function scheduler_tokens in Scheduler 7

Same name and namespace in other branches

1. 8 scheduler.tokens.inc \scheduler_tokens()
2. 2.x scheduler.tokens.inc \scheduler_tokens()

Implements hook_tokens().

File

./scheduler.tokens.inc, line 29

Builds placeholder replacement tokens for node scheduler data.

Code

function scheduler_tokens($type, $tokens, array $data = array(), array $options = array()) {
  $language_code = isset($options['language']) ? $options['language']->language : NULL;
  $replacements = array();
  if ($type == 'node' && !empty($data['node'])) {

    // Initialise the two field variables. The syntax ${$field} = NULL inside
    // the foreach loop does work but we get warnings for Drupal Coding Practice
    // that the variables are not initialised, hence do it simply here instead.
    $publish_on = $unpublish_on = NULL;

    // Usually the tokens are generated on saved node data, where the scheduler
    // fields are numeric timestamps. However, if the tokens are required during
    // the process of saving a node before hook_node_presave() has been executed
    // then the fields will be date strings. Cater for both scenarios here.
    // @see https://www.drupal.org/node/2750467
    $node = $data['node'];
    foreach (array(
      'publish_on',
      'unpublish_on',
    ) as $field) {
      if (isset($node->{$field})) {
        if (is_numeric($node->{$field})) {

          // We want the numeric value.
          ${$field} = $node->{$field};
        }
        elseif (!empty($node->{$field})) {

          // Convert the text to a numeric value.
          ${$field} = _scheduler_strtotime($node->{$field});
        }
      }
    }

    // For the plain [node:scheduler-publish] and [node:scheduler-unpublish]
    // generate the replacements using the default date format of 'medium'.
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'scheduler-publish':
          if (!empty($publish_on)) {
            $replacements[$original] = format_date($publish_on, 'medium', '', NULL, $language_code);
          }
          break;
        case 'scheduler-unpublish':
          if (!empty($unpublish_on)) {
            $replacements[$original] = format_date($unpublish_on, 'medium', '', NULL, $language_code);
          }
          break;
        default:
      }
    }

    // Chained token replacement. This generates replacements for patterns with
    // a date format suffix, for example [node:scheduler-publish:long] or
    // [node:scheduler-unpublish:date_only].
    if (!empty($publish_on) && ($publish_tokens = token_find_with_prefix($tokens, 'scheduler-publish'))) {
      $replacements += token_generate('date', $publish_tokens, array(
        'date' => $publish_on,
      ), $options);
    }
    if (!empty($unpublish_on) && ($unpublish_tokens = token_find_with_prefix($tokens, 'scheduler-unpublish'))) {
      $replacements += token_generate('date', $unpublish_tokens, array(
        'date' => $unpublish_on,
      ), $options);
    }
  }
  return $replacements;
}