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YYModel
==============
[![License MIT](https://img.shields.io/badge/license-MIT-green.svg?style=flat)](https://raw.githubusercontent.com/ibireme/YYModel/master/LICENSE) 
[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) 
[![CocoaPods](http://img.shields.io/cocoapods/v/YYModel.svg?style=flat)](http://cocoapods.org/?q= YYModel) 
[![CocoaPods](http://img.shields.io/cocoapods/p/YYModel.svg?style=flat)](http://cocoapods.org/?q= YYModel) 
[![Build Status](https://travis-ci.org/ibireme/YYModel.svg?branch=master)](https://travis-ci.org/ibireme/YYModel) 
[![codecov.io](https://codecov.io/github/ibireme/YYModel/coverage.svg?branch=master)](https://codecov.io/github/ibireme/YYModel?branch=master)
High performance model framework for iOS/OSX.<br/>
(It's a component of [YYKit](https://github.com/ibireme/YYKit))
Performance
==============
Time cost (process GithubUser 10000 times on iPhone 6):
![Benchmark result](https://raw.github.com/ibireme/YYModel/master/Benchmark/Result.png
)
See `Benchmark/ModelBenchmark.xcodeproj` for more benchmark case.
Features
==============
- **High performance**: The conversion performance is close to handwriting code.
- **Automatic type conversion**: The object types can be automatically converted.
- **Type Safe**: All data types will be verified to ensure type-safe during the conversion process.
- **Non-intrusive**: There is no need to make the model class inherit from other base class.
- **Lightwight**: This library contains only 5 files.
- **Docs and unit testing**: 100% docs coverage, 99.6% code coverage.
Usage
==============
###Simple model json convert
// JSON:
{
"uid":123456,
"name":"Harry",
"created":"1965-07-31T00:00:00+0000"
}
// Model:
@interface User : NSObject
@property UInt64 uid;
@property NSString *name;
@property NSDate *created;
@end
@implementation User
@end
// Convert json to model:
User *user = [User yy_modelWithJSON:json];
// Convert model to json:
NSDictionary *json = [user yy_modelToJSONObject];
If the type of an object in JSON/Dictionary cannot be matched to the property of the model, the following automatic conversion is performed. If the automatic conversion failed, the value will be ignored.
<table>
<thead>
<tr>
<th>JSON/Dictionary</th>
<th>Model</th>
</tr>
</thead>
<tbody>
<tr>
<td>NSString</td>
<td>NSNumber,NSURL,SEL,Class</td>
</tr>
<tr>
<td>NSNumber</td>
<td>NSString</td>
</tr>
<tr>
<td>NSString/NSNumber</td>
<td>C number (BOOL,int,float,NSUInteger,UInt64,...)<br/>
NaN and Inf will be ignored</td>
</tr>
<tr>
<td>NSString</td>
<td>NSDate parsed with these formats:<br/>
yyyy-MM-dd<br/>
yyyy-MM-dd HH:mm:ss<br/>
yyyy-MM-dd'T'HH:mm:ss<br/>
yyyy-MM-dd'T'HH:mm:ssZ<br/>
EEE MMM dd HH:mm:ss Z yyyy
</td>
</tr>
<tr>
<td>NSDate</td>
<td>NSString formatted with ISO8601:<br/>
"YYYY-MM-dd'T'HH:mm:ssZ"</td>
</tr>
<tr>
<td>NSValue</td>
<td>struct (CGRect,CGSize,...)</td>
</tr>
<tr>
<td>NSNull</td>
<td>nil,0</td>
</tr>
<tr>
<td>"no","false",...</td>
<td>@(NO),0</td>
</tr>
<tr>
<td>"yes","true",...</td>
<td>@(YES),1</td>
</tr>
</tbody>
</table>
###Match model property to different JSON key
// JSON:
{
"n":"Harry Pottery",
"p": 256,
"ext" : {
"desc" : "A book written by J.K.Rowing."
},
"ID" : 100010
}
// Model:
@interface Book : NSObject
@property NSString *name;
@property NSInteger page;
@property NSString *desc;
@property NSString *bookID;
@end
@implementation Book
+ (NSDictionary *)modelCustomPropertyMapper {
return @{@"name" : @"n",
@"page" : @"p",
@"desc" : @"ext.desc",
@"bookID" : @[@"id",@"ID",@"book_id"]};
}
@end
You can map a json key (key path) or an array of json key (key path) to one or multiple property name. If there's no mapper for a property, it will use the property's name as default.
