add notgroup function

controllers/user.go

@@ -103,3 +103,29 @@ func GetGroupsUser(c *fiber.Ctx) error {
 		}
 	}
 }
+
+// @Summary Renvoie la liste des groupes où ne se trouve pas un utilisateur
+// @Produce json
+// @Success 200 {array} models.Group "Liste des ids des groupes"
+// @Failure 403
+// @Failure 404
+// @Failure 500
+// @Router /users/{id}/not/groups [get]
+func GetNotGroupsUser(c *fiber.Ctx) error {
+	token := checkCookie(c)
+	if token == "" {
+		return c.SendStatus(fiber.StatusForbidden)
+	} else {
+		id := c.Params("id")
+		groups, err := dao.GetGroupNotByMember(id)
+		if err == mongo.ErrNoDocuments {
+			return c.SendStatus(fiber.StatusNotFound)
+		} else if err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+				"error": fmt.Sprint(err),
+			})
+		} else {
+			return c.Status(fiber.StatusOK).JSON(groups)
+		}
+	}
+}

dao/group.go

@@ -45,6 +45,27 @@ func GetGroupByMember(id string) (group []models.Group, err error) {
 	}
 }
 
+func GetGroupNotByMember(id string) (group []models.Group, err error) {
+	db, _ := get()
+	objectId, err := primitive.ObjectIDFromHex(id)
+	defer disconnect(db.Client())
+	coll := db.Collection("groups")
+
+	cursor, err := coll.Find(context.TODO(), bson.D{{"members", bson.D{{"$ne", objectId}}}})
+	defer cursor.Close(context.TODO())
+	if err != nil {
+		return nil, err
+	}
+
+	err = cursor.All(context.TODO(), &group)
+
+	if err != nil {
+		return nil, err
+	} else {
+		return group, nil
+	}
+}
+
 func CheckMemberInGroup(idUser string, idGroup string) (ret bool, err error) {
 	db, _ := get()
 	userObject, err := primitive.ObjectIDFromHex(idUser)