findContactsWithTel method
Implementation
Set<int> findContactsWithTel(String queryString) {
if (queryString[0] == '0') {
queryString = queryString.substring(1);
}
final herdersMatch = all
.where((c) => c.phone.toString().trim().contains(queryString.trim()))
.toList();
final herdersMatchIds = Set.of(<int>{});
for (final herder in herdersMatch) {
herdersMatchIds.add(herder.id);
}
return herdersMatchIds;
}