whereQuery method
Find and return a list of Query's matching a given condition.
Implementation
List<QueryBase<dynamic, dynamic>>? whereQuery(WhereCallback findCallback) {
final List<QueryBase<dynamic, dynamic>> result = [];
for (final query in _queryCache.values) {
if (findCallback(query)) {
result.add(query);
}
}
return result.isNotEmpty ? result : null;
}