Generalized function name

src/db.rs

@@ -1,8 +1,7 @@
+use rusqlite::types::Value;
 use rusqlite::{Connection, Result};
 use std::sync::Mutex;
 
-use rusqlite::types::Value;
-
 pub struct Db {
     conn: Mutex<Connection>,
 }
@@ -14,10 +13,13 @@ impl Db {
         })
     }
 
-    pub fn get_users(&self) -> Result<(Vec<String>, Vec<Vec<String>>)> {
+    pub fn get_table(&self, table: &str) -> Result<(Vec<String>, Vec<Vec<String>>)> {
         let conn = self.conn.lock().unwrap();
 
-        let mut stmt = conn.prepare("SELECT * FROM users")?;
+        // WARNING: table name is interpolated → trust only internal input
+        let query = format!("SELECT * FROM {table}");
+
+        let mut stmt = conn.prepare(&query)?;
 
         let columns = stmt
             .column_names()
@@ -28,7 +30,7 @@ impl Db {
         let col_count = stmt.column_count();
 
         let rows_iter = stmt.query_map([], move |row| {
-            let mut r = Vec::new();
+            let mut r = Vec::with_capacity(col_count);
 
             for i in 0..col_count {
                 let val: Value = row.get(i)?;
@@ -37,8 +39,8 @@ impl Db {
                     Value::Null => "<null>".to_string(),
                     Value::Integer(i) => i.to_string(),
                     Value::Real(f) => f.to_string(),
-                    Value::Text(t) => t, // already String
-                    Value::Blob(_) => "<blob>".to_string(),
+                    Value::Text(t) => t,
+                    Value::Blob(b) => format!("<blob {} bytes>", b.len()),
                 };
 
                 r.push(s);
@@ -47,10 +49,7 @@ impl Db {
             Ok(r)
         })?;
 
-        let mut rows = Vec::new();
-        for r in rows_iter {
-            rows.push(r?);
-        }
+        let rows = rows_iter.collect::<Result<Vec<_>>>()?;
 
         Ok((columns, rows))
     }

src/routes.rs

@@ -1,4 +1,4 @@
-use askama::Template; // REQUIRED
+use askama::Template;
 
 use axum::{extract::State, response::Html};
 use std::sync::Arc;
@@ -14,10 +14,11 @@ pub struct TableTemplate {
 }
 
 pub async fn index(State(db): State<Arc<Db>>) -> Html<String> {
-    let (columns, rows) = db.get_users().unwrap();
+    let table_name = "users";
+    let (columns, rows) = db.get_table(table_name).unwrap();
 
     let tmpl = TableTemplate {
-        table_name: "users".into(),
+        table_name: table_name.into(),
         columns,
         rows,
     };