function calendar_views_pre_view in Calendar 5.2

Same name and namespace in other branches

1. 5 calendar.module \calendar_views_pre_view()
2. 6.2 includes/calendar.views.inc \calendar_views_pre_view()
3. 7 includes/calendar.views.inc \calendar_views_pre_view()
4. 7.2 includes/calendar.views.inc \calendar_views_pre_view()

Implementation of hook_views_pre_view()

File

./calendar.module, line 315

Adds calendar filtering and displays to Views.

Code

function calendar_views_pre_view(&$view, &$items) {
  require_once './' . drupal_get_path('module', 'calendar') . '/calendar.theme';

  // Construct a formatted title for the view from the last calendar
  // argument encountered.
  $view->subtitle = theme('calendar_nav_title', $view->calendar_type, $view);

  // If this is a view with calendar arguments but not a calendar view,
  // add navigation to the top of the view and return.
  if (!calendar_is_calendar($view) && calendar_has_calendar_args($view)) {
    return theme('calendar_nav', $view, $view->build_type != 'block');
  }
  elseif (!calendar_is_calendar($view) || !calendar_has_calendar_args($view)) {
    return;
  }
  if ($view->build_type == 'block' || $view->calendar_type == 'year') {
    $view->mini = TRUE;
  }

  // Don't do anything in summary views.
  if ($summary = !empty($items) && array_key_exists('num_nodes', $items[0])) {
    return;
  }

  // Don't do anything if this isn't a calendar component.
  if (!calendar_has_calendar_args($view) || empty($view->args) && !calendar_is_calendar_arg($view) && $view->argument[0]['argdefault'] != 2) {
    return;
  }
  require_once './' . drupal_get_path('module', 'calendar') . '/calendar.inc';
  $display_formats = variable_get('calendar_display_format_' . $view->name, array(
    'year' => 'calendar',
    'month' => 'calendar',
    'week' => 'calendar',
    'day' => 'calendar',
    'block' => 'calendar',
  ));

  // Massage the resulting items into formatted calendar items.
  $items = calendar_build_nodes($view, $items, $display_formats[$view->calendar_type]);

  // Merge in items from other sources.
  foreach (module_implements('calendar_add_items') as $module) {
    $function = $module . '_calendar_add_items';
    if (function_exists($function)) {
      if ($feeds = $function($view)) {
        foreach ($feeds as $feed) {
          $items[$feed->calendar_start][] = $feed;
        }
      }
    }
  }

  // Sort the results -- sort needed if they are to be displayed
  // in a list or other non-calendar format, since sorting was
  // clobbered by adding in feeds and breaking items up into
  // individual days.
  $sort = '';
  $fields = array_keys(calendar_fields());
  foreach ($view->field as $field) {
    if (in_array($field['field'], $fields)) {
      foreach ($view->sort as $sort) {
        if ($sort['field'] = $field['field']) {
          $sort = $sort['sortorder'];
          break;
        }
      }
    }
  }
  if (!empty($sort)) {
    if ($sort == 'DESC') {
      krsort($items);
    }
    else {
      ksort($items);
    }
  }
  $nodes = array();
  foreach ($items as $date => $values) {
    foreach ($values as $node) {
      $nodes[] = $node;
    }
  }
  $items = $nodes;

  // If this is a calendar plugin theme view, make sure empty results
  // will produce blank calendar page
  if (array_key_exists($view->page_type, calendar_view_types())) {
    if (!$items && $view->build_type == 'page' && $view->year && $display_formats[$view->calendar_type] == 'calendar') {
      $view->page_empty = check_markup($view->page_header, $view->page_header_format, FALSE) . check_markup($view->page_empty, $view->page_empty_format, FALSE);
    }
  }
  if (array_key_exists($view->block_type, calendar_view_types())) {
    if (!$items && $view->build_type == 'block' && $view->year && $display_formats[$view->calendar_type] == 'calendar') {
      $view->block_empty = check_markup($view->block_header, $view->block_header_format, FALSE) . check_markup($view->block_empty, $view->block_empty_format, FALSE);
    }
  }
}