Realm Update failed - Android

​​Ask Question​​

up vote 0 down vote ​​favorite​​

I'm using realm for my android apps, So I want to update my Bill object using the same Primary key, but ended with

FATAL EXCEPTION: main Process: com.example.rikirikmen.billsplit, PID: 22045 io.realm.exceptions.RealmPrimaryKeyConstraintException: Value already exists: 1

realm.executeTransaction(new Realm.Transaction() {
                    @Override
                    public void execute(Realm realm) {
                        Bill updateBill = realm.where(Bill.class).equalTo("Bill_ID", bill).findFirst();
                        DetailMenu menu = realm.createObject(DetailMenu.class);

                        menu.setMenuID(MenuID);
                        menu.setMenuName(String.valueOf(menuName.getText()));
                        menu.setMenuPrice(Price);
                        menu.setQuantity(Qty);
                        for (int i = 0; i < adapter.getPersonMenuObjList().size(); i++) {
                            PersonInMenu pim = realm.createObject(PersonInMenu.class);
                            pim.setPersonID(adapter.getPersonMenuObjList().get(i).getPersonID());
                            pim.setStatus(adapter.getPersonMenuObjList().get(i).isStatus());
                            menu.personInMenus.add(pim);
                        }

                        updateBill.detailmenu.add(menu);
                        realm.copyToRealmOrUpdate(updateBill);
                    }
                });

​​java​​​ ​android​​​ ​​realm​​

​​share​​​​improve this question​​

​​edited Jun 8 '16 at 19:38​​

​​Rahul Sinha​​

511513

asked Jun 8 '16 at 14:35

​​Riki Rikmen​​

156

•  
  what do you mean ? i need to createobject? the object already created in other activity before.. i just want to update the object. – ​​Riki Rikmen​​ Jun 8 '16 at 15:07
  
•  
  what do you mean inside transaction ? actually realm has create a new method realm.executetransaction for replacing realm.begintransaction and commit – ​​Riki Rikmen​​ Jun 8 '16 at 15:37
  

add a comment

1 Answer

​​ active​​​ ​​ oldest​​​ ​​ votes​​

up vote 0 down vote accepted

​​Do this​​:

realm.executeTransaction(new Realm.Transaction() {
                @Override
                public void execute(Realm realm) {
                    Bill updateBill = realm.where(Bill.class).equalTo("Bill_ID", bill).findFirst();
                    DetailMenu menu = new DetailMenu();
                    RealmList<PersonInMenu> personInMenus = new RealmList<>(); //added line
                    menu.personInMenus = personInMenus; //added line
                    menu.setMenuID(MenuID);
                    menu.setMenuName(String.valueOf(menuName.getText()));
                    menu.setMenuPrice(Price);
                    menu.setQuantity(Qty);
                    for (int i = 0; i < adapter.getPersonMenuObjList().size(); i++) {
                        PersonInMenu pim = new PersonInMenu();
                        pim.setPersonID(adapter.getPersonMenuObjList().get(i).getPersonID());
                        pim.setStatus(adapter.getPersonMenuObjList().get(i).isStatus());
                        menu.personInMenus.add(pim);
                    }

                    updateBill.detailmenu.add(menu);
                    realm.copyToRealmOrUpdate(updateBill);
                }
            });

Although if you're hesitant about saving detached objects to the Realm through ​​copyToRealmOrUpdate()​​​, then use the ​​appropriate override for createObject()​​.

If you use ​​createObject(clazz, primaryKey)​​​ then you won't need ​​copyToRealmOrUpdate()​​ in this case.

​​share​​​​improve this answer​​

​​edited Jun 11 '16 at 12:39​​

answered Jun 8 '16 at 20:04

​​EpicPandaForce​​

42k13115216

•  
  thankyou for your advice, actually i dont know its working or not.. i just got new error ​​Process: com.example.rikirikmen.billsplit, PID: 31338 java.lang.NullPointerException: Attempt to invoke virtual method 'boolean io.realm.RealmList.add(io.realm.RealmModel)' on a null object reference at com.example.rikirikmen.billsplit.DialogActivity$1$1.execute(DialogActivity.java:101)​​ – ​​Riki Rikmen​​ Jun 11 '16 at 11:10
  
•  
  my object are filled, i dont know where is wrong. here is the log ​​06-11 18:02:56.785 31338-31338/com.example.rikirikmen.billsplit I/Object: 6 true 06-11 18:02:56.785 31338-31338/com.example.rikirikmen.billsplit I/Object: 7 true 06-11 18:02:56.785 31338-31338/com.example.rikirikmen.billsplit I/Object: 8 false 06-11 18:02:56.785 31338-31338/com.example.rikirikmen.billsplit I/Object: 9 false 06-11 18:02:56.785 31338-31338/com.example.rikirikmen.billsplit I/Object: 10 false​​ – ​​Riki Rikmen​​ Jun 11 '16 at 11:10
  
•  
  The ​​personInMenus​​ is null by default and I forgot to set it to be a ​​RealmList<T>​​, added modified code – ​​EpicPandaForce​​ Jun 11 '16 at 12:40
  
• 1
  
  thankyou EpicPandaForce, you are Realm Master haha.. marked it as answer – ​​Riki Rikmen​​ Jun 11 '16 at 13:08 ​​https://stackoverflow.com/questions/37705565/realm-update-failed-android​​