Files
pezkuwi-subxt/substrate/frame/collective
Liam Aharon 12ce4f7d04 Runtime Upgrade ref docs and Single Block Migration example pallet (#1554)
Closes https://github.com/paritytech/polkadot-sdk-docs/issues/55

- Changes 'current storage version' terminology to less ambiguous
'in-code storage version' (suggestion by @ggwpez)
- Adds a new example pallet `pallet-example-single-block-migrations`
- Adds a new reference doc to replace
https://docs.substrate.io/maintain/runtime-upgrades/ (temporarily living
in the pallet while we wait for developer hub PR to merge)
- Adds documentation for the `storage_alias` macro
- Improves `trait Hooks` docs 
- Improves `trait GetStorageVersion` docs
- Update the suggested patterns for using `VersionedMigration`, so that
version unchecked migrations are never exported
- Prevents accidental usage of version unchecked migrations in runtimes

https://github.com/paritytech/substrate/pull/14421#discussion_r1255467895
- Unversioned migration code is kept inside `mod version_unchecked`,
versioned code is kept in `pub mod versioned`
- It is necessary to use modules to limit visibility because the inner
migration must be `pub`. See
https://github.com/rust-lang/rust/issues/30905 and

https://internals.rust-lang.org/t/lang-team-minutes-private-in-public-rules/4504/40
for more.

### todo

- [x] move to reference docs to proper place within sdk-docs (now that
https://github.com/paritytech/polkadot-sdk/pull/2102 is merged)
- [x] prdoc

---------

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Juan <juangirini@gmail.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: command-bot <>
Co-authored-by: gupnik <nikhilgupta.iitk@gmail.com>
2024-02-28 07:32:02 +00:00
..
2021-03-18 17:20:02 +01:00

Collective system: Members of a set of account IDs can make their collective feelings known through dispatched calls from one of two specialized origins.

The membership can be provided in one of two ways: either directly, using the Root-dispatchable function set_members, or indirectly, through implementing the ChangeMembers. The pallet assumes that the amount of members stays at or below MaxMembers for its weight calculations, but enforces this neither in set_members nor in change_members_sorted.

A "prime" member may be set to help determine the default vote behavior based on chain config. If PrimeDefaultVote is used, the prime vote acts as the default vote in case of any abstentions after the voting period. If MoreThanMajorityThenPrimeDefaultVote is used, then abstentations will first follow the majority of the collective voting, and then the prime member.

Voting happens through motions comprising a proposal (i.e. a dispatchable) plus a number of approvals required for it to pass and be called. Motions are open for members to vote on for a minimum period given by MotionDuration. As soon as the required number of approvals is given, the motion is closed and executed. If the number of approvals is not reached during the voting period, then close may be called by any account in order to force the end the motion explicitly. If a prime member is defined, then their vote is used instead of any abstentions and the proposal is executed if there are enough approvals counting the new votes.

If there are not, or if no prime member is set, then the motion is dropped without being executed.

License: Apache-2.0