###Nested model
// JSON
{
"author":{
"name":"J.K.Rowling",
"birthday":"1965-07-31T00:00:00+0000"
},
"name":"Harry Potter",
"pages":256
}
// Model: (no need to do anything)
@interface Author : NSObject
@property NSString *name;
@property NSDate *birthday;
@end
@implementation Author
@end
@interface Book : NSObject
@property NSString *name;
@property NSUInteger pages;
@property Author *author;
@end
@implementation Book
@end
### Container property
@class Shadow, Border, Attachment;
@interface Attributes
@property NSString *name;
@property NSArray *shadows; //Array<Shadow>
@property NSSet *borders; //Set<Border>
@property NSMutableDictionary *attachments; //Dict<NSString,Attachment>
@end
@implementation Attributes
+ (NSDictionary *)modelContainerPropertyGenericClass {
// value should be Class or Class name.
return @{@"shadows" : [Shadow class],
@"borders" : Border.class,
@"attachments" : @"Attachment" };
}
@end
### Whitelist and blacklist
@interface User
@property NSString *name;
@property NSUInteger age;
@end
@implementation Attributes
+ (NSArray *)modelPropertyBlacklist {
return @[@"test1", @"test2"];
}
+ (NSArray *)modelPropertyWhitelist {
return @[@"name"];
}
@end
###Data validate and custom transform
// JSON:
{
"name":"Harry",
"timestamp" : 1445534567
}
// Model:
@interface User
@property NSString *name;
@property NSDate *createdAt;
@end
@implementation User
- (BOOL)modelCustomTransformFromDictionary:(NSDictionary *)dic {
NSNumber *timestamp = dic[@"timestamp"];
if (![timestamp isKindOfClass:[NSNumber class]]) return NO;
_createdAt = [NSDate dateWithTimeIntervalSince1970:timestamp.floatValue];
return YES;
}
- (BOOL)modelCustomTransformToDictionary:(NSMutableDictionary *)dic {
if (!_createdAt) return NO;
dic[@"timestamp"] = @(n.timeIntervalSince1970);
return YES;
}
@end
###Coding/Copying/hash/equal/description
@interface YYShadow :NSObject <NSCoding, NSCopying>
@property (nonatomic, copy) NSString *name;
@property (nonatomic, assign) CGSize size;
@end
@implementation YYShadow
- (void)encodeWithCoder:(NSCoder *)aCoder { [self yy_modelEncodeWithCoder:aCoder]; }
- (id)initWithCoder:(NSCoder *)aDecoder { self = [super init]; return [self yy_modelInitWithCoder:aDecoder]; }
- (id)copyWithZone:(NSZone *)zone { return [self yy_modelCopy]; }
- (NSUInteger)hash { return [self yy_modelHash]; }
- (BOOL)isEqual:(id)object { return [self yy_modelIsEqual:object]; }
- (NSString *)description { return [self yy_modelDescription]; }
@end
Installation
==============
### CocoaPods
1. Add `pod 'YYModel'` to your Podfile.
2. Run `pod install` or `pod update`.
3. Import \<YYModel/YYModel.h\>.
### Carthage
1. Add `github "ibireme/YYModel"` to your Cartfile.
2. Run `carthage update --platform ios` and add the framework to your project.
3. Import \<YYModel/YYModel.h\>.
### Manually
1. Download all the files in the YYModel subdirectory.
2. Add the source files to your Xcode project.
3. Import `YYModel.h`.
Documentation
==============
Full API documentation is available on [CocoaDocs](http://cocoadocs.org/docsets/YYModel/).<br/>
You can also install documentation locally using [appledoc](https://github.com/tomaz/appledoc).
Requirements
==============
This library requires `iOS 6.0+` and `Xcode 7.0+`.
License
==============
YYModel is provided under the MIT license. See LICENSE file for details.
