function advagg_update_7200 in Advanced CSS/JS Aggregation 7.2

Upgrade AdvAgg previous versions (6.x-1.x and 7.x-1.x) to 7.x-2.x.

File

./advagg.install, line 376

Handles Advanced Aggregation installation and upgrade tasks.

Code

function advagg_update_7200(&$sandbox) {

  // Check and see if new tables exist.
  $table_names = array_keys(advagg_schema());
  $all_tables_exist = TRUE;
  foreach ($table_names as $table_name) {
    if (!db_table_exists($table_name)) {
      $all_tables_exist = FALSE;
    }
  }

  // Bail if needed DB Tables exist.
  if ($all_tables_exist) {
    return t('Nothing needed to happen in Advanced CSS/JS Aggregation.');
  }

  // Remove all old advagg variables.
  db_delete('variable')
    ->condition('name', 'advagg%', 'LIKE')
    ->execute();

  // Remove old schema.
  $tables_to_remove = array(
    'cache_advagg',
    'cache_advagg_files_data',
    'cache_advagg_bundle_reuse',
    'advagg_files',
    'advagg_bundles',
  );
  foreach ($tables_to_remove as $table_to_remove) {
    if (db_table_exists($table_to_remove)) {
      db_drop_table($table_to_remove);
    }
  }

  // Install new schema.
  drupal_install_schema('advagg');
  return t('Upgraded Advanced CSS/JS Aggregation to 7.x-2.x.');
}