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