gistfile1.txt

typedef NS_ENUM(NSUInteger, RoomState) {
	RoomStateActive,
	RoomStatePendingCompletion,
	RoomStateCompleted
};

@interface SCRoom : RLMObject
@property NSNumber<RLMInt> *serverId;
@property NSString *name;
@property NSString *providerName;
@property NSNumber<RLMInt> *roomUserId;
@property NSString *userName;
@property (readonly) NSArray <SCMessage> *messages;
@property NSDate *lastMessageDate;
@property (nullable) NSString *session;
@property (nullable) NSString *state;
@property (readonly) RoomState currentState;
@property (nullable) RLMArray<SCUser> *users;
@property (nullable) RLMArray<SCUser> *admins;

@end
RLM_ARRAY_TYPE(SCRoom)



@implementation SCRoom

+ (NSString *)primaryKey
{
    return @"serverId";
}

- (NSArray<SCMessage> *)messages
{
	return (NSArray<SCMessage> *)[self linkingObjectsOfClass:@"SCMessage" forProperty:@"room"];
}

- (RoomState)currentState
{
	//active, pending_completion, completed
	if ([self.state isEqualToString:@"active"]) {
		return RoomStateActive;
	} else if ([self.state isEqualToString:@"pending_completion"]) {
		return RoomStatePendingCompletion;
	} else {
		return  RoomStateCompleted;
	}

}

@end



@interface SCUser : RLMObject
@property NSNumber<RLMInt> *serverId;
@property NSString *name;
@property NSString *providerId;
@property (nullable) NSString *avatarURLString;
@property BOOL isOnline;
- (nullable NSURL *)avatarURL;

@end


@implementation SCUser

+ (NSString *)primaryKey
{
    return @"serverId";
}

- (nullable NSURL *)avatarURL
{
	if (self.avatarURLString && ![self.avatarURLString isEqualToString:@"/images/thumb/missing.png"]) {
		return [NSURL URLWithString:self.avatarURLString];
	}
	return nil;
}

@end