function openlayers_views_style_data::coalesce_groups in Openlayers 7.2

Coalesce features into single grouped feature when grouping is enabled.

openlayers_views_style_data specific

1 call to openlayers_views_style_data::coalesce_groups()

openlayers_views_style_data::map_features in modules/openlayers_views/views/openlayers_views_style_data.inc

File

modules/openlayers_views/views/openlayers_views_style_data.inc, line 384

This file holds style plugin for OpenLayers Views

Class

openlayers_views_style_data

@class Extension of the Views Plugin Style for OpenLayers

Code

function coalesce_groups($features, $handlers, $ds) {

  // Combine wkt into geometry collections if they are an array
  foreach ($features as &$feature) {
    if (is_array($feature['wkt'])) {
      if (count($feature['wkt']) > 1) {
        $feature['wkt'] = $this
          ->get_group_wkt($feature['wkt']);
      }
      else {
        $feature['wkt'] = $feature['wkt'][0];
      }
    }
  }

  // Process title and description for groups
  foreach ($features as $k => &$feature) {
    $feature['attributes']['name'] = $k;
    $feature['attributes'] = array_merge($feature['attributes'], $feature['features'][0]['attributes']);
    $formatted_features = array();
    foreach ($feature['features'] as $subfeature) {

      // Create name and description attributes.  Note that there are a
      // couple exceptions to using fields.
      $exceptions = array(
        '#row',
      );

      // Run the output through a theme.
      $formatted_features[] = theme('openlayers_views_group_display_item', array(
        'name' => isset($handlers[$ds['name_field']]) ? $subfeature['attributes'][$ds['name_field']] : FALSE,
        'description' => in_array($ds['description_field'], $exceptions) || isset($handlers[$ds['description_field']]) ? $subfeature['attributes'][$ds['description_field']] : FALSE,
      ));

      // Remove rendered rows to keep data size down for JS.
      if (in_array($ds['description_field'], $exceptions)) {
        unset($subfeature['attributes'][$ds['description_field']]);
      }
    }

    // Then run all gathered features through item_ist theme.
    $feature['attributes']['description'] = theme('item_list', array(
      'items' => $formatted_features,
    ));
  }
  return $features;
}