miden-ntx-builder 0.16.1

Miden network transaction builder
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

//! Resolves the accounts whose pending feature notes just gained a sponsorship.

use miden_node_db::DatabaseError;
use miden_node_db::sqlite::{InList, WriteTx};
use miden_protocol::account::AccountId;

use crate::sponsorship::SponsorshipNote;

const SQL: &str = include_str!("sponsored_account.sql");

/// Returns, for each sponsorship, the account targeted by the pending feature note it is bound to.
///
/// The result may name the same account several times (once per sponsorship); the coordinator
/// counts every occurrence towards the account's work counter.
pub fn get_target_account_ids_for_sponsor_notes(
    tx: &WriteTx<'_>,
    sponsorships: &[SponsorshipNote],
) -> Result<Vec<AccountId>, DatabaseError> {
    let feature_note_ids =
        InList::from_values(sponsorships.iter().map(SponsorshipNote::feature_note_id));

    tx.query(SQL, &[&feature_note_ids], |row| row.get::<AccountId>(0))
}