Ankit Patial
6f9fb2d8ec
ptr, ref and deref funcs response, use fmt.Fprint(f) validate, few new funcs
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
// Copyright 2024 Patial Tech (Ankit Patial).
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//
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// This file is part of code.patial.tech/go/appcore, which is MIT licensed.
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// See http://opensource.org/licenses/MIT
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package validate
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import (
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"errors"
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"fmt"
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"reflect"
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"strings"
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"github.com/go-playground/validator/v10"
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)
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var validate *validator.Validate
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func init() {
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validate = validator.New()
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// register function to get tag name from json tags.
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validate.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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}
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// RegisterAlias for single/multuple tags
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func RegisterAlias(alias, tags string) {
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validate.RegisterAlias(alias, tags)
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}
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func RegisterValidation(tagName string, fn validator.Func, callValidationEvenIfNull ...bool) {
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validate.RegisterValidation(tagName, fn, callValidationEvenIfNull...)
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}
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// Struct validator
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func Struct(s any) error {
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err := validate.Struct(s)
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if IsInvalidValidationError(err) {
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return err
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}
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var valErrs validator.ValidationErrors
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if !errors.As(err, &valErrs) {
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return err
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}
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var sb strings.Builder
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for _, err := range valErrs {
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switch err.Tag() {
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case "required":
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sb.WriteString(fmt.Sprintf("%s: is required.\n", err.Field()))
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case "email":
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sb.WriteString(fmt.Sprintf("%s: is invalid.\n", err.Field()))
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default:
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sb.WriteString(fmt.Sprintf("%s: %q validation failed.\n", err.Field(), err.Tag()))
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}
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}
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return errors.New(sb.String())
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}
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// Map validator
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func Map(data map[string]any, rules map[string]any) map[string]any {
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return validate.ValidateMap(data, rules)
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}
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func IsInvalidValidationError(err error) bool {
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var v *validator.InvalidValidationError
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return errors.As(err, &v)
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}
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