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https://github.com/nukc/tagsugar
🍬Change field according to tag options, use like json/beego.orm tag options
https://github.com/nukc/tagsugar
go struct structfield tag
Last synced: 2 days ago
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🍬Change field according to tag options, use like json/beego.orm tag options
- Host: GitHub
- URL: https://github.com/nukc/tagsugar
- Owner: nukc
- License: other
- Created: 2018-09-30T12:11:03.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2024-01-22T01:51:08.000Z (about 1 year ago)
- Last Synced: 2024-11-30T06:43:02.925Z (2 months ago)
- Topics: go, struct, structfield, tag
- Language: Go
- Homepage:
- Size: 19.5 KB
- Stars: 3
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# TagSugar
> 根据字段里的 StructField 设置进行相应的处理，使用方法就好像 json 和 beego.orm 那样。
## Intention
数据库存储头像或者其它文件的时候保存的是一个路径或者一个 key，查询出来的时候，往往并没有拼接域名地址；如果每次都要自己手动拼接一次的话，真的感觉好累，为了不想多做不必要的逻辑判断和代码
还有些情况就是数据库字段保存的是一个 json 字符串，想要在输出之前转换成一个 json 对象或数组。
## Usage
### Download and install
```
go get github.com/nukc/tagsugar
```
```go
package main
import "github.com/nukc/tagsugar"
func main(){
// if use url(http) options
tagsugar.Http = "https://cdn.github.com/"
tagsugar.Lick(&model)
}
```
### Tag options support list
option | remark
:---------- | :----------
url(http) | str = tagsugar.Http + str
initial | set a initial value
assign_to(FiledB) | FiledB is other filed
assign_type(mode) | assign_to type mode
> assign_to type mode
> - raw: default mode, assign_to FiledB a raw value
> - bool: assign_to FiledB a bool value
> - unmarshal: set the FiledB a json.Unmarshal(str, &obj) value
### Tag options sample
> url(http)
```go
type Model struct {
Id int
Image string `ts:"url(http)"`
}
model := Model{Id: 1, Image: "test.png"}
tagsugar.Lick(&model)
log.Print(model.Image)
// https://cdn.github.com/test.png
```
> assign_type(bool)
```go
type Model struct {
Id int
Sex int8 `ts:"assign_to(IsMan);assign_type(bool)"`
IsMan bool
}
model := Model{Id: 2, Sex: 1}
// IsMan: false
tagsugar.Lick(&model)
// IsMan : true
```
> assign_type(unmarshal)
```go
type Model struct {
Id int
Json string `ts:"assign_to(Object);assign_type(unmarshal)" json:"-"`
Object interface{}
}
json := "{\"id\": 1, \"post\": 2}"
model := Model{Id: 3, Json: json}
// Object:
tagsugar.Lick(&model)
// Object: map[id:1 post:2]
```
```go
type Model struct {
Id int
Json string `ts:"assign_to(Post);assign_type(unmarshal)" json:"-"`
Post Post
}
type Post struct {
Id int
Post int
}
json := "{\"id\": 2, \"post\": 6}"
model := Model{Id: 4, Json: json}
// Post: {0 0}
tagsugar.Lick(&model)
// Post: {2 6}
```
```go
type Model struct {
Id int
Json string `ts:"assign_to(Array);assign_type(unmarshal)" json:"-"`
Array []interface{}
}
json := "[{\"id\": 1, \"post\": 3},{\"id\": 2, \"post\": 66}]"
model := Model{Id: 4, Json: json}
// Array: []
tagsugar.Lick(&model)
// Array: [map[id:1 post:3] map[id:2 post:66]]
```
## License
Apache License, Version 2.0