iOS OC，如何將RLMObject轉換為NSDictionary，NSArray？

Question

怎么把RLMObject轉換成NSDictionary ？ 這是我的代碼：

NSString *imei = [Utils getUUID];

NSPredicate *pred = [NSPredicate predicateWithFormat:@"imei = %@",imei];

RLMResults<RLMRequestHeaderModel *> *models = [RLMRequestHeaderModel objectsWithPredicate:pred];

RLMRequestHeaderModel *header = models.firstObject;

// NSDictionary *headerDict = ...

return headerDict;

Answer 1

我已經使用此類解決了這個問題。 與先前的答案非常相似，但是在這種情況下，我為RLMArray對象或內部RLMObjects添加了特殊處理

@implementation RLMObject (NSDictionary)

- (NSDictionary*) dictionaryRepresentation{
    NSMutableDictionary *headerDictionary = [NSMutableDictionary dictionary];
    RLMObjectSchema *schema = self.objectSchema;
    for (RLMProperty *property in schema.properties) {
        if([self[property.name] isKindOfClass:[RLMArray class]]){
            NSMutableArray *arrayObjects = [[NSMutableArray alloc] init];
            RLMArray *currentArray = self[property.name];
            NSInteger numElements = [currentArray count];
            for(int i = 0; i<numElements; i++){
                [arrayObjects addObject:[[currentArray objectAtIndex:i] dictionaryRepresentation]];
            }
            headerDictionary[property.name] = arrayObjects;
        }else if([self[property.name] isKindOfClass:[RLMObject class]]){
            RLMObject *currentElement = self[property.name];
            headerDictionary[property.name] = [currentElement dictionaryRepresentation];
        }else{
           headerDictionary[property.name] = self[property.name];
        }

    }
    return headerDictionary;
}

@end

讓我知道這是否可以幫助您;）

Answer 2

您可以使用Realm的鍵值編碼屬性輕松將所有值提取到NSDictionary ：

NSMutableDictionary *headerDictionary = [NSMutableDictionary dictionary];

RLMSchema *schema = header.objectSchema;
for (RLMProperty *property in schema.properties) {
   headerDictionary[property.name] = header[property.name];
}

讓我知道您是否需要任何其他說明！