add ability to format Row correctly

src/csv.rs

@@ -13,6 +13,8 @@ pub struct Row {
 }
 
 impl Row {
+    const DF: &str = "%Y-%m-%d %H:%M";
+
     pub fn new(
         name: &str,
         hut_type: &str,
@@ -71,3 +73,25 @@ fn make_checksum() -> String {
 
     format!("{}{}", base, last)
 }
+
+impl std::fmt::Display for Row {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{},{},{},{},{},N,{},{},{},{},{},{},{},{}",
+            self.name,
+            self.name,
+            self.hut_type,
+            self.path,
+            self.tare,
+            self.mat_id,
+            self.quantity,
+            self.lot_id,
+            self.uom,
+            self.lot_status,
+            self.born.format(Self::DF),
+            self.born.format(Self::DF),
+            self.expire.format(Self::DF),
+        )
+    }
+}