remove rss dep

Cargo.toml

@@ -16,4 +16,3 @@ serde = { version = "1.0", features = [ "derive" ]}
 serde_json = "1.0"
 chrono =  { version = "0.4", features = ["serde"]}
 tera =  { version = "1.18", features = ["date-locale"]}
-rss = "2.0"

src/model/log.rs

@@ -32,17 +32,16 @@ LIMIT 1000
     }
 
     pub async fn generate_feed(db: &SqlitePool) -> String {
-        let mut channel = ChannelBuilder::default()
-            .title("Ruder App Admin Feed")
-            .description("An RSS feed with activities from app.rudernlinz.at")
-            .build();
-        let mut items: Vec<Item> = vec![];
+        let mut ret = String::from("<?xml version=\"1.0\" encoding=\"utf-8\"?>
+                            <rss version=\"2.0\">
+                            <channel>
+                            <title>Ruder App Admin Feed</title>
+                            <description>An RSS feed with activities from app.rudernlinz.at</description>");
         for log in Self::last(db).await {
-            let mut item = Item::default();
-            item.set_title(format!("({}) {}", log.created_at, log.msg));
-            items.append(&mut vec![item]);
+            ret.push_str("<item>");
+            ret.push_str(&format!("({}) {}", log.created_at, log.msg));
+            ret.push_str("</item>");
         }
-        channel.set_items(items);
-        channel.to_string()
+        ret
     }
 }