function field_has_data

Determine whether a field has any data.

Parameters

$field: A field structure.

Return value

TRUE if the field has data for any entity; FALSE otherwise.:

Related topics

File

core/modules/field/field.module, line 1234

Attach custom data fields to Backdrop entities.

Code

function field_has_data($field) {
  $query = new EntityFieldQuery();
  $query = $query->fieldCondition($field)
    ->range(0, 1)
    ->count()
    // Neutralize the 'entity_field_access' query tag added by
    // field_sql_storage_field_storage_query(). The result cannot depend on the
    // access grants of the current user.
    ->addTag('DANGEROUS_ACCESS_CHECK_OPT_OUT');

  return (bool) $query
  ->execute() || (bool) $query
  ->age(FIELD_LOAD_REVISION)
    ->execute();
}