我有与此Network -> Serie -> Season -> Episodes
类似的层次结构。这是一个简化版本,我的真实层次结构是7级深度。
我需要使用以下JSON解码/编码这些对象:
Network:
{
id: 1,
name: 'Fox'
}
Series:
{
id: 2,
name: 'The Simpsons',
network: {
id: 1,
name: 'Fox'
}
}
Season:
{
id: 3,
name: 'Season 3',
network: {
id: 1,
name: 'Fox'
},
series: {
id: 2,
name: 'The Simpsons'
}
}
Episode:
{
id: 4,
name: 'Pilot',
network: {
id: 1,
name: 'Fox'
},
series: {
id: 2,
name: 'The Simpsons'
},
season: {
id: 3,
name: 'Season 3'
}
}
我尝试过编写像这样的对象:
type Base struct {
ID string `json:"id"`
Name string `json:"name"`
}
type Network struct {
Base
}
type Series struct {
Network // Flatten out all Network properties (ID + Name)
Network Base `json:"network"`
}
type Season struct {
Series // Flatten out all Series properties (ID + Name + Network)
Series Base `json:"series"`
}
type Episode struct {
Season // Flatten out all Season properties (ID + Name + Network + Series)
Season Season `json:"season"`
}
当然它不起作用"duplicate field error"
。此外,JSON结果将深深嵌套。
在经典的OOP中,使用普通继承相当容易,在原型语言中它也是可行的(Object.create / Mixins)
Golang有一种优雅的方式吗?我宁愿保留代码DRY。
答案 0 :(得分:2)
为什么不重命名?但保留json标签,然后根据该标签进行编组/解组
type Base struct {
ID string `json:"id"`
Name string `json:"name"`
}
type Network struct {
Base
}
type Series struct {
Network // Flatten out all Network properties (ID + Name)
NetworkBase Base `json:"network"`
}
type Season struct {
Series // Flatten out all Series properties (ID + Name + Network)
SeriesBase Base `json:"series"`
}
type Episode struct {
Season // Flatten out all Season properties (ID + Name + Network + Series)
SeasonBase Base `json:"season"`
}