"github.com/gin-gonic/gin"
"github.com/gin-gonic/gin/binding"
"gopkg.in/go-playground/validator.v9"
// 包含绑定数据和校验规则
type
Booking struct {
CheckIn time.Time `form:
"check_in"
binding:
"required,bookabledate"
time_format:
"2006-01-02"
`
//gtfield=CheckIn:大于check_in字段的值
CheckOut time.Time `form:
"check_out"
binding:
"required,gtfield=CheckIn"
time_format:
"2006-01-02"
`
//自定义验证规则
func bookableDate(fl validator.FieldLevel) bool {
//获取参数值并转换为时间格式
date := fl.Field().Interface().(time.Time)
today := time.Now()
if
today.Unix() > date.
Unix
() {
return
false
return
true
func
main
() {
route := gin.Default()
//注册自定义验证器
if
v, ok := binding.Validator.Engine().(*validator.Validate); ok {
//绑定第一个参数是校验规则的函数第二个参数是自定义的验证函数
v.RegisterValidation(
"bookabledate"
, bookableDate)
route.GET(
"/date"
, getBookable)
route.Run()
func getBookable(c *gin.Context) {
var b Booking
if
err := c.ShouldBindQuery(&b); err == nil {
c.JSON(http.StatusOK, gin.H{
"message"
:
"Booking dates are valid!"
})
}
else
{
c.JSON(http.StatusBadRequest, gin.H{
"error"
: err.Error()})
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