loadWith<T extends Entity> method

Future<T?> loadWith<T extends Entity>(Iterable<String>? fields, T newInstance(String oid), String? whereClause, [ Map<String, dynamic>? whereValues, String? fromClause, String? shortcut, AccessOption? option, ])

Loads the first entity of the given criteria, or returns null if none. *

• • whereClause - the where clause.
• Note: it shall not include where.
• Example: "$fdType" = 23
• • fromClause - if null, the entity's table is assumed.
• Note: it shall not include from.
• Example: "$otTask" inner join "$otGrant"
• • shortcut - the table shortcut to prefix the column names.
• Default: none. Useful if you joined other tables in fromClause.
• Note: shortcut is case insensitive.

Implementation

Future<T?> loadWith<T extends Entity>(
    Iterable<String>? fields, T newInstance(String oid),
    String? whereClause, [Map<String, dynamic>? whereValues,
    String? fromClause, String? shortcut, AccessOption? option]) async {
  Set<String>? fds;
  if (fields != null) {
    fds = LinkedHashSet<String>();
    fds..add(fdOid)..addAll(fields);
  }

  final row = await StreamUtil.first(queryFrom(fds,
      fromClause ?? newInstance('*').otype,
      _limit1(whereClause), whereValues, shortcut, option));
    return toEntity(row, fields, newInstance);
}