added the version number to the chat object

api/libs/database/src/models.rs

@@ -114,6 +114,7 @@ pub struct Chat {
     pub public_expiry_date: Option<DateTime<Utc>>,
     pub most_recent_file_id: Option<Uuid>,
     pub most_recent_file_type: Option<String>,
+    pub most_recent_version_number: Option<i32>,
 }
 
 #[derive(Queryable, Insertable, Associations, Debug)]

api/libs/database/src/schema.rs

@@ -98,6 +98,7 @@ diesel::table! {
         most_recent_file_id -> Nullable<Uuid>,
         #[max_length = 255]
         most_recent_file_type -> Nullable<Varchar>,
+        most_recent_version_number -> Nullable<Int4>,
     }
 }
 

api/libs/handlers/src/chats/duplicate_chat_handler.rs

@@ -82,6 +82,7 @@ pub async fn duplicate_chat_handler(
         public_expiry_date: None,
         most_recent_file_id: source_chat.most_recent_file_id,
         most_recent_file_type: source_chat.most_recent_file_type.clone(),
+        most_recent_version_number: source_chat.most_recent_version_number,
     };
 
     // Insert the new chat record

api/libs/handlers/src/chats/list_chats_handler.rs

@@ -33,6 +33,7 @@ pub struct ChatListItem {
     pub last_edited: String,
     pub latest_file_id: Option<String>,
     pub latest_file_type: Option<String>,
+    pub latest_version_number: Option<i32>,
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -58,6 +59,7 @@ struct ChatWithUser {
     pub created_by: Uuid,
     pub most_recent_file_id: Option<Uuid>, 
     pub most_recent_file_type: Option<String>,
+    pub most_recent_version_number: Option<i32>,
     // User fields
     pub user_name: Option<String>,
     pub user_attributes: Value,
@@ -128,6 +130,7 @@ pub async fn list_chats_handler(
             chats::created_by,
             chats::most_recent_file_id,
             chats::most_recent_file_type,
+            chats::most_recent_version_number,
             users::name.nullable(),
             users::attributes,
         ))
@@ -158,6 +161,7 @@ pub async fn list_chats_handler(
                 last_edited: chat.updated_at.to_rfc3339(),
                 latest_file_id: chat.most_recent_file_id.map(|id| id.to_string()),
                 latest_file_type: chat.most_recent_file_type,
+                latest_version_number: chat.most_recent_version_number,
             }
         })
         .collect();

api/libs/handlers/src/chats/post_chat_handler.rs

@@ -2101,6 +2101,7 @@ async fn initialize_chat(
             public_expiry_date: None,
             most_recent_file_id: None,
             most_recent_file_type: None,
+            most_recent_version_number: None,
         };
 
         // Create initial message

api/migrations/2025-04-08-213658_add_most_recent_version_number_to_chats/down.sql

@@ -0,0 +1,4 @@
+-- This file should undo anything in `up.sql`
+
+ALTER TABLE chats
+DROP COLUMN most_recent_version_number;

api/migrations/2025-04-08-213658_add_most_recent_version_number_to_chats/up.sql

@@ -0,0 +1,4 @@
+-- Your SQL goes here
+
+ALTER TABLE chats
+ADD COLUMN most_recent_version_number INTEGER;

api/server/src/routes/rest/routes/chats/duplicate_chat.rs

@@ -136,6 +136,7 @@ mod tests {
             public_expiry_date: None,
             most_recent_file_id: None,
             most_recent_file_type: None,
+            most_recent_version_number: None,
         };
 
         let mut conn = get_pg_pool().get().await.unwrap();