorithms,
      '#default_value' => isset($node->algorithm) ? $node->algorithm : variable_get('advpoll_algorithm_' . $type->type, key($voting_algorithms)),
      '#description' => t('Voting algorithm to use to calculate the winner.'),
    );
  }
  else {

    // Pass the only algorithm as a value.
    $form['settings']['algorithm'] = array(
      '#type' => 'value',
      '#value' => key($voting_algorithms),
    );
  }
  $form['settings']['close'] = array(
    '#type' => 'checkbox',
    '#title' => t('Close poll'),
    '#description' => t('When a poll is closed users may no longer vote on it.'),
    '#default_value' => isset($node->active) ? !$node->active : 0,
  );

  // MW modified to allow easier to use date fields and set default dates in a range
  // of now to +30 days.  Eliminated minutes and seconds for ease of use.
  $format = 'Y-m-d';
  $date = date($format, time());
  $form['settings']['start_date'] = array(
    '#type' => 'date_select',
    '#default_value' => isset($node->start_date) ? date($format, $node->start_date) : $date,
    '#date_format' => $format,
    '#title' => t('Starting date'),
    '#description' => t('The date that the poll opens.'),
  );
  $form['settings']['end_date'] = array(
    '#type' => 'date_select',
    '#default_value' => isset($node->end_date) ? date($format, $node->end_date) : date($format, time() + 60 * 60 * 24 * 30),
    '#date_format' => $format,
    '#title' => t('Ending date'),
    '#description' => t('Leave blank if you do not want the poll to close automatically.'),
  );

  // Settings available for users with 'administer polls' permission.
  $default_use_list = isset($node->use_list) ? $node->use_list : variable_get('advpoll_electoral_list_' . $type->type, ADVPOLL_ELECTORAL_LIST);
  $default_show_votes = isset($node->show_votes) ? $node->show_votes : variable_get('advpoll_show_votes_' . $type->type, ADVPOLL_SHOW_VOTES);
  $default_writeins = isset($node->writeins) ? $node->writeins : variable_get('advpoll_writeins_' . $type->type, ADVPOLL_WRITEINS);
  $default_show_writeins = isset($node->show_writeins) ? $node->show_writeins : variable_get('advpoll_show_writeins_' . $type->type, ADVPOLL_SHOW_WRITEINS);
  if (user_access('administer polls')) {
    $form['settings']['admin_note'] = array(
      '#value' => '<div id="edit-settings-admin-note" class="description">' . t('The settings below are only available for users with the <em>administer polls</em> permission.') . '</div>',
    );
    $form['settings']['writeins'] = array(
      '#type' => 'checkbox',
      '#title' => t('Allow users to cast a write-in vote'),
      '#default_value' => $default_writeins,
      '#description' => t('Allow voters with the "add write-ins" permission to write-in up to one choice each.'),
      '#attributes' => array(
        'class' => 'settings-writeins',
      ),
    );
    $form['settings']['show_writeins'] = array(
      '#type' => 'checkbox',
      '#title' => t('Display write-in votes as choices for future voters'),
      '#default_value' => $default_show_writeins,
      '#description' => t('Allow voters to see and choose from previously submitted write-in votes.'),
      '#prefix' => '<div class="edit-settings-show-writeins">',
      '#suffix' => '</div>',
    );
    $form['settings']['use_list'] = array(
      '#type' => 'checkbox',
      '#title' => t('Restrict voting to electoral list'),
      '#description' => t('If enabled, a list of eligible voters will be created and only that group will be able to vote in the poll.'),
      '#default_value' => $default_use_list,
    );
    $form['settings']['show_votes'] = array(
      '#type' => 'checkbox',
      '#title' => t('Show individual votes'),
      '#description' => t('Users with the appropriate permissions will be able to see how each person voted.'),
      '#default_value' => $default_show_votes,
    );
    $form['settings']['create_view_block'] = array(
      '#type' => 'checkbox',
      '#title' => t('Generate a view block of this poll'),
      '#description' => t('When checked, a view block for this particular poll will be generated upon submission.'),
      '#default_value' => isset($node->create_view_block) ? $node->create_view_block : 0,
    );
  }
  else {

    // Just pass the values for users without the "administer polls" permission.
    $defaults = array(
      'use_list' => $default_use_list,
      'show_votes' => $default_show_votes,
      'writeins' => $default_writeins,
      'show_writeins' => $default_show_writeins,
    );
    foreach ($defaults as $name => $value) {
      $form['settings'][$name] = array(
        '#type' => 'value',
        '#value' => $value,
      );
    }
  }
  return $form;
}