fuck off, I call that a day.

src/util.rs

@@ -1,39 +1,14 @@
-use rusqlite::{Params, Row, Transaction};
+use std::io;
 
 #[derive(Debug)]
 pub enum Error {
     SqlError(rusqlite::Error),
-    DoubleBooking(String),
     InvalidDrawer(String),
     InvalidAmount(String),
     InvalidPayee(String),
     DoubleSpendingError(String),
+    IOError(io::Error),
     Testing(String),
 }
 
 pub type CustomResult<T, E = Error> = Result<T, E>;
-
-pub struct TransactionHelper<'a> {
-    tx: &'a Transaction<'a>,
-}
-
-impl TransactionHelper<'_> {
-    pub fn new<'a>(tx: &'a Transaction) -> TransactionHelper<'a> {
-        TransactionHelper { tx }
-    }
-
-    pub fn execute<P: Params>(&self, sql: &str, params: P) -> CustomResult<usize> {
-        self.tx.execute(sql, params).map_err(Error::SqlError)
-    }
-
-    pub fn query_row<T, P, F>(&self, sql: &str, params: P, f: F) -> CustomResult<T>
-        where
-            P: Params,
-            F: FnOnce(&Row<'_>) -> rusqlite::Result<T>, {
-        self.tx.query_row(sql, params, f).map_err(Error::SqlError)
-    }
-    //
-    // pub fn commit(&self) -> CustomResult<()> {
-    //     self.tx.commit().map_err(Error::SqlError)
-    // }
-}