<br/><br/>
---
中文介绍
==============
高性能 iOS/OSX 模型转换框架。<br/>
(该项目是 [YYKit](https://github.com/ibireme/YYKit) 组件之一)
性能
==============
处理 GithubUser 数据 10000 次耗时统计 (iPhone 6):
![Benchmark result](https://raw.github.com/ibireme/YYModel/master/Benchmark/Result.png
)
更多测试代码和用例见 `Benchmark/ModelBenchmark.xcodeproj`。
特性
==============
- **高性能**: 模型转换性能接近手写解析代码。
- **自动类型转换**: 对象类型可以自动转换，详情见下方表格。
- **类型安全**: 转换过程中，所有的数据类型都会被检测一遍，以保证类型安全，避免崩溃问题。
- **无侵入性**: 模型无需继承自其他基类。
- **轻量**: 该框架只有 5 个文件 (包括.h文件)。
- **文档和单元测试**: 文档覆盖率100%, 代码覆盖率99.6%。
使用方法
==============
###简单的 Model 与 JSON 相互转换
// JSON:
{
"uid":123456,
"name":"Harry",
"created":"1965-07-31T00:00:00+0000"
}
// Model:
@interface User : NSObject
@property UInt64 uid;
@property NSString *name;
@property NSDate *created;
@end
@implementation User
@end
// 将 JSON (NSData,NSString,NSDictionary) 转换为 Model:
User *user = [User yy_modelWithJSON:json];
// 将 Model 转换为 JSON 对象:
NSDictionary *json = [user yy_modelToJSONObject];
当 JSON/Dictionary 中的对象类型与 Model 属性不一致时，YYModel 将会进行如下自动转换。自动转换不支持的值将会被忽略，以避免各种潜在的崩溃问题。
<table>
<thead>
<tr>
<th>JSON/Dictionary</th>
<th>Model</th>
</tr>
</thead>
<tbody>
<tr>
<td>NSString</td>
<td>NSNumber,NSURL,SEL,Class</td>
</tr>
<tr>
<td>NSNumber</td>
<td>NSString</td>
</tr>
<tr>
<td>NSString/NSNumber</td>
<td>基础类型 (BOOL,int,float,NSUInteger,UInt64,...)<br/>
NaN 和 Inf 会被忽略</td>
</tr>
<tr>
<td>NSString</td>
<td>NSDate 以下列格式解析:<br/>
yyyy-MM-dd<br/>
yyyy-MM-dd HH:mm:ss<br/>
yyyy-MM-dd'T'HH:mm:ss<br/>
yyyy-MM-dd'T'HH:mm:ssZ<br/>
EEE MMM dd HH:mm:ss Z yyyy
</td>
</tr>
<tr>
<td>NSDate</td>
<td>NSString 格式化为 ISO8601:<br/>
"YYYY-MM-dd'T'HH:mm:ssZ"</td>
</tr>
<tr>
<td>NSValue</td>
<td>struct (CGRect,CGSize,...)</td>
</tr>
<tr>
<td>NSNull</td>
<td>nil,0</td>
</tr>
<tr>
<td>"no","false",...</td>
<td>@(NO),0</td>
</tr>
<tr>
<td>"yes","true",...</td>
<td>@(YES),1</td>
</tr>
</tbody>
</table>
###Model 属性名和 JSON 中的 Key 不相同
// JSON:
{
"n":"Harry Pottery",
"p": 256,
"ext" : {
"desc" : "A book written by J.K.Rowing."
},
"ID" : 100010
}
// Model:
@interface Book : NSObject
@property NSString *name;
@property NSInteger page;
@property NSString *desc;
@property NSString *bookID;
@end
@implementation Book
//返回一个 Dict，将 Model 属性名对映射到 JSON 的 Key。
+ (NSDictionary *)modelCustomPropertyMapper {
return @{@"name" : @"n",
@"page" : @"p",
@"desc" : @"ext.desc",
@"bookID" : @[@"id",@"ID",@"book_id"]};
}
@end
你可以把一个或一组 json key (key path) 映射到一个或多个属性。如果一个属性没有映射关系，那默认会使用相同属性名作为映射。
在 json->model 的过程中：如果一个属性对应了多个 json key，那么转换过程会按顺序查找，并使用第一个不为空的值。
在 model->json 的过程中：如果一个属性对应了多个 json key (key path)，那么转换过程仅会处理第一个 json key (key path)；如果多个属性对应了同一个 json key，则转换过过程会使用其中任意一个不为空的值。
###Model 包含其他 Model
// JSON
{
"author":{
"name":"J.K.Rowling",
"birthday":"1965-07-31T00:00:00+0000"
},
"name":"Harry Potter",
"pages":256
}
// Model: 什么都不用做，转换会自动完成
@interface Author : NSObject
@property NSString *name;
@property NSDate *birthday;
@end
@implementation Author
@end
@interface Book : NSObject
@property NSString *name;
@property NSUInteger pages;
@property Author *author; //Book 包含 Author 属性
