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package vt
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import (
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"fmt"
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"reflect"
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"strings"
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"github.com/gin-gonic/gin/binding"
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"github.com/go-playground/locales/en"
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"github.com/go-playground/locales/zh"
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ut "github.com/go-playground/universal-translator"
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"github.com/go-playground/validator/v10"
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enTranslations "github.com/go-playground/validator/v10/translations/en"
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zhTranslations "github.com/go-playground/validator/v10/translations/zh"
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)
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// 定义一个全局翻译器T
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var Trans ut.Translator
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// InitTrans 初始化翻译器
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func InitTrans(locale string) (err error) {
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// 修改gin框架中的Validator引擎属性，实现自定制
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if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
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// 注册一个获取json tag的自定义方法
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v.RegisterTagNameFunc(func(fld reflect.StructField) string {
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name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
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if name == "-" {
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return ""
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}
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return name
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})
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zhT := zh.New() // 中文翻译器
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enT := en.New() // 英文翻译器
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// 为SignUpParam注册自定义校验方法
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// v.RegisterStructValidation(SignUpParamStructLevelValidation, models.ParamSignUp{})
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// 第一个参数是备用（fallback）的语言环境
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// 后面的参数是应该支持的语言环境（支持多个）
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// uni := ut.New(zhT, zhT) 也是可以的
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uni := ut.New(enT, zhT, enT)
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// locale 通常取决于 http 请求头的 'Accept-Language'
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var ok bool
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// 也可以使用 uni.FindTranslator(...) 传入多个locale进行查找
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Trans, ok = uni.GetTranslator(locale)
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if !ok {
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return fmt.Errorf("uni.GetTranslator(%s) failed", locale)
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}
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// 注册翻译器
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switch locale {
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case "en":
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err = enTranslations.RegisterDefaultTranslations(v, Trans)
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case "zh":
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err = zhTranslations.RegisterDefaultTranslations(v, Trans)
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default:
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err = enTranslations.RegisterDefaultTranslations(v, Trans)
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}
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return
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}
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return
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}
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// 去除提示信息中的结构体名称
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func RemoveTopStruct(fields map[string]string) map[string]string {
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res := map[string]string{}
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for field, err := range fields {
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res[field[strings.Index(field, ".")+1:]] = err
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}
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return res
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}
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// 自定义SignUpParam结构体校验函数
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// func SignUpParamStructLevelValidation(sl validator.StructLevel) {
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// su := sl.Current().Interface().(models.ParamSignUp)
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// if su.Password != su.RePassword {
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// // 输出错误提示信息，最后一个参数就是传递的param
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// sl.ReportError(su.RePassword, "re_password", "RePassword", "eqfield", "password")
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// }
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// }
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