gf/util/gvalid/internal/builtin/builtin_size.go
2022-09-26 22:11:13 +08:00

47 lines
1.1 KiB
Go

// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package builtin
import (
"errors"
"strconv"
"strings"
"github.com/gogf/gf/v2/util/gconv"
)
// RuleSize implements `size` rule:
// Length must be :size.
// The length is calculated using unicode string, which means one chinese character or letter both has the length of 1.
//
// Format: size:size
type RuleSize struct{}
func init() {
Register(RuleSize{})
}
func (r RuleSize) Name() string {
return "size"
}
func (r RuleSize) Message() string {
return "The {field} value `{value}` length must be {size}"
}
func (r RuleSize) Run(in RunInput) error {
var (
valueRunes = gconv.Runes(in.Value.String())
valueLen = len(valueRunes)
)
size, err := strconv.Atoi(in.RulePattern)
if valueLen != size || err != nil {
return errors.New(strings.Replace(in.Message, "{size}", strconv.Itoa(size), -1))
}
return nil
}