Fix phone taken user error

web/api/messages.go

@@ -16,6 +16,7 @@ var messages = map[MessageID]string{
 	ErrorAPIUsernameTaken:                    "Username is taken. Try to choose another one",
 	ErrorAPIUsernameEmailOrPhoneTaken:        "Username, email or/and phone is taken. Try to choose another one",
 	ErrorAPIEmailTaken:                       "Email is taken. Try to choose another one",
+	ErrorAPIPhoneTaken:                       "Phone is taken. Try to choose another one",
 	ErrorAPIInviteTokenServerError:           "Unable to create invite token. Try again or contact support team",
 	ErrorAPIInviteUnableToInvalidate:         "Unable to invalidate invite. Try again or contact support team",
 	ErrorAPIInviteUnableToSave:               "Unable to save invite. Try again or contact support team",
@@ -71,6 +72,8 @@ const (
 	ErrorAPIUsernameEmailOrPhoneTaken = "error.api.username_phone_email.taken"
 	// ErrorAPIEmailTaken is when email is already taken.
 	ErrorAPIEmailTaken = "error.api.email.taken"
+	// ErrorAPIPhoneTaken is when phone is already taken.
+	ErrorAPIPhoneTaken = "error.api.phone.taken"
 	// ErrorAPIInviteTokenServerError is for invite token creation issues.
 	ErrorAPIInviteTokenServerError = "error.api.invite_token.server_error"
 	// ErrorAPIInviteUnableToInvalidate is when invite cannot be invalidated.

web/api/update_user.go

@@ -49,7 +49,7 @@ func (ar *Router) UpdateUser() http.HandlerFunc {
 		// Check that phone is not taken.
 		if d.updatePhone {
 			if _, err := ar.server.Storages().User.UserByPhone(d.NewPhone); err == nil {
-				ar.Error(w, ErrorAPIEmailTaken, http.StatusBadRequest, "", "UpdateUser.updatePhone && UserByPhone")
+				ar.Error(w, ErrorAPIPhoneTaken, http.StatusBadRequest, "", "UpdateUser.updatePhone && UserByPhone")
 				return
 			}
 		}