Delete orphan txs after accounts are deleted concurrently with sync

src/db.rs

@@ -166,6 +166,7 @@ impl DbAdapter {
 
     pub fn init_db(&mut self) -> anyhow::Result<()> {
         self.delete_incomplete_scan()?;
+        self.delete_orphan_transactions()?;
         Ok(())
     }
 
@@ -1087,6 +1088,12 @@ impl DbAdapter {
         Ok(())
     }
 
+    pub fn delete_orphan_transactions(&self) -> anyhow::Result<()> {
+        self.connection.execute("DELETE FROM transactions WHERE id_tx IN (SELECT tx.id_tx FROM transactions tx LEFT JOIN accounts a ON tx.account = a.id_account WHERE a.id_account IS NULL)",
+            [])?;
+        Ok(())
+    }
+
     pub fn store_message(&self, account: u32, message: &ZMessage) -> anyhow::Result<()> {
         self.connection.execute("INSERT INTO messages(account, id_tx, sender, recipient, subject, body, timestamp, height, incoming, read) VALUES (?1,?2,?3,?4,?5,?6,?7,?8,?9,?10)",
                                 params![account, message.id_tx, message.sender, message.recipient, message.subject, message.body, message.timestamp, message.height, message.incoming, false])?;