objects conforme a nscoding no escribirátofile
Quiero escribir una matriz de objetos Question para archivar, pero de alguna manera writeToFile no está haciendo nada. Una pregunta tiene un propietario y una matriz de objetos de respuesta. Una respuesta también tiene un propietario. Los tres se ajustan al protocolo NSCoding (que yo sepa).
Del siguiente código, el resultado devuelve NO. No tengo idea de lo que estoy haciendo mal, ya que estoy implementando NSCoding para todo, ¿verdad?
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
Línea de código relevanteBOOL result = [questions writeToFile:@"Users/brunoscheele/Desktop/questions.plist" atomically:YES];