function openlayers_update_7207 in Openlayers 7.2

Migrate configured projections so that other projections than those of EPSG can be used, too.

File

./openlayers.install, line 503

This file holds the functions for the installing and enabling of the openlayers module.

Code

function openlayers_update_7207() {
  openlayers_update_create_projection_table();

  // Migrate stored layers
  foreach (openlayers_layers_load(TRUE) as $key => $layer) {
    $projections = array();

    // Takeover srs key that no longer exists and migrate it to a projection
    if ($layer instanceof openlayers_layer_type_wms && array_key_exists('srs', $layer->data['options']) && !in_array($layer->data['options']['srs'], $layer->data['projection'])) {
      $projections[] = $layer->data['options']['srs'];
    }
    unset($layer->data['options']['srs']);
    foreach ($layer->data['projection'] as $projection) {
      if (is_string($projection)) {
        $projections[] = $projection;
      }
      else {
        throw new DrupalUpdateException("Unsupported projection type encountered in layer " . $key);
      }
    }
    $layer->data['projection'] = $projections;
    ctools_export_crud_save('openlayers_layers', $layer);
  }

  // The code for the projection changed but its semantics stayed.
  // Only update the display projection as servers might be in use that don't yet support the new code.
  foreach (openlayers_maps(TRUE) as $key => $map) {
    if ($map->data['displayProjection'] === 'EPSG:900913') {
      $map->data['displayProjection'] = 'EPSG:3857';
    }
    ctools_export_crud_save('openlayers_maps', $map);
  }
}