deletionAction method

Implementation

void deletionAction(String method) {
  // cleanup the state after deletion
  List<String> varsToDelete = [];
  switch (method) {
    case 'Ignored':
      varsToDelete.addAll(getIgnored(ref));
    // two ways to update: read it from the stdout glimpse or update it with the information
    // choose 2
    case 'Variable':
      String select = ref.read(selectedProvider);
      varsToDelete.add(select);
    case 'Vars with Missing':
      varsToDelete.addAll(getMissing(ref));
    case 'Obs with Missing':
      // variables won't be deleted so return directly
      return;
    default:
      showUnderConstruction(context);
  }
  for (var v in varsToDelete) {
    if (deleteVar(ref, v)) {
      debugText('  DELETED', v);
    }
  }
}