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error.go
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error.go
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package logger
import (
"errors"
"regexp"
"strings"
"github.com/go-playground/validator/v10"
)
type ValidationError struct {
Root error
Rewrite [2]string
Details validator.ValidationErrors
}
var errorMap = map[string]int{}
var (
matchFirstCap = regexp.MustCompile("(.)([A-Z][a-z]+)")
matchAllCap = regexp.MustCompile("([a-z0-9])([A-Z])")
)
func RegisterErrors(m map[error]int) {
for k, v := range m {
errorMap[k.Error()] = v
}
}
func FailValidation(root, details error) *ValidationError {
var v ValidationError
v.Root = root
if e, ok := details.(validator.ValidationErrors); ok {
v.Details = e
}
return &v
}
func (e *ValidationError) Error() string {
var sb strings.Builder
if e.Root != nil {
sb.WriteString(e.Root.Error())
}
if len(e.Details) > 0 {
sb.WriteString(": ")
sb.WriteString(e.Details.Error())
}
return sb.String()
}
func (e *ValidationError) RewritePrefix(original, updated string) {
e.Rewrite = [2]string{original, updated}
}
func (e *ValidationError) RewritesPrefix() bool {
return e.Rewrite != [2]string{}
}
func unwrap(err error) error {
for errors.Unwrap(err) != nil {
err = errors.Unwrap(err)
}
return err
}
func toSnakeCase(str string) string {
snake := matchFirstCap.ReplaceAllString(str, "${1}_${2}")
snake = matchAllCap.ReplaceAllString(snake, "${1}_${2}")
return strings.ToLower(snake)
}