collectionQueries method

List<Query<DynamicMap>>? collectionQueries(List<Object?> items, Query<DynamicMap> generator(), ModelQueryFilter filter, ModelAdapterCollectionQuery query, [ FirestoreModelAdapterBase? adapter, ])

Implementation

List<Query<DynamicMap>>? collectionQueries(
  List<Object?> items,
  Query<DynamicMap> Function() generator,
  ModelQueryFilter filter,
  ModelAdapterCollectionQuery query, [
  FirestoreModelAdapterBase? adapter,
]) {
  if (!items.every((e) => enabledQuery(e, filter, query, adapter))) {
    return null;
  }
  switch (filter.type) {
    case ModelQueryFilterType.arrayContainsAny:
      final list = items
          .map((e) => convertQueryValue(e, filter, query, adapter))
          .toList();
      final queries = <Query<DynamicMap>>[];
      for (var i = 0; i < list.length; i += _kCollectionQuerySplitCount) {
        queries.add(
          generator().where(
            filter.key!,
            arrayContainsAny: list
                .sublist(
                  i,
                  min(i + _kCollectionQuerySplitCount, list.length),
                )
                .toList(),
          ),
        );
      }
      return queries;
    case ModelQueryFilterType.whereIn:
      final list = items
          .map((e) => convertQueryValue(e, filter, query, adapter))
          .toList();
      final queries = <Query<DynamicMap>>[];
      for (var i = 0; i < list.length; i += _kCollectionQuerySplitCount) {
        queries.add(
          generator().where(
            filter.key!,
            whereIn: list
                .sublist(
                  i,
                  min(i + _kCollectionQuerySplitCount, list.length),
                )
                .toList(),
          ),
        );
      }
      return queries;
    case ModelQueryFilterType.whereNotIn:
      final list = items
          .map((e) => convertQueryValue(e, filter, query, adapter))
          .toList();
      final queries = <Query<DynamicMap>>[];
      for (var i = 0;
          i < list.length;
          i += _kCollectionQuerySplitCountOnNotIn) {
        queries.add(
          generator().where(
            filter.key!,
            whereNotIn: list
                .sublist(
                  i,
                  min(i + _kCollectionQuerySplitCountOnNotIn, list.length),
                )
                .toList(),
          ),
        );
      }
      return queries;
    case ModelQueryFilterType.geoHash:
      final list = items
          .map((e) => convertQueryValue(e, filter, query, adapter))
          .toList();
      final queries = <Query<DynamicMap>>[];
      for (var i = 0; i < list.length; i++) {
        final hash = list[i].toString();
        queries.add(
          generator()
              .orderBy(
            filter.key!,
          )
              // ignore: prefer_interpolation_to_compose_strings
              .startAt([hash]).endAt([hash + "\uf8ff"]),
        );
      }
      return queries;
    default:
      return [
        generator(),
      ];
  }
}