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Return account's asset balances (#13352)

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* Runtime method to get user's assets balances

* Fix test (typo)

* Update frame/assets/src/functions.rs

* Remove instance param

* Update frame/assets/src/functions.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Remove instance param

* Refactor

* Chore

* Update doc

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: parity-processbot <>
This commit is contained in:
Jegor Sidorenko
2023-03-02 15:58:41 +02:00
committed by GitHub
parent 2c37de32bf
commit 7981d4aa59
4 changed files with 60 additions and 1 deletions
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substrate/frame/assets/src/functions.rs
+7
View File
@@ -924,4 +924,11 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
Ok(())
})
}
/// Returns all the non-zero balances for all assets of the given `account`.
pub fn account_balances(account: T::AccountId) -> Vec<(T::AssetId, T::Balance)> {
Asset::<T, I>::iter_keys()
.filter_map(|id| Self::maybe_balance(id, account.clone()).map(|balance| (id, balance)))
.collect::<Vec<_>>()
}
}
substrate/frame/assets/src/tests.rs
+4 -1
View File
@@ -37,11 +37,14 @@ fn asset_ids() -> Vec<u32> {
fn basic_minting_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(RuntimeOrigin::root(), 0, 1, true, 1));
assert_ok!(Assets::force_create(RuntimeOrigin::root(), 1, 1, true, 1));
assert_ok!(Assets::mint(RuntimeOrigin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::mint(RuntimeOrigin::signed(1), 0, 2, 100));
assert_eq!(Assets::balance(0, 2), 100);
assert_eq!(asset_ids(), vec![0, 999]);
assert_eq!(asset_ids(), vec![0, 1, 999]);
assert_ok!(Assets::mint(RuntimeOrigin::signed(1), 1, 1, 100));
assert_eq!(Assets::account_balances(1), vec![(0, 100), (999, 100), (1, 100)]);
});
}