Add saving periods

src/db/errors.rs

@@ -4,6 +4,16 @@ use serde::{Serialize, Serializer};
 pub enum DatabaseError {
     InsertError,
     InsertGetError,
+    NotFound,
+}
+
+impl DatabaseError {
+    fn to_code(&self) -> u32 {
+        match self {
+            DatabaseError::NotFound => 404,
+            _ => 500
+        }
+    }
 }
 
 impl Serialize for DatabaseError {
@@ -11,8 +21,9 @@ impl Serialize for DatabaseError {
     where
         S: Serializer,
     {
-        let mut s = serializer.serialize_struct("error", 2)?;
-        s.serialize_field("code", &500)?;
+        let mut s = serializer.serialize_struct("error", 3)?;
+        s.serialize_field("type", "database-error")?;
+        s.serialize_field("code", &self.to_code())?;
         s.serialize_field("description", &String::from(self))?;
         s.end()
     }
@@ -25,6 +36,7 @@ impl From<&DatabaseError> for String {
             DatabaseError::InsertGetError => {
                 String::from("error retrieving new entry from database (your entry was saved)")
             }
+            DatabaseError::NotFound => String::from("model was not found in database")
         }
     }
 }