[英]How to query two fields in same Realm query?
我需要根據姓氏和名字找到Realm Db的客戶。 目前,我有這樣的查詢:
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);
這不能正常工作,因為我在名字和姓氏之間有OR。
所以,如果我想找到名為John Doe的用戶,它就找不到它,但如果我只輸入John就會找到它。
我怎么能解決這個問題?
為什么不跨越白色空間?
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);
您需要使用組: 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);
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