Update statement in Realm android

Question

How should i update a already existing value using realm DB in android?

I have been trying to update it but it is adding as a new value only not overwritting it

Answer 1

Another way to update an existing object with all its fields in your Realm DB is using the method realm.copyToRealmOrUpdate():

Object obj = new Object(); obj.setField1(field1); obj.setField2(field2); realm.beginTransaction(); realm.copyToRealmOrUpdate(obj); realm.commitTransaction(); 

If your object has a Primary Key, this method will update the object automatically without duplicate objects :)

More info: copyToRealmOrUpdate()

Answer 2

You can use insertOrUpdate method to do this.Hope this helps

  Realm.getDefaultInstance().executeTransaction(new Realm.Transaction() {                 @Override                 public void execute(Realm realm) {                      objectToEdit.setNewValue("string");                     realm.insertOrUpdate();                 }             });