function calendar_plugin_style_ical::render in Calendar 6.2

Same name and namespace in other branches

1. 7 calendar_ical/calendar_plugin_style_ical.inc \calendar_plugin_style_ical::render()
2. 7.2 calendar_ical/calendar_plugin_style_ical.inc \calendar_plugin_style_ical::render()

File

calendar_ical/calendar_plugin_style_ical.inc, line 141

Class

calendar_plugin_style_ical

Default style plugin to render an iCal feed.

Code

function render() {
  require_once './' . drupal_get_path('module', 'calendar') . '/includes/calendar.inc';

  // Transfer the style options to the view object so they
  // can be easily accessed in the theme.
  $style_options = $this->options;
  $this->view->date_info->summary_field = $style_options['summary_field'];
  $this->view->date_info->description_field = $style_options['description_field'];
  $this->view->date_info->location_field = $style_options['location_field'];

  // Evaluate our argument values and figure out which
  // calendar display we need to create.
  $i = 0;
  foreach ($this->view->argument as $id => $argument) {
    if ($argument->field == 'date_argument') {

      // TODO Decide if we want to provide a date here or not.
      // Adding this now is to prevent fatal errors later if the
      // view is used in unexpected ways without a date being set.
      if (empty($argument->min_date)) {
        $value = $argument
          ->get_default_argument();
        $range = $argument->date_handler
          ->arg_range($value);
        $argument->min_date = $range[0];
        $argument->max_date = $range[1];
      }
      $this->view->date_info->granularity = !empty($argument->granularity) ? $argument->granularity : $argument->options['granularity'];
      $this->view->date_info->date_arg = !empty($this->view->args) ? $this->view->args[$argument->position] : '';
      $this->view->date_info->date_arg_pos = $i;
      $this->view->date_info->year = isset($argument->year) ? $argument->year : NULL;
      $this->view->date_info->month = isset($argument->month) ? $argument->month : NULL;
      $this->view->date_info->day = isset($argument->day) ? $argument->day : NULL;
      $this->view->date_info->week = isset($argument->week) ? $argument->week : NULL;
      $this->view->date_info->min_date = $argument->min_date;
      $this->view->date_info->max_date = $argument->max_date;

      // Stop after the first date argument, if there is more than one.
      break;
    }
    $i++;
  }

  // The ical display might have date filters instead of arguments.
  // If we missed getting a min date from date arguments, try date filters.
  if (empty($this->view->date_info->min_date)) {
    foreach ($this->view->filter as $id => $filter) {
      if ($filter->field == 'date_filter') {

        // TODO Decide if we want to provide a date here or not.
        // Adding this now is to prevent fatal errors later if the
        // view is used in unexpected ways without a date being set.
        if (empty($filter->min_date)) {
          $value = $filter
            ->default_value('value');
          $range = $filter->date_handler
            ->arg_range($value);
          $filter->min_date = $range[0];
          $filter->max_date = $range[1];
        }
        $this->view->date_info->granularity = !empty($filter->granularity) ? $filter->granularity : $filter->options['granularity'];
        $this->view->date_info->year = isset($filter->year) ? $filter->year : NULL;
        $this->view->date_info->month = isset($filter->month) ? $filter->month : NULL;
        $this->view->date_info->day = isset($filter->day) ? $filter->day : NULL;
        $this->view->date_info->week = isset($filter->week) ? $filter->week : NULL;
        $this->view->date_info->min_date = $filter->min_date;
        $this->view->date_info->max_date = $filter->max_date;
        if (empty($this->view->date_info->date_fields)) {
          $this->view->date_info->date_fields = array();
        }
        $this->view->date_info->date_fields = array_merge($this->view->date_info->date_fields, array_keys($filter->options['date_fields']));

        // Stop after the first date filter, if there is more than one.
        break;
      }
    }
    $i++;
  }

  // Render each field into an output array.
  $items = array();
  $calendar_fields = date_api_fields($this->view->base_table);
  $calendar_fields = array_keys($calendar_fields['alias']);
  foreach ($this->view->result as $num => $row) {
    $items[$num] = $row;

    // Store the raw date values before formatting the results.
    foreach ($row as $key => $value) {
      if (in_array($key, $calendar_fields)) {
        $items[$num]->calendar_fields->{$key} = $value;
      }
    }
    foreach ($this->view->field as $name => $field) {

      // Some fields, like the node edit and delete links, have no alias.
      $field_alias = $field->field_alias != 'unknown' ? $field->field_alias : $name;
      if (!empty($field) && is_object($field)) {
        $field_output = $field
          ->theme($row);
        $items[$num]->{$field_alias} = $field_output;
      }
    }
  }

  // Massage the resulting items into formatted calendar items.
  $items = calendar_build_nodes($this->view, $items);

  // 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 = $function($this->view)) {
        foreach ($feeds as $feed) {
          $items = $feed;
        }
      }
    }
  }
  return theme($this
    ->theme_functions(), $this->view, $this->options, $items);
}