feat(registration): already registered

Author: AfandyW

app/events/repository/get_registration_event.go

@@ -27,3 +27,14 @@ func (repo *repository) GetRegistrationEventByID(ctx context.Context, id uint) (
 
 	return data, err
 }
+
+func (repo *repository) GetRegistrationEventUserByStatus(ctx context.Context, eventID uint, userID uint, statuses []string) (data []domain.RegistrationEvent, err error) {
+	db := repo.db.DB(ctx).Model(&domain.RegistrationEvent{})
+
+	err = db.Where("event_id = ?", eventID).Where("user_id = ?", userID).Where("status IN (?)", statuses).Find(&data).Error
+	if err != nil {
+		return
+	}
+
+	return data, err
+}

app/events/usecase/create_event_pay.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 
+	"github.com/hammer-code/lms-be/constants"
 	"github.com/hammer-code/lms-be/domain"
 	"github.com/hammer-code/lms-be/utils"
 )
@@ -37,7 +38,7 @@ func (uc usecase) CreateEventPay(ctx context.Context, payload domain.EventPayPay
 			EventID:             rEvent.EventID,
 			ImageProofPayment:   payload.ImageProofPayment,
 			NetAmount:           payload.NetAmount,
-			Status:              "PENDING",
+			Status:              constants.PENDING,
 			OrderNO:             rEvent.OrderNo,
 		})
 

app/events/usecase/create_registration_event.go

@@ -9,6 +9,7 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/hammer-code/lms-be/constants"
 	"github.com/hammer-code/lms-be/domain"
 	contextkey "github.com/hammer-code/lms-be/pkg/context_key"
 	"github.com/hammer-code/lms-be/pkg/email"
@@ -19,6 +20,20 @@ import (
 )
 
 func (uc usecase) CreateRegistrationEvent(ctx context.Context, payload domain.RegisterEventPayload) (domain.RegisterEventResponse, error) {
+	// get user data from context
+	userData := ctx.Value(contextkey.UserKey).(domain.User)
+
+	registrations, err := uc.repository.GetRegistrationEventUserByStatus(ctx, payload.EventID, uint(userData.ID), []string{constants.PENDING, constants.SUCCESS})
+	if err != nil {
+		err = utils.NewInternalServerError(ctx, err)
+		return domain.RegisterEventResponse{}, err
+	}
+
+	if len(registrations) != 0 {
+		err = utils.NewBadRequestError(ctx, "you have already registered", errors.New("you have already registered"))
+		return domain.RegisterEventResponse{}, err
+	}
+
 	event, err := uc.repository.GetEvent(ctx, payload.EventID)
 	if err != nil {
 		err = utils.NewInternalServerError(ctx, err)
@@ -59,9 +74,6 @@ func (uc usecase) CreateRegistrationEvent(ctx context.Context, payload domain.Re
 		}
 	}
 
-	// get user data from context
-	userData := ctx.Value(contextkey.UserKey).(domain.User)
-
 	// generate order number
 	// format: TXE-<event_id>-<year><month><day><hash
 	hash := hash.GenerateHash(time.Now().Format("2006-01-02 15:04:05"))
@@ -124,9 +136,9 @@ func (uc usecase) CreateRegistrationEvent(ctx context.Context, payload domain.Re
 	}
 
 	// is free event or not
-	status := "SUCCESS"
+	status := constants.SUCCESS
 	if event.Price != 0.0 {
-		status = "PENDING"
+		status = constants.PENDING
 		emailPayload.SendEmail(ctx)
 	} else {
 		logrus.Info("free event, send email registration success")

constants/event.go

@@ -12,6 +12,9 @@ const (
 	EventTypeConference EventType = "Conference"
 	EventTypeTechTalk   EventType = "Tech Talk"
 	EventTypeNgobar     EventType = "Ngobar"
+
+	PENDING = "PENDING"
+	SUCCESS = "SUCCESS"
 )
 
 func GetValidEventTypes() []EventType {

domain/event.go

@@ -31,6 +31,7 @@ type EventRepository interface {
 	UpdateEvent(ctx context.Context, event Event) error
 	ListRegistrationByEvent(ctx context.Context, eventID uint, pagination FilterPagination) (data []RegistrationEvent, totalCount int64, err error)
 	GetRegistrationEventByID(ctx context.Context, id uint) (data RegistrationEvent, err error)
+	GetRegistrationEventUserByStatus(ctx context.Context, eventID uint, userID uint, statuses []string) (data []RegistrationEvent, err error)
 }
 
 type EventUsecase interface {