path in db

src/db.rs

@@ -53,7 +53,8 @@ impl Ord for Item {
 }
 
 pub struct DB {
-    pub items: HashSet::<Item>
+    pub items: HashSet::<Item>,
+    path: String
 }
 
 impl DB {
@@ -72,7 +73,8 @@ impl DB {
             }
         }
         let result = DB {
-            items: items
+            items: items,
+            path: String::from(path)
         };
         Ok(result)
     }
@@ -82,11 +84,11 @@ impl DB {
         self.items.contains(&item)
     }
 
-    pub fn dump(&self, path: &str) -> io::Result<()> {
+    pub fn dump(&self) -> io::Result<()> {
         let mut file = fs::OpenOptions::new()
             .write(true)
             .append(false)
-            .open(path)?;
+            .open(&self.path)?;
 
         for item in self.items.iter() {
             writeln!(file, "{}", item.id)?;

src/main.rs

@@ -75,7 +75,7 @@ fn add(id: &String) -> io::Result<()> {
     }
 
     db.items.insert(Item::from(id.clone()));
-    db.dump(&*STORAGE_PATH)?;
+    db.dump()?;
     
     Ok(())
 }