@end
@implementation Book
@end
###容器类属性
@class Shadow, Border, Attachment;
@interface Attributes
@property NSString *name;
@property NSArray *shadows; //Array<Shadow>
@property NSSet *borders; //Set<Border>
@property NSMutableDictionary *attachments; //Dict<NSString,Attachment>
@end
@implementation Attributes
// 返回容器类中的所需要存放的数据类型 (以 Class 或 Class Name 的形式)。
+ (NSDictionary *)modelContainerPropertyGenericClass {
return @{@"shadows" : [Shadow class],
@"borders" : Border.class,
@"attachments" : @"Attachment" };
}
@end
###黑名单与白名单
@interface User
@property NSString *name;
@property NSUInteger age;
@end
@implementation Attributes
// 如果实现了该方法，则处理过程中会忽略该列表内的所有属性
+ (NSArray *)modelPropertyBlacklist {
return @[@"test1", @"test2"];
}
// 如果实现了该方法，则处理过程中不会处理该列表外的属性。
+ (NSArray *)modelPropertyWhitelist {
return @[@"name"];
}
@end
###数据校验与自定义转换
// JSON:
{
"name":"Harry",
"timestamp" : 1445534567
}
// Model:
@interface User
@property NSString *name;
@property NSDate *createdAt;
@end
@implementation User
// 当 JSON 转为 Model 完成后，该方法会被调用。
// 你可以在这里对数据进行校验，如果校验不通过，可以返回 NO，则该 Model 会被忽略。
// 你也可以在这里做一些自动转换不能完成的工作。
- (BOOL)modelCustomTransformFromDictionary:(NSDictionary *)dic {
NSNumber *timestamp = dic[@"timestamp"];
if (![timestamp isKindOfClass:[NSNumber class]]) return NO;
_createdAt = [NSDate dateWithTimeIntervalSince1970:timestamp.floatValue];
return YES;
}
// 当 Model 转为 JSON 完成后，该方法会被调用。
// 你可以在这里对数据进行校验，如果校验不通过，可以返回 NO，则该 Model 会被忽略。
// 你也可以在这里做一些自动转换不能完成的工作。
- (BOOL)modelCustomTransformToDictionary:(NSMutableDictionary *)dic {
if (!_createdAt) return NO;
dic[@"timestamp"] = @(n.timeIntervalSince1970);
return YES;
}
@end
###Coding/Copying/hash/equal/description
@interface YYShadow :NSObject <NSCoding, NSCopying>
@property (nonatomic, copy) NSString *name;
@property (nonatomic, assign) CGSize size;
@end
@implementation YYShadow
// 直接添加以下代码即可自动完成
- (void)encodeWithCoder:(NSCoder *)aCoder { [self yy_modelEncodeWithCoder:aCoder]; }
- (id)initWithCoder:(NSCoder *)aDecoder { self = [super init]; return [self yy_modelInitWithCoder:aDecoder]; }
- (id)copyWithZone:(NSZone *)zone { return [self yy_modelCopy]; }
- (NSUInteger)hash { return [self yy_modelHash]; }
- (BOOL)isEqual:(id)object { return [self yy_modelIsEqual:object]; }
- (NSString *)description { return [self yy_modelDescription]; }
@end
安装
==============
### CocoaPods
1. 在 Podfile 中添加 `pod 'YYModel'`。
2. 执行 `pod install` 或 `pod update`。
3. 导入 \<YYModel/YYModel.h\>。
### Carthage
1. 在 Cartfile 中添加 `github "ibireme/YYModel"`。
2. 执行 `carthage update --platform ios` 并将生成的 framework 添加到你的工程。
3. 导入 \<YYModel/YYModel.h\>。
### 手动安装
1. 下载 YYModel 文件夹内的所有内容。
2. 将 YYModel 内的源文件添加(拖放)到你的工程。
3. 导入 `YYModel.h`。
文档
==============
你可以在 [CocoaDocs](http://cocoadocs.org/docsets/YYModel/) 查看在线 API 文档，也可以用 [appledoc](https://github.com/tomaz/appledoc) 本地生成文档。
系统要求
==============
该项目最低支持 `iOS 6.0` 和 `Xcode 7.0`。
许可证
==============
YYModel 使用 MIT 许可证，详情见 LICENSE 文件。
相关链接
==============
[iOS JSON 模型转换库评测](http://blog.ibireme.com/2015/10/23/ios_model_framework_benchmark/)