SAC-19 User Tag CRUD

backend/src/controllers/user.go

@@ -137,3 +137,25 @@ func (u *UserController) DeleteUser(c *fiber.Ctx) error {
 
 	return c.SendStatus(fiber.StatusNoContent)
 }
+
+func (u *UserController) GetUserTags(c *fiber.Ctx) error {
+	tags, err := u.userService.GetUserTags(c.Params("uid"))
+	if err != nil {
+		return err.FiberError(c)
+	}
+	return c.Status(fiber.StatusOK).JSON(&tags)
+}
+
+func (u *UserController) CreateUserTags(c *fiber.Ctx) error {	
+	var requestBody models.CreateUserTagsBody
+	if err := c.BodyParser(&requestBody); err != nil {
+		return errors.FailedToParseRequestBody.FiberError(c)
+	}
+
+	tags, err := u.userService.CreateUserTags(c.Params("uid"), requestBody)
+	if err != nil {
+		return err.FiberError(c)
+	}
+
+	return c.Status(fiber.StatusCreated).JSON(&tags)
+}

backend/src/errors/user.go

@@ -7,6 +7,10 @@ var (
 		StatusCode: fiber.StatusBadRequest,
 		Message:    "failed to validate user",
 	}
+	FailedToValidateUserTags = Error {
+		StatusCode: fiber.StatusBadRequest,
+		Message: "failed to validate user tags",
+	}
 	FailedToCreateUser = Error{
 		StatusCode: fiber.StatusInternalServerError,
 		Message:    "failed to create user",

backend/src/models/tag.go

@@ -7,7 +7,7 @@ type Tag struct {
 
 	Name string `gorm:"type:varchar(255)" json:"name" validate:"required,max=255"`
 
-	CategoryID uuid.UUID `gorm:"foreignKey:CategoryID" json:"category_id" validate:"required,uuid4"`
+	CategoryID uuid.UUID `json:"category_id" validate:"required,uuid4"`
 
 	User  []User  `gorm:"many2many:user_tags;constraint:OnUpdate:CASCADE,OnDelete:CASCADE;" json:"-" validate:"-"`
 	Club  []Club  `gorm:"many2many:club_tags;constraint:OnUpdate:CASCADE,OnDelete:CASCADE;" json:"-" validate:"-"`

backend/src/models/user.go

@@ -1,5 +1,7 @@
 package models
 
+import "github.com/google/uuid"
+
 type UserRole string
 
 const (
@@ -74,3 +76,7 @@ type UpdateUserRequestBody struct {
 	College   College `json:"college" validate:"omitempty,oneof=CAMD DMSB KCCS CE BCHS SL CPS CS CSSH"`
 	Year      Year    `json:"year" validate:"omitempty,min=1,max=6"`
 }
+
+type CreateUserTagsBody struct {
+	Tags      []uuid.UUID  `json:"tags" validate:"required"`
+}

backend/src/server/server.go

@@ -74,6 +74,11 @@ func userRoutes(router fiber.Router, userService services.UserServiceInterface)
 	users.Get("/:id", userController.GetUser)
 	users.Patch("/:id", userController.UpdateUser)
 	users.Delete("/:id", userController.DeleteUser)
+
+	userTags := users.Group("/:uid/tags")
+
+	userTags.Post("/", userController.CreateUserTags)
+	userTags.Get("/", userController.GetUserTags)
 }
 
 func clubRoutes(router fiber.Router, clubService services.ClubServiceInterface) {

backend/src/services/user.go

@@ -19,6 +19,8 @@ type UserServiceInterface interface {
 	GetUser(id string) (*models.User, *errors.Error)
 	UpdateUser(id string, userBody models.UpdateUserRequestBody) (*models.User, *errors.Error)
 	DeleteUser(id string) *errors.Error
+	GetUserTags(id string) ([]models.Tag, *errors.Error)
+	CreateUserTags(id string, tagIDs models.CreateUserTagsBody) ([]models.Tag, *errors.Error)
 }
 
 type UserService struct {
@@ -107,3 +109,30 @@ func (u *UserService) DeleteUser(id string) *errors.Error {
 
 	return transactions.DeleteUser(u.DB, *idAsUUID)
 }
+
+func (u *UserService) GetUserTags(id string) ([]models.Tag, *errors.Error) {
+	idAsUUID, err := utilities.ValidateID(id)
+	if err != nil {
+		return nil, err
+	}
+
+	return transactions.GetUserTags(u.DB, *idAsUUID)
+}
+
+func (u *UserService) CreateUserTags(id string, tagIDs models.CreateUserTagsBody) ([]models.Tag, *errors.Error) {
+	// Validate the id:
+	idAsUUID, err := utilities.ValidateID(id)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := u.Validate.Struct(tagIDs); err != nil {
+		return nil, &errors.FailedToValidateUserTags
+	}
+
+	// Retrieve a list of valid tags from the ids:
+	tags, err := transactions.GetTagsByIDs(u.DB, tagIDs.Tags)
+
+	// Update the user to reflect the new tags:
+	return transactions.CreateUserTags(u.DB, *idAsUUID, tags)
+}

backend/src/transactions/tag.go

@@ -2,7 +2,6 @@ package transactions
 
 import (
 	stdliberrors "errors"
-
 	"github.com/GenerateNU/sac/backend/src/errors"
 	"github.com/google/uuid"
 
@@ -56,3 +55,15 @@ func DeleteTag(db *gorm.DB, id uuid.UUID) *errors.Error {
 
 	return nil
 }
+
+func GetTagsByIDs(db *gorm.DB, selectedTagIDs []uuid.UUID) ([]models.Tag, *errors.Error) {
+	if len(selectedTagIDs) != 0 {
+		var tags []models.Tag
+		if err := db.Model(models.Tag{}).Where("id IN ?", selectedTagIDs).Find(&tags).Error; err != nil {
+			return nil, &errors.FailedToGetTag
+		}
+
+		return tags, nil
+	}
+	return []models.Tag{}, nil
+}

backend/src/transactions/user.go

@@ -75,3 +75,30 @@ func DeleteUser(db *gorm.DB, id uuid.UUID) *errors.Error {
 	}
 	return nil
 }
+
+func GetUserTags(db *gorm.DB, id uuid.UUID) ([]models.Tag, *errors.Error) {
+	var tags []models.Tag
+
+	user, err := GetUser(db, id)
+	if err != nil {
+		return nil, &errors.UserNotFound
+	}
+
+	if err := db.Model(&user).Association("Tag").Find(&tags) ; err != nil {
+		return nil, &errors.FailedToGetTag
+	}
+	return tags, nil
+}
+
+func CreateUserTags(db *gorm.DB, id uuid.UUID, tags []models.Tag) ([]models.Tag, *errors.Error) {
+	user, err := GetUser(db, id)
+	if err != nil {
+		return nil, &errors.UserNotFound
+	}
+
+	if err := db.Model(&user).Association("Tag").Replace(tags); err != nil {
+		return nil, &errors.FailedToUpdateUser
+	}
+
+	return tags, nil
+}