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helper macro to create storage types on the fly (#8456)

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* helper macro to create storage types on the fly

* Update frame/support/src/lib.rs

Co-authored-by: Alexander Popiak <alexander.popiak@parity.io>

* update lock

* fix test;

* Fix line width

Co-authored-by: Alexander Popiak <alexander.popiak@parity.io>
This commit is contained in:
Kian Paimani
2021-03-30 11:40:56 +02:00
committed by GitHub
parent 217c4be226
commit 19f9224e5d
3 changed files with 140 additions and 55 deletions
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substrate/frame/elections-phragmen/src/migrations_3_0_0.rs
+15 -33
View File
@@ -21,7 +21,6 @@ use codec::{Encode, Decode, FullCodec};
use sp_std::prelude::*;
use frame_support::{
RuntimeDebug, weights::Weight, Twox64Concat,
storage::types::{StorageMap, StorageValue},
traits::{GetPalletVersion, PalletVersion},
};
@@ -51,38 +50,21 @@ pub trait V2ToV3 {
type Balance: 'static + FullCodec + Copy;
}
struct __Candidates;
impl frame_support::traits::StorageInstance for __Candidates {
fn pallet_prefix() -> &'static str { "PhragmenElection" }
const STORAGE_PREFIX: &'static str = "Candidates";
}
#[allow(type_alias_bounds)]
type Candidates<T: V2ToV3> = StorageValue<__Candidates, Vec<(T::AccountId, T::Balance)>>;
struct __Members;
impl frame_support::traits::StorageInstance for __Members {
fn pallet_prefix() -> &'static str { "PhragmenElection" }
const STORAGE_PREFIX: &'static str = "Members";
}
#[allow(type_alias_bounds)]
type Members<T: V2ToV3> = StorageValue<__Members, Vec<SeatHolder<T::AccountId, T::Balance>>>;
struct __RunnersUp;
impl frame_support::traits::StorageInstance for __RunnersUp {
fn pallet_prefix() -> &'static str { "PhragmenElection" }
const STORAGE_PREFIX: &'static str = "RunnersUp";
}
#[allow(type_alias_bounds)]
type RunnersUp<T: V2ToV3> = StorageValue<__RunnersUp, Vec<SeatHolder<T::AccountId, T::Balance>>>;
struct __Voting;
impl frame_support::traits::StorageInstance for __Voting {
fn pallet_prefix() -> &'static str { "PhragmenElection" }
const STORAGE_PREFIX: &'static str = "Voting";
}
#[allow(type_alias_bounds)]
type Voting<T: V2ToV3> = StorageMap<__Voting, Twox64Concat, T::AccountId, Voter<T::AccountId, T::Balance>>;
frame_support::generate_storage_alias!(
PhragmenElection, Candidates<T: V2ToV3> => Value<Vec<(T::AccountId, T::Balance)>>
);
frame_support::generate_storage_alias!(
PhragmenElection, Members<T: V2ToV3> => Value<Vec<SeatHolder<T::AccountId, T::Balance>>>
);
frame_support::generate_storage_alias!(
PhragmenElection, RunnersUp<T: V2ToV3> => Value<Vec<SeatHolder<T::AccountId, T::Balance>>>
);
frame_support::generate_storage_alias!(
PhragmenElection, Voting<T: V2ToV3> => Map<
(Twox64Concat, T::AccountId),
Voter<T::AccountId, T::Balance>
>
);
/// Apply all of the migrations from 2_0_0 to 3_0_0.
///