高朗版本：1.18.3驗證器：github.com/go-playground/validator/v10我想在加載到嵌套結構數(shù)據(jù)結構后驗證傳入的 JSON 有效負載。這是我傳入的 JSON 負載， { "irn": 1, "firstName": "Testing", "lastName": "Test", "cardType": "RECIPROCAL", "number": "2248974514", "cardExpiry": { "month": "01", "year": "2025" }}這是我的 medicare.go 文件 package mainimport ( "encoding/json" "github.com/go-playground/validator/v10")type Medicare struct { IRN uint8 FirstName string MiddleInitial string LastName string CardType string `validate:"required,eq=RESIDENT|eq=RECIPROCAL|eq=INTERIM"` Number string CardExpiry *CardExpiry `validate:"required"`}type CardExpiry struct { Day string Month string `validate:"required"` Year string `validate:"required"`}這是我的測試功能 func TestUserPayload(t *testing.T) { var m Medicare err := json.Unmarshal([]byte(jsonData), &m) if err != nil { panic(err) } validate := validator.New() err = validate.Struct(m) if err != nil { t.Errorf("error %v", err) }}我想使用 validator/v10 的required_if標記進行以下驗證。這是驗證邏輯，if (m.CardType == "RECIPROCAL" || m.CardType == "INTERIM") && m.CardExpiry.Day == "" { //validation error}required_if可以基于同一結構中的字段值使用（在本例中為 CardExpiry）Day string `validate:"required_if=Month 01"`我的問題是，可以根據(jù)其封閉結構字段之一（在本例中為 Medicare 結構）的值來完成嗎？例如：Day string `validate:"required_if=Medicare.CardType RECIPROCAL"`如果可以，怎么做？這是go playground 代碼
2 回答
慕虎7371278
TA貢獻1802條經(jīng)驗 獲得超4個贊
您可以編寫自定義驗證， playground-solution，自定義驗證的文檔可在此處獲得https://pkg.go.dev/github.com/go-playground/validator#CustomTypeFunc。
翻過高山走不出你
TA貢獻1875條經(jīng)驗 獲得超3個贊
有點老的問題，但是 valix ( https://github.com/marrow16/valix ) 可以使用條件“開箱即用”地做這些事情。例子...
package main
import (
"fmt"
"net/http"
"strings"
"github.com/marrow16/valix"
)
type Medicare struct {
IRN uint8 `json:"irn"`
FirstName string `json:"firstName"`
MiddleInitial string `json:"middleInitial"`
LastName string `json:"lastName"`
// set order on this property so that it is evaluated before 'CardExpiry' object is checked...
// (and set a condition based on its value)
CardType string `json:"cardType" v8n:"order:-1,required,&StringValidToken{['RESIDENT','RECIPROCAL','INTERIM']},&SetConditionFrom{Global:true}"`
Number string `json:"number"`
CardExpiry *CardExpiry `json:"cardExpiry" v8n:"required,notNull"`
}
type CardExpiry struct {
// this property is required when a condition of `RECIPROCAL` has been set (and unwanted when that condition has not been set)...
Day string `json:"day" v8n:"required:RECIPROCAL,unwanted:!RECIPROCAL"`
Month string `json:"month" v8n:"required"`
Year string `json:"year" v8n:"required"`
}
var medicareValidator = valix.MustCompileValidatorFor(Medicare{}, nil)
func main() {
jsonData := `{
"irn": 1,
"firstName": "Testing",
"lastName": "Test",
"cardType": "RECIPROCAL",
"number": "2248974514",
"cardExpiry": {
"month": "01",
"year": "2025"
}
}`
medicare := &Medicare{}
ok, violations, _ := medicareValidator.ValidateStringInto(jsonData, medicare)
// should fail with 1 violation...
fmt.Printf("First ok?: %v\n", ok)
for i, v := range violations {
fmt.Printf("Violation[%d]: Message:%s, Property:%s, Path:%s\n", i+1, v.Message, v.Property, v.Path)
}
jsonData = `{
"irn": 1,
"firstName": "Testing",
"lastName": "Test",
"cardType": "RECIPROCAL",
"number": "2248974514",
"cardExpiry": {
"day": "01",
"month": "01",
"year": "2025"
}
}`
ok, _, _ = medicareValidator.ValidateStringInto(jsonData, medicare)
// should be ok...
fmt.Printf("Second ok?: %v\n", ok)
jsonData = `{
"irn": 1,
"firstName": "Testing",
"lastName": "Test",
"cardType": "INTERIM",
"number": "2248974514",
"cardExpiry": {
"month": "01",
"year": "2025"
}
}`
ok, _, _ = medicareValidator.ValidateStringInto(jsonData, medicare)
// should be ok...
fmt.Printf("Third ok?: %v\n", ok)
jsonData = `{
"irn": 1,
"firstName": "Testing",
"lastName": "Test",
"cardType": "INTERIM",
"number": "2248974514",
"cardExpiry": {
"day": "01",
"month": "01",
"year": "2025"
}
}`
ok, violations, _ = medicareValidator.ValidateStringInto(jsonData, medicare)
fmt.Printf("Fourth ok?: %v\n", ok)
for i, v := range violations {
fmt.Printf("Violation[%d]: Message:%s, Property:%s, Path:%s\n", i+1, v.Message, v.Property, v.Path)
}
// or validate directly from a http request...
req, _ := http.NewRequest("POST", "", strings.NewReader(jsonData))
ok, violations, _ = medicareValidator.RequestValidateInto(req, medicare)
fmt.Printf("Fourth (as http.Request) ok?: %v\n", ok)
for i, v := range violations {
fmt.Printf("Violation[%d]: Message:%s, Property:%s, Path:%s\n", i+1, v.Message, v.Property, v.Path)
}
}
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