82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
package validator
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import (
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"reflect"
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"strings"
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"sync"
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"github.com/gin-gonic/gin/binding"
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"github.com/go-playground/locales/en"
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ut "github.com/go-playground/universal-translator"
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"gopkg.in/go-playground/validator.v9"
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en_translations "gopkg.in/go-playground/validator.v9/translations/en"
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)
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var (
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ValidatorUni *ut.UniversalTranslator
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)
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type defaultValidator struct {
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once sync.Once
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validate *validator.Validate
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}
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var v binding.StructValidator = &defaultValidator{}
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func init() {
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v.Engine()
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}
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func (v *defaultValidator) ValidateStruct(obj interface{}) error {
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if kindOfData(obj) == reflect.Struct {
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v.lazyinit()
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if err := v.validate.Struct(obj); err != nil {
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return error(err)
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}
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}
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return nil
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}
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func (v *defaultValidator) Engine() interface{} {
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v.lazyinit()
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return v.validate
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}
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func (v *defaultValidator) lazyinit() {
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v.once.Do(func() {
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v.validate = validator.New()
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// 依旧使用bingding tag兼容v8
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v.validate.SetTagName("binding")
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// 错误信息转换
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en := en.New()
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ValidatorUni = ut.New(en, en)
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trans, _ := ValidatorUni.GetTranslator("en")
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en_translations.RegisterDefaultTranslations(v.validate, trans)
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v.validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
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name := strings.SplitN(fld.Tag.Get("comment"), ",", 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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})
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}
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func kindOfData(data interface{}) reflect.Kind {
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value := reflect.ValueOf(data)
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valueType := value.Kind()
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if valueType == reflect.Ptr {
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valueType = value.Elem().Kind()
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}
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return valueType
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}
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