/
or.go
70 lines (62 loc) · 1.83 KB
/
or.go
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/*
* Copyright 2018 The golyu Authors. All rights reserved.
* Use of this source code is governed by a Apache License, Version 2.0 (the "License");
* license that can be found in the LICENSE file.
*/
package rule
import (
"errors"
"strings"
)
// 满足一个条件就校验成功了,因为Or这个条件控制比较特殊,所以跟其他的不一样,使用Or<>包裹条件,各条件之间用空格符隔开
// 例如,想要一个联系方式的字符串校验,这个联系方式可以是电话号码Phone,也可以是email,就可以写为 Or<Phone Email>
type OrRule struct {
validFuncs []Rule
FullTag
}
func (r *OrRule) Clone() Rule {
clone := *r
return &clone
}
func (r *OrRule) Tag() string {
return "Or"
}
func (r *OrRule) Generate(value interface{}, tagValue string) error {
if value == nil {
return errors.New("Generate Or:value is nil")
}
tagValueLen := len(tagValue)
tagLen := len(r.Tag())
if tagValueLen <= tagLen+2 { // 2的长度是()两个括号
return errors.New("Generate Or:the tag are out of specification")
}
// Or<Phone Max(3)> --> []string{"Phone","max(3)"}
tagValues := strings.Split(tagValue[tagLen+1:tagValueLen-1], SPLIT_SEP_OR)
for _, tag := range tagValues {
rule, err := GetRule(tag)
if err != nil {
return errors.New("Generate Or:" + err.Error())
}
err = rule.Generate(value, tag)
if err != nil {
return errors.New("Generate Or:" + err.Error())
}
r.validFuncs = append(r.validFuncs, rule)
}
return nil
}
func (r *OrRule) Valid() error {
var probe bool // 探针,只要一次成功就认为是成功了
var errTag []string
for _, rule := range r.validFuncs {
err := rule.Valid()
if err == nil {
probe = true
}
errTag = append(errTag, rule.Tag())
}
if probe {
return nil
}
return errors.New("Validation Or:the <" + strings.Join(errTag, ",") + "> rule verification failed")
}