🐛 Fix Ticker Users API

internal/api/tickers.go

@@ -42,6 +42,12 @@ type TickerLocationParam struct {
 	Lon float64 `json:"lon"`
 }
 
+type TickerUsersParam struct {
+	Users []struct {
+		ID int `json:"id"`
+	} `json:"users" binding:"required"`
+}
+
 type TickerWebsitesParam struct {
 	Websites []TickerWebsiteParam `json:"websites" binding:"required"`
 }
@@ -145,18 +151,24 @@ func (h *handler) PutTickerUsers(c *gin.Context) {
 		return
 	}
 
-	var body struct {
-		Users []storage.User `json:"users" binding:"required"`
-	}
-
+	var body TickerUsersParam
 	err = c.Bind(&body)
 	if err != nil {
 		c.JSON(http.StatusBadRequest, response.ErrorResponse(response.CodeDefault, response.FormError))
 		return
 	}
 
-	ticker.Users = body.Users
+	userIds := make([]int, 0)
+	for _, user := range body.Users {
+		userIds = append(userIds, user.ID)
+	}
+	users, err := h.storage.FindUsersByIDs(userIds)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, response.ErrorResponse(response.CodeDefault, response.StorageError))
+		return
+	}
 
+	ticker.Users = users
 	err = h.storage.SaveTicker(&ticker)
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, response.ErrorResponse(response.CodeDefault, response.StorageError))

internal/api/tickers_test.go

@@ -270,11 +270,25 @@ func (s *TickerTestSuite) TestPutTickerUsers() {
 		s.store.AssertExpectations(s.T())
 	})
 
+	s.Run("when find users not working", func() {
+		s.ctx.Set("ticker", storage.Ticker{})
+		body := `{"users":[{"id":1},{"id":2},{"id":3}]}`
+		s.ctx.Request = httptest.NewRequest(http.MethodPut, "/v1/admin/tickers/1/user", strings.NewReader(body))
+		s.ctx.Request.Header.Add("Content-Type", "application/json")
+		s.store.On("FindUsersByIDs", mock.Anything).Return(nil, errors.New("storage error")).Once()
+		h := s.handler()
+		h.PutTickerUsers(s.ctx)
+
+		s.Equal(http.StatusInternalServerError, s.w.Code)
+		s.store.AssertExpectations(s.T())
+	})
+
 	s.Run("when storage returns error", func() {
 		s.ctx.Set("ticker", storage.Ticker{})
 		body := `{"users":[{"id":1},{"id":2},{"id":3}]}`
 		s.ctx.Request = httptest.NewRequest(http.MethodPut, "/v1/admin/tickers/1/user", strings.NewReader(body))
 		s.ctx.Request.Header.Add("Content-Type", "application/json")
+		s.store.On("FindUsersByIDs", mock.Anything).Return([]storage.User{{ID: 1}, {ID: 2}, {ID: 3}}, nil).Once()
 		s.store.On("SaveTicker", mock.Anything).Return(errors.New("storage error")).Once()
 		h := s.handler()
 		h.PutTickerUsers(s.ctx)
@@ -288,6 +302,7 @@ func (s *TickerTestSuite) TestPutTickerUsers() {
 		body := `{"users":[{"id":1},{"id":2},{"id":3}]}`
 		s.ctx.Request = httptest.NewRequest(http.MethodPut, "/v1/admin/tickers/1/user", strings.NewReader(body))
 		s.ctx.Request.Header.Add("Content-Type", "application/json")
+		s.store.On("FindUsersByIDs", mock.Anything).Return([]storage.User{{ID: 1}, {ID: 2}, {ID: 3}}, nil).Once()
 		s.store.On("SaveTicker", mock.Anything).Return(nil).Once()
 		h := s.handler()
 		h.PutTickerUsers(s.ctx)

internal/storage/sql_storage.go

@@ -54,6 +54,11 @@ func (s *SqlStorage) FindUserByID(id int, opts ...func(*gorm.DB) *gorm.DB) (User
 
 func (s *SqlStorage) FindUsersByIDs(ids []int, opts ...func(*gorm.DB) *gorm.DB) ([]User, error) {
 	users := make([]User, 0)
+
+	if len(ids) == 0 {
+		return users, nil
+	}
+
 	db := s.prepareDb(opts...)
 	err := db.Find(&users, ids).Error
 

internal/storage/sql_storage_test.go

@@ -151,6 +151,12 @@ func (s *SqlStorageTestSuite) TestFindUsersByIDs() {
 		s.Empty(users)
 	})
 
+	s.Run("when empty ids", func() {
+		users, err := s.store.FindUsersByIDs([]int{})
+		s.NoError(err)
+		s.Empty(users)
+	})
+
 	s.Run("when users exist", func() {
 		user.Tickers = []Ticker{{ID: 1}}
 		err := s.db.Create(&user).Error