add validation

main.go

@@ -12,6 +12,8 @@ import (
 	"gorm.io/gorm/logger"
 	"log"
 	"os"
+	"reflect"
+	"strings"
 	"time"
 )
 
@@ -40,6 +42,13 @@ func main() {
 	db.AutoMigrate(&model.Event{})
 
 	validate := validator.New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+		if name == "-" {
+			return ""
+		}
+		return name
+	})
 
 	var h = &handler.Handler{DB: db, Validator: validate}
 

model/event.go

@@ -21,8 +21,8 @@ type Event struct {
 }
 
 type CreateEvent struct {
-	Start   time.Time           `json:"start" validate:"required"`
-	End     time.Time           `json:"end" validate:"required"`
-	Person  PersonalInformation `json:"person" validate:"required"`
+	Start   time.Time            `json:"start" validate:"required,gt"`
+	End     time.Time            `json:"end" validate:"required,gtfield=Start"`
+	Person  *PersonalInformation `json:"person" validate:"required,dive"`
 	MedicId uuid.UUID            `json:"medic_id" validate:"required"`
 }

model/pd.go

@@ -3,11 +3,11 @@ package model
 import "github.com/google/uuid"
 
 type PersonalInformation struct {
-	ID         uuid.UUID `json:"id,omitempty"`
-	FirstName  string    `json:"first_name,omitempty"`
-	LastName   string    `json:"last_name,omitempty"`
-	Patronymic string    `json:"patronymic,omitempty"`
-	Phone      string    `json:"phone,omitempty"`
+	ID         uuid.UUID `json:"id,omitempty" validate:"required_without_all=FirstName LastName Patronymic Phone"`
+	FirstName  string    `json:"first_name,omitempty" validate:"required_without=ID"`
+	LastName   string    `json:"last_name,omitempty" validate:"required_without=ID"`
+	Patronymic string    `json:"patronymic,omitempty" validate:"required_without=ID"`
+	Phone      string    `json:"phone,omitempty" validate:"required_without=ID"`
 }
 
 type PersonalInformationCreate struct {