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[pallet-assets] add asset_exists(id: AssetId) function (#12782)

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* check if an asset exists via loose coupling

* Update frame/support/src/traits/tokens/fungibles.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: parity-processbot <>
This commit is contained in:
dharjeezyjoe petrowskiparity-processbot
 authored and GitHub committed 2022-12-08 14:09:17 +00:00
1 parent 9a014d1ecd
commit 200f49d66d
2 files changed
+7
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substrate/frame/assets/src/impl_fungibles.rs
+4
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@@ -59,6 +59,10 @@ impl<T: Config<I>, I: 'static> fungibles::Inspect<<T as SystemConfig>::AccountId
) -> WithdrawConsequence<Self::Balance> {
Pallet::<T, I>::can_decrease(asset, who, amount, false)
}
fn asset_exists(asset: Self::AssetId) -> bool {
Asset::<T, I>::contains_key(asset)
}
}
impl<T: Config<I>, I: 'static> fungibles::InspectMetadata<<T as SystemConfig>::AccountId>