pub struct DelegationStakeMigration<T, MaxPools>(/* private fields */);
Expand description
Migrate existing pools from adapter::StakeStrategyType::Transfer
to
adapter::StakeStrategyType::Delegate
.
Note: This only migrates the pools, the members are not migrated. They can use the
permission-less Pallet::migrate_delegation()
to migrate their funds.
This migration does not break any existing pool storage item, does not need to happen in any sequence and hence can be applied unversioned on a production runtime.
Takes MaxPools
as type parameter to limit the number of pools that should be migrated in a
single block. It should be set such that migration weight does not exceed the block weight
limit. If all pools can be safely migrated, it is good to keep this number a little higher
than the actual number of pools to handle any extra pools created while the migration is
proposed, and before it is executed.
If there are pools that fail to migrate or did not fit in the bounds, the remaining pools
can be migrated via the permission-less extrinsic Call::migrate_pool_to_delegate_stake
.
Trait Implementations§
source§impl<T: Config, MaxPools: Get<u32>> OnRuntimeUpgrade for DelegationStakeMigration<T, MaxPools>
impl<T: Config, MaxPools: Get<u32>> OnRuntimeUpgrade for DelegationStakeMigration<T, MaxPools>
source§fn on_runtime_upgrade() -> Weight
fn on_runtime_upgrade() -> Weight
Hooks::on_runtime_upgrade
].§fn try_on_runtime_upgrade(checks: bool) -> Result<Weight, DispatchError>
fn try_on_runtime_upgrade(checks: bool) -> Result<Weight, DispatchError>
pre_upgrade
->
on_runtime_upgrade
-> post_upgrade
hooks for a migration. Read moreAuto Trait Implementations§
impl<T, MaxPools> Freeze for DelegationStakeMigration<T, MaxPools>
impl<T, MaxPools> RefUnwindSafe for DelegationStakeMigration<T, MaxPools>where
T: RefUnwindSafe,
MaxPools: RefUnwindSafe,
impl<T, MaxPools> Send for DelegationStakeMigration<T, MaxPools>
impl<T, MaxPools> Sync for DelegationStakeMigration<T, MaxPools>
impl<T, MaxPools> Unpin for DelegationStakeMigration<T, MaxPools>
impl<T, MaxPools> UnwindSafe for DelegationStakeMigration<T, MaxPools>where
T: UnwindSafe,
MaxPools: UnwindSafe,
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