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Fix "Custom Validators" example #2186

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merged 2 commits into from
Dec 18, 2019
Merged

Fix "Custom Validators" example #2186

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0c6486d
Update fixed error code from merged commit
mosdeo Dec 16, 2019
c0ba35c
Fixed incorrect testing date.
mosdeo Dec 16, 2019
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15 changes: 6 additions & 9 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -704,25 +704,22 @@ package main

import (
"net/http"
"reflect"
"time"

"github.com/gin-gonic/gin"
"github.com/gin-gonic/gin/binding"
"gopkg.in/go-playground/validator.v8"
"gopkg.in/go-playground/validator.v9"
)

// Booking contains binded and validated data.
type Booking struct {
CheckIn time.Time `form:"check_in" binding:"required,bookabledate" time_format:"2006-01-02"`
CheckIn time.Time `form:"check_in" binding:"required" time_format:"2006-01-02"`
CheckOut time.Time `form:"check_out" binding:"required,gtfield=CheckIn" time_format:"2006-01-02"`
}

func bookableDate(
v *validator.Validate, topStruct reflect.Value, currentStructOrField reflect.Value,
field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string,
) bool {
if date, ok := field.Interface().(time.Time); ok {
var bookableDate validator.Func = func(fl validator.FieldLevel) bool {
date, ok := fl.Field().Interface().(time.Time)
if ok {
today := time.Now()
if today.After(date) {
return false
Expand Down Expand Up @@ -756,7 +753,7 @@ func getBookable(c *gin.Context) {
$ curl "localhost:8085/bookable?check_in=2018-04-16&check_out=2018-04-17"
{"message":"Booking dates are valid!"}

$ curl "localhost:8085/bookable?check_in=2018-03-08&check_out=2018-03-09"
$ curl "localhost:8085/bookable?check_in=2018-03-10&check_out=2018-03-09"
{"error":"Key: 'Booking.CheckIn' Error:Field validation for 'CheckIn' failed on the 'bookabledate' tag"}
```

Expand Down