Struct DialogueStorage 

pub struct DialogueStorage { /* private fields */ }

Per-user or per-chat FSM state keyed by (chat_id, user_id).

Stores the current dialogue state as a type-erased value so the state machine type does not need to be known at the storage level. Per-user conversation state store for finite state machines.

State is keyed by (chat_id, user_id) pairs. Any 'static type can be stored — no shared trait is required. Use this to track where a user is in a multi-step conversation.

Example

use rustigram_bot::state::DialogueStorage;

#[derive(Clone)]
enum State { AwaitingName, AwaitingEmail { name: String } }

let storage = DialogueStorage::new();
storage.set(chat_id, user_id, State::AwaitingName);

match storage.get::<State>(chat_id, user_id) {
    Some(State::AwaitingName) => { /* ask for name */ }
    Some(State::AwaitingEmail { name }) => { /* ask for email */ }
    None => { /* no active dialogue */ }
}

storage.remove(chat_id, user_id); // clear when done

Implementations

impl DialogueStorage

pub fn new() -> Self

Creates a new empty DialogueStorage.

pub fn set<S: Any + Send + Sync + 'static>( &self, chat_id: i64, user_id: i64, state: S, )

Sets the dialogue state for a (chat_id, user_id) pair.

pub fn get<S: Any + Send + Sync + Clone + 'static>( &self, chat_id: i64, user_id: i64, ) -> Option<S>

Returns the dialogue state for a (chat_id, user_id) pair.

pub fn remove(&self, chat_id: i64, user_id: i64)

Removes the dialogue state for a (chat_id, user_id) pair.

Trait Implementations

impl Clone for DialogueStorage

fn clone(&self) -> DialogueStorage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for DialogueStorage

fn default() -> DialogueStorage

Returns the “default value” for a type.