Bug fixes

src/db.rs

@@ -823,6 +823,8 @@ impl DbAdapter {
         )?;
         self.connection
             .execute("DELETE FROM taddrs WHERE account = ?1", params![account])?;
+        self.connection
+            .execute("DELETE FROM messages WHERE account = ?1", params![account])?;
         self.connection.execute(
             "DELETE FROM secret_shares WHERE account = ?1",
             params![account],
@@ -926,6 +928,12 @@ pub struct ZMessage {
     pub height: u32,
 }
 
+impl ZMessage {
+    pub fn is_empty(&self) -> bool {
+        self.sender.is_none() && self.subject.is_empty() && self.body.is_empty()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use zcash_params::coin::CoinType;

src/transaction.rs

@@ -243,7 +243,9 @@ pub async fn retrieve_tx_info(
             }
             db.store_tx_metadata(tx_info.id_tx, &tx_info)?;
             let z_msg = decode_memo(&tx_info.memo, &tx_info.address, tx_info.timestamp, tx_info.height);
-            db.store_message(tx_info.account, &z_msg)?;
+            if !z_msg.is_empty() {
+                db.store_message(tx_info.account, &z_msg)?;
+            }
         }
         contacts.sort_by(|a, b| a.index.cmp(&b.index));
         for cref in contacts.iter() {