Enhance change_falukant_user_money: Switch to literal SQL execution for update_money to resolve serialization issues with parameterized calls, improving reliability.

src/worker/base.rs

@@ -201,19 +201,29 @@ impl BaseWorker {
         let uid_i32: i32 = falukant_user_id;
         let money_str = format!("{:.2}", adjusted_money_change);
 
-        let p1: &(dyn ToSql + Sync) = &uid_i32;
-        let p2: &(dyn ToSql + Sync) = &money_str;
-        let p3: &(dyn ToSql + Sync) = &action;
+    // Note: we intentionally avoid parameterized call due to serialization
+    // issues in this environment and instead execute a literal SQL below.
 
         eprintln!(
-            "[BaseWorker] change_falukant_user_money: update_money(user_id={}, money_change='{}', action={})",
+            "[BaseWorker] change_falukant_user_money: executing literal update_money(user_id={}, money_change='{}', action={})",
             uid_i32, money_str, action
         );
 
-    // Execute parameterized
-    let _ = conn.execute("update_money", &[p1, p2, p3])?;
+        // Use a literal SQL call because parameterized execution keeps failing
+        // with "error serializing parameter 1" in this environment.
+        fn escape_sql_literal(s: &str) -> String {
+            s.replace('\'', "''")
+        }
+        let escaped_action = escape_sql_literal(action);
+        let sql = format!(
+            "SELECT falukant_data.update_money({uid}, {money}::numeric, '{act}');",
+            uid = uid_i32,
+            money = money_str,
+            act = escaped_action
+        );
 
-    Ok(())
+        let _ = conn.query(&sql)?;
+        Ok(())
     }
 }