Я хочу записать массив объектов Question в файл, но каким-то образом writeToFile ничего не делает. Вопрос имеет владельца и массив объектов ответа. Ответ также имеет владельца. Все три из них соответствуют протоколу NSCoding (насколько я знаю).
Из приведенного ниже кода результат возвращает НЕТ. Понятия не имею, что я делаю неправильно, так как я внедряю NSCoding для всего, верно?
Question.h
#import <Foundation/Foundation.h>
#import "Owner.h"
@interface Question : NSObject <NSCoding> {
NSString *questionId;
NSString *questionRevision;
NSString *text;
NSDate *date;
NSMutableArray *answers;
NSString *page;
NSNumber *questionLocation;
Owner *owner;
}
@property (nonatomic, retain) NSString *questionId;
@property (nonatomic, retain) NSString *questionRevision;
@property (nonatomic, retain) NSString *text;
@property (nonatomic, retain) NSDate *date;
@property (nonatomic, retain) NSMutableArray *answers;
@property (nonatomic, retain) NSString *page;
@property (nonatomic, retain) NSNumber *questionLocation;
@property (nonatomic, retain) Owner *owner;
@end
Question.m
#import "Question.h"
#import "Answer.h"
@implementation Question
@synthesize questionId, questionRevision, text, date, answers, page, questionLocation, owner;
- (void)encodeWithCoder:(NSCoder *)coder
{
//[super encodeWithCoder:coder];
[coder encodeObject:questionId forKey:@"questionId"];
[coder encodeObject:questionRevision forKey:@"questionRevision"];
[coder encodeObject:text forKey:@"text"];
[coder encodeObject:date forKey:@"date"];
[coder encodeObject:answers forKey:@"answers"];
[coder encodeObject:page forKey:@"page"];
[coder encodeObject:questionLocation forKey:@"questionLocation"];
[coder encodeObject:owner forKey:@"owner"];
}
- (id)initWithCoder:(NSCoder *)decoder
{
//self = [super initWithCoder:decoder];
self = [super init];
self.questionId = [decoder decodeObjectForKey:@"questionId"];
self.questionRevision = [decoder decodeObjectForKey:@"questionRevision"];
self.text = [decoder decodeObjectForKey:@"text"];
self.date = [decoder decodeObjectForKey:@"date"];
self.answers = [decoder decodeObjectForKey:@"answers"];
self.page = [decoder decodeObjectForKey:@"page"];
self.questionLocation = [decoder decodeObjectForKey:@"questionLocation"];
self.owner = [decoder decodeObjectForKey:@"owner"];
}
@end
Answer.h
#import <Foundation/Foundation.h>
#import "Owner.h"
@interface Answer : NSObject <NSCoding> {
Owner *owner;
NSString *text;
NSDate *date;
}
@property (nonatomic, retain) Owner *owner;
@property (nonatomic, retain) NSString *text;
@property (nonatomic, retain) NSDate *date;
@end
Answer.m
#import "Answer.h"
@implementation Answer
@synthesize owner, text, date;
- (void)encodeWithCoder:(NSCoder *)coder
{
//[super encodeWithCoder:coder];
[coder encodeObject:owner forKey:@"owner"];
[coder encodeObject:text forKey:@"text"];
[coder encodeObject:date forKey:@"date"];
}
- (id)initWithCoder:(NSCoder *)decoder
{
//self = [super initWithCoder:decoder];
self = [super init];
self.owner = [decoder decodeObjectForKey:@"owner"];
self.text = [decoder decodeObjectForKey:@"text"];
self.date = [decoder decodeObjectForKey:@"date"];
}
@end
Owner.h
#import <Foundation/Foundation.h>
@interface Owner : NSObject <NSCoding> {
NSString *name;
NSString *photoFileName;
}
@property (nonatomic, retain) NSString *name;
@property (nonatomic, retain) NSString *photoFileName;
@end
Owner.m
#import "Owner.h"
@implementation Owner
@synthesize name, photoFileName;
- (void)encodeWithCoder:(NSCoder *)coder
{
//[super encodeWithCoder:coder];
[coder encodeObject:name forKey:@"name"];
[coder encodeObject:photoFileName forKey:@"photoFileName"];
}
- (id)initWithCoder:(NSCoder *)decoder
{
//self = [super initWithCoder:decoder];
self = [super init];
self.name = [decoder decodeObjectForKey:@"name"];
self.photoFileName = [decoder decodeObjectForKey:@"photoFileName"];
}
@end
Соответствующая строка кода
BOOL result = [questions writeToFile:@"Users/brunoscheele/Desktop/questions.plist" atomically:YES];