fix a register event emit issue

Signed-off-by: Toby Yan <me@tobyan.com>

app/http/controllers/register.go

@@ -2,22 +2,22 @@ package controllers
 
 import (
 	"errors"
+	"log"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
+	"github.com/totoval/framework/hub"
 
 	"github.com/totoval/framework/config"
 	"github.com/totoval/framework/helpers"
 	"github.com/totoval/framework/helpers/m"
 	"github.com/totoval/framework/http/controller"
-	"github.com/totoval/framework/hub"
 	"github.com/totoval/framework/model/helper"
 	"github.com/totoval/framework/utils/crypt"
 	"github.com/totoval/framework/utils/jwt"
 
 	"totoval/app/events"
 	pbs "totoval/app/events/protocol_buffers"
-
 	"totoval/app/http/requests"
 	"totoval/app/models"
 )
@@ -46,6 +46,7 @@ func (r *Register) Register(c *gin.Context) {
 	}()
 
 	var token string
+	var userId uint
 	m.Transaction(func(TransactionHelper *helper.Helper) {
 		// determine if exist
 		user := models.User{
@@ -63,20 +64,6 @@ func (r *Register) Register(c *gin.Context) {
 			panic(errors.New(helpers.L(c, "auth.register.failed_system_error")))
 		}
 
-		// emit user-registered event
-		ur := events.UserRegistered{}
-		param := &pbs.UserRegistered{
-			UserId:              uint32(*user.ID),
-			AffiliationFromCode: "",
-		}
-		if requestData.AffiliationFromCode != nil {
-			param.AffiliationFromCode = *requestData.AffiliationFromCode
-		}
-		ur.SetParam(param)
-		if errs := hub.Emit(&ur); errs != nil {
-			panic(errors.New(helpers.L(c, "auth.register.failed_system_error")))
-		}
-
 		// create jwt
 		newJwt := jwt.NewJWT(config.GetString("auth.sign_key"))
 		username := ""
@@ -89,13 +76,28 @@ func (r *Register) Register(c *gin.Context) {
 			panic(helpers.L(c, "auth.register.failed_token_generate_error"))
 		}
 
+		userId = *user.ID
 	}, 1)
 
 	if responseErr != nil {
 		c.JSON(http.StatusUnprocessableEntity, gin.H{"error": responseErr.Error()})
 		return
 	}
 
+	// emit user-registered event
+	ur := events.UserRegistered{}
+	param := &pbs.UserRegistered{
+		UserId:              uint32(userId),
+		AffiliationFromCode: "",
+	}
+	if requestData.AffiliationFromCode != nil {
+		param.AffiliationFromCode = *requestData.AffiliationFromCode
+	}
+	ur.SetParam(param)
+	if errs := hub.Emit(&ur); errs != nil {
+		log.Println("user registered event emit failed", ur, errs)
+	}
+
 	c.JSON(http.StatusOK, gin.H{"token": token})
 	return
 }