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https://github.com/wonli/aqi.git
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98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
package validate
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import (
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"os"
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"reflect"
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"strings"
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"sync"
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"github.com/fatih/color"
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"github.com/go-playground/locales"
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"github.com/go-playground/locales/en"
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"github.com/go-playground/locales/zh"
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"github.com/go-playground/validator/v10"
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ut "github.com/go-playground/universal-translator"
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enT "github.com/go-playground/validator/v10/translations/en"
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zhT "github.com/go-playground/validator/v10/translations/zh"
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)
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var sg sync.Once
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var vc *validatorConfig
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type validatorConfig struct {
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locale string
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zh locales.Translator
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en locales.Translator
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}
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// InitTranslator validator默认仅支持中英文
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func InitTranslator(locale string) *validatorConfig {
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sg.Do(func() {
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zhl := zh.New() // 中文翻译器
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enl := en.New() // 英文翻译器
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//赋值给valid
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vc = &validatorConfig{
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locale: locale,
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zh: zhl,
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en: enl,
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}
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})
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return vc
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}
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// 处理字段名称
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// 中文使用label标签，其他语言label+语言名称，没有设置时使用json名称
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func (a *validatorConfig) tagNameFunc(fld reflect.StructField) string {
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var name string
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switch a.locale {
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case "zh":
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name = fld.Tag.Get("label")
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default:
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name = fld.Tag.Get("label_" + a.locale)
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if name == "" {
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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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}
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}
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return name
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}
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// translator
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func (a *validatorConfig) getTranslator() ut.Translator {
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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(zhl, zhl) 也是可以的
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uni := ut.New(a.en, a.zh, a.en)
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// locale 通常取决于 http 请求头的 'Accept-Language'
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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(a.locale)
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if !ok {
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color.Red("uni.GetTranslator(%s) failed", a.locale)
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os.Exit(0)
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}
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return trans
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}
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// registerTrans
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func (a *validatorConfig) registerTrans(v *validator.Validate, trans ut.Translator) error {
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var err error
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switch a.locale {
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case "en":
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err = enT.RegisterDefaultTranslations(v, trans)
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case "zh":
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err = zhT.RegisterDefaultTranslations(v, trans)
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default:
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err = enT.RegisterDefaultTranslations(v, trans)
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}
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return err
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}
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