getListByFilterEx method

Future<List<T>> getListByFilterEx(String? correlationId, Map<String, dynamic>? filter, Map<String, dynamic>? sort)

Gets a list of data items retrieved by a given filter and sorted according to sort parameters.

This method shall be called by a public getListByFilter method from child class that receives FilterParams and converts them into a filter function.

• correlationId (optional) transaction id to trace execution through call chain.
• filter (optional) a filter JSON object
• sort (optional) sorting JSON object Return Future that receives a data list. Throw error

Implementation

Future<List<T>> getListByFilterEx(String? correlationId,
    Map<String, dynamic>? filter, Map<String, dynamic>? sort) async {
  // Configure options
  var query = mngquery.SelectorBuilder();
  var selector = <String, dynamic>{};
  if (filter != null && filter.isNotEmpty) {
    selector[r'$query'] = filter;
  }
  if (sort != null) {
    selector['orderby'] = sort;
  }

  query.raw(selector);
  var items = <T>[];

  var results = await collection?.find(query).toList() ?? [];
  for (var item in results) {
    items.add(convertToPublic(item));
  }

  logger.trace(
      correlationId, 'Retrieved %d from %s', [items.length, collectionName]);
  return items;
}