try to fix problem with vcard mutable references

1 files changed, 5 insertions, 1 deletions

diff --git a/src/viewmodel/telephone.rs b/src/viewmodel/telephone.rs
index b67b0fb..f90df5d 100644
--- a/src/viewmodel/telephone.rs
+++ b/src/viewmodel/telephone.rs
@@ -108,7 +108,11 @@ impl VCardPropertyInputObject<properties::Telephone, TelephoneView> for Telephon
             },
         ]
     }
-    fn to_vcard_property(&self) -> Result<properties::Telephone, VCardPropertyInputError> {
+    fn is_empty(&self) -> bool {
+        self.number.is_empty() &&
+        self.extension.is_empty()
+    }
+    fn to_vcard_property(&self) -> Result<properties::Telephone, Error> { // TODO error handling
         let mut telephone = properties::Telephone::from_telephone_value(
             values::telephone_value::TelephoneValue::from_telephone_number_str(
                 self.number.clone(),