Multiple Realm File opened on iOS - ios

Question

I've an application when users can save their ECG. I want to split Realm usage by user. I'm developing a user.realm (referenced as _realmUsers) to save all the users that login on application, and a userID.realm (referenced as _realm and They will be once per user that login on application) where user saves his data. How to achieve that? Because if I write things like
Initialization of both Realms
+ (void)initializeRealmForUsers
{
// Open the encrypted Realm file
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.fileURL = [[[config.fileURL URLByDeletingLastPathComponent]
URLByAppendingPathComponent:USER_REALM]
URLByAppendingPathExtension:#"realm"];
NSError *err;
RLMRealm *realmUser = [RLMRealm realmWithConfiguration:config error:&err];
if(err == nil && realmUser != nil)
[sharedInstance setRealmUsers:realmUser];
}
+ (void)initializeDataRealmWithUserID:(NSString*)userUUID
{
// Open the encrypted Realm file
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.fileURL = [[[config.fileURL URLByDeletingLastPathComponent]
URLByAppendingPathComponent:userUUID]
URLByAppendingPathExtension:#"realm"];
NSError *err;
RLMRealm *realmUser = [RLMRealm realmWithConfiguration:config error:&err];
if(err == nil && realmUser != nil)
[sharedInstance setRealmUsers:realmUser];
[[RealmManager sharedInstance] deleteIncompleteExam];
}
Creation of User:
- (User *)createUserWithData:(NSDictionary *)data
{
[_realmUsers beginWriteTransaction];
User *newUser = [User new];
[newUser setEmail:[data objectForKey:USER_EMAIL]];
[newUser setPassword:[CryptoUtils MD5String:[data
objectForKey:USER_PASSWORD]]];
[newUser setLogged:#NO];
[_realmUsers addOrUpdateObject:newUser];
[_realmUsers commitWriteTransaction];
return newUser;
}
Creation of Patient, a record type of the second realm (the specific-user one):
- (Patient *)createPatientWithData:(NSDictionary *)data forUser:(BOOL)forUser
{
Patient *newPatient;
if([[RealmManager sharedInstance] getSelfPatient] == nil)
newPatient = [Patient new];
else
newPatient = [[RealmManager sharedInstance] getSelfPatient];
[_realm beginWriteTransaction];
[newPatient setFirstName:[data objectForKey:PATIENT_FIRSTNAME]];
[newPatient setLastName:[data objectForKey:PATIENT_LASTNAME]];
[newPatient setSelfPatient:forUser];
[_realm addOrUpdateObject:newPatient];
[_realm commitWriteTransaction];
return newPatient;
}
and Login:
- (User *)loginWithUsername:(NSString *)email password:(NSString *)password andData:(NSDictionary *)userData
{
User *user = [self userWithUsername:email];
if(user == nil){
NSMutableDictionary *mutableData = [NSMutableDictionary new];
[mutableData addEntriesFromDictionary:userData];
[mutableData setObject:password forKey:USER_PASSWORD];
user = [self createUserWithData:mutableData];
} else{
[_realmUsers beginWriteTransaction];
[user setPassword:[CryptoUtils MD5String:password]];
[_realmUsers commitWriteTransaction];
}
[_realmUsers beginWriteTransaction];
[user setLogged:#YES];
[_realmUsers commitWriteTransaction];
[RealmManager initializeDataRealmWithUserID:[user uuid]];
[self createPatientWithData:#{PATIENT_FIRSTNAME : [userData objectForKey:PATIENT_FIRSTNAME], PATIENT_LASTNAME : [userData objectForKey:PATIENT_LASTNAME]} forUser:YES];
return user;
}
After Login, my Calls Like [User allObjects] (user must be on user.realm) [Patient allObject](patients must be on userID.realm) gives me empty result.

Answer 1

You can access datas from different realm by
[User allObjectsInRealm: user.realm]
[User objectsInRealm:user.realm where:#""];