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//
// NSObject+MJCoding.m
// MJExtension
//
// Created by mj on 14-1-15.
// Copyright (c) 2014年 小码哥. All rights reserved.
//
#import "NSObject+MJCoding.h"
#import "NSObject+MJClass.h"
#import "NSObject+MJProperty.h"
#import "MJProperty.h"
@implementation NSObject (MJCoding)
- (void)mj_encode:(NSCoder *)encoder
{
Class clazz = [self class];
NSArray *allowedCodingPropertyNames = [clazz mj_totalAllowedCodingPropertyNames];
NSArray *ignoredCodingPropertyNames = [clazz mj_totalIgnoredCodingPropertyNames];
[clazz mj_enumerateProperties:^(MJProperty *property, BOOL *stop) {
// 检测是否被忽略
if (allowedCodingPropertyNames.count && ![allowedCodingPropertyNames containsObject:property.name]) return;
if ([ignoredCodingPropertyNames containsObject:property.name]) return;
id value = [property valueForObject:self];
if (value == nil) return;
[encoder encodeObject:value forKey:property.name];
}];
}
- (void)mj_decode:(NSCoder *)decoder
{
Class clazz = [self class];
NSArray *allowedCodingPropertyNames = [clazz mj_totalAllowedCodingPropertyNames];
NSArray *ignoredCodingPropertyNames = [clazz mj_totalIgnoredCodingPropertyNames];
[clazz mj_enumerateProperties:^(MJProperty *property, BOOL *stop) {
// 检测是否被忽略
if (allowedCodingPropertyNames.count && ![allowedCodingPropertyNames containsObject:property.name]) return;
if ([ignoredCodingPropertyNames containsObject:property.name]) return;
// fixed `-[NSKeyedUnarchiver validateAllowedClass:forKey:] allowed unarchiving safe plist type ''NSNumber'(This will be disallowed in the future.)` warning.
Class genericClass = [property objectClassInArrayForClass:property.srcClass];
// If genericClass exists, property.type.typeClass would be a collection type(Array, Set, Dictionary). This scenario([obj, nil, obj, nil]) would not happened.
NSSet *classes = [NSSet setWithObjects:NSNumber.class,
property.type.typeClass, genericClass, nil];
id value = [decoder decodeObjectOfClasses:classes forKey:property.name];
if (value == nil) { // 兼容以前的MJExtension版本
value = [decoder decodeObjectForKey:[@"_" stringByAppendingString:property.name]];
}
if (value == nil) return;
[property setValue:value forObject:self];
}];
}
@end