only show public quotes to logged out users

src/quotes/mod.rs

@@ -113,6 +113,20 @@ impl Quote {
             None => Ok(None),
         }
     }
+    pub fn get_newest_public(conn: &Connection) -> Result<Option<Quote>, QuoteError> {
+        let id: Option<Uuid> = conn
+            .query_row(
+                "SELECT id FROM quotes ORDER BY id DESC LIMIT 1 WHERE public = 1",
+                (),
+                |r| r.get(0),
+            )
+            .optional()?;
+
+        match id {
+            Some(id) => Ok(Some(Self::get_by_id(conn, id)?)),
+            None => Ok(None),
+        }
+    }
     pub fn get_chronological_offset(
         conn: &Connection,
         offset: i64,