function calendar_plugin_row::explode_values in Calendar 7.3

1 call to calendar_plugin_row::explode_values()

calendar_plugin_row::render in includes/calendar_plugin_row.inc

Render a row object. This usually passes through to a theme template of some form, but not always.

File

includes/calendar_plugin_row.inc, line 531

Contains the Calendar row style plugin.

Class

calendar_plugin_row

Plugin which creates a view on the resulting object and formats it as a Calendar node.

Code

function explode_values($event) {
  $rows = array();
  $date_info = $this->date_argument->view->date_info;
  $item_start_date = $event->date_start;
  $item_end_date = $event->date_end;
  $to_zone = $event->to_zone;
  $db_tz = $event->db_tz;
  $granularity = $event->granularity;
  $increment = $event->increment;

  // Now that we have an 'entity' for each view result, we need
  // to remove anything outside the view date range,
  // and possibly create additional nodes so that we have a 'node'
  // for each day that this item occupies in this view.
  $now = max($date_info->min_zone_string, $item_start_date
    ->format(DATE_FORMAT_DATE));
  $to = min($date_info->max_zone_string, $item_end_date
    ->format(DATE_FORMAT_DATE));
  $next = new DateObject($now . ' 00:00:00', $date_info->display_timezone);
  if ($date_info->display_timezone_name != $to_zone) {

    // Make $start and $end (derived from $node) use the timezone $to_zone, just as the original dates do.
    date_timezone_set($next, timezone_open($to_zone));
  }
  if (empty($to) || $now > $to) {
    $to = $now;
  }

  // $now and $next are midnight (in display timezone) on the first day where node will occur.
  // $to is midnight on the last day where node will occur.
  // All three were limited by the min-max date range of the view.
  $pos = 0;
  while (!empty($now) && $now <= $to) {
    $entity = clone $event;

    // Get start and end of current day.
    $start = $next
      ->format(DATE_FORMAT_DATETIME);
    date_modify($next, '+1 day');
    date_modify($next, '-1 second');
    $end = $next
      ->format(DATE_FORMAT_DATETIME);

    // Get start and end of item, formatted the same way.
    $item_start = $item_start_date
      ->format(DATE_FORMAT_DATETIME);
    $item_end = $item_end_date
      ->format(DATE_FORMAT_DATETIME);

    // Get intersection of current day and the node value's duration (as strings in $to_zone timezone).
    $entity->calendar_start = $item_start < $start ? $start : $item_start;
    $entity->calendar_end = !empty($item_end) ? $item_end > $end ? $end : $item_end : $entity->calendar_start;

    // Make date objects
    $entity->calendar_start_date = date_create($entity->calendar_start, timezone_open($to_zone));
    $entity->calendar_end_date = date_create($entity->calendar_end, timezone_open($to_zone));

    // Change string timezones into
    // calendar_start and calendar_end are UTC dates as formatted strings
    $entity->calendar_start = date_format($entity->calendar_start_date, DATE_FORMAT_DATETIME);
    $entity->calendar_end = date_format($entity->calendar_end_date, DATE_FORMAT_DATETIME);
    $entity->calendar_all_day = date_is_all_day($entity->calendar_start, $entity->calendar_end, $granularity, $increment);
    unset($entity->calendar_fields);
    if (isset($entity) && empty($entity->calendar_start)) {

      // if no date for the node and no date in the item
      // there is no way to display it on the calendar
      unset($entity);
    }
    else {
      $entity->date_id .= '.' . $pos;
      $rows[] = $entity;
      unset($entity);
    }
    date_modify($next, '+1 second');
    $now = date_format($next, DATE_FORMAT_DATE);
    $pos++;
  }
  return $rows;
}