如何在同一个 Realm 查询中查询两个字段?

How to query two fields in same Realm query?

我需要根据名字和姓氏从 Realm Db 中查找客户。目前,我有这样的查询:

RealmResults<CustomerModel> results = realm
            .where(CustomerModel.class)
            .or()
            .contains("firstname", input, Case.INSENSITIVE)
            .or()
            .contains("lastname", input, Case.INSENSITIVE)
            .or()
            .contains("addresses.street", input, Case.INSENSITIVE)
            .or()
            .contains("addresses.city", input, Case.INSENSITIVE)
            .or()
            .contains("addresses.postcode", input, Case.INSENSITIVE)
            .findAllSorted("customerLocalId", Sort.DESCENDING);

这不能正常工作,因为我的名字和姓氏之间有 OR。

因此,如果我想查找名为 John Doe 的用户,它不会找到它,但如果我只键入 John,它会找到它。

我该如何解决这个问题?

为什么不分开白色 space?

String filter = input.trim().replaceAll("\s+", " ");
String[] tokens = filter.split(" ");
RealmQuery<CustomerModel> query = realm.where(CustomerModel.class);

for(int i = 0, size = tokens.length; i < size; i++) {
    String token = tokens[i];
    if(i != 0) {
        query.or();
    }
    query.contains("firstname", token, Case.INSENSITIVE)
        .or()
        .contains("lastname", token, Case.INSENSITIVE)
        .or()
        .contains("addresses.street", token, Case.INSENSITIVE)
        .or()
        .contains("addresses.city", token, Case.INSENSITIVE)
        .or()
        .contains("addresses.postcode", token, Case.INSENSITIVE)        
}

RealmResults<CustomerModel> results = query
        .findAllSorted("customerLocalId", Sort.DESCENDING);

您需要使用群组:https://realm.io/docs/java/latest/#logical-operators

RealmResults<CustomerModel> results = realm
        .where(CustomerModel.class)
        .beginGroup()
        .contains("firstname", input, Case.INSENSITIVE)
        .contains("lastname", input, Case.INSENSITIVE)
        .endGroup()
        .or()
        .contains("addresses.street", input, Case.INSENSITIVE)
        .or()
        .contains("addresses.city", input, Case.INSENSITIVE)
        .or()
        .contains("addresses.postcode", input, Case.INSENSITIVE)
        .findAllSorted("customerLocalId", Sort.DESCENDING);