Allow specify schedule dispatch origin (#6387)

* allow specify schedule dispatch origin

* fix tests

* use caller origin for scheduled

* fix tests

* line width

* check origin for cancel

* line width

* fix some issues for benchmarking

* fix doc test

* another way to constraint origin

* fix build issues

* fix cancel

* line width

* fix benchmarks

* bump version

* enable runtime upgrade

* add migration code and test

* Update frame/scheduler/src/lib.rs

Co-authored-by: Gavin Wood <github@gavwood.com>

* expose migration method

* add notes

* bump version

* remove on_runtime_upgrade

* fix test

Co-authored-by: Gavin Wood <github@gavwood.com>

substrate/frame/democracy/src/benchmarking.rs

@@ -79,6 +79,7 @@ fn add_referendum<T: Trait>(n: u32) -> Result<ReferendumIndex, &'static str> {
 		1.into(),
 		None,
 		63,
+		system::RawOrigin::Root.into(),
 		Call::enact_proposal(proposal_hash, referendum_index).into(),
 	).map_err(|_| "failed to schedule named")?;
 	Ok(referendum_index)

substrate/frame/democracy/src/lib.rs

@@ -279,7 +279,10 @@ pub trait Trait: frame_system::Trait + Sized {
 	type Slash: OnUnbalanced<NegativeImbalanceOf<Self>>;
 
 	/// The Scheduler.
-	type Scheduler: ScheduleNamed<Self::BlockNumber, Self::Proposal>;
+	type Scheduler: ScheduleNamed<Self::BlockNumber, Self::Proposal, Self::PalletsOrigin>;
+
+	/// Overarching type of all pallets origins.
+	type PalletsOrigin: From<system::RawOrigin<Self::AccountId>>;
 
 	/// The maximum number of votes for an account.
 	///
@@ -1625,6 +1628,7 @@ impl<T: Trait> Module<T> {
 					when,
 					None,
 					63,
+					system::RawOrigin::Root.into(),
 					Call::enact_proposal(status.proposal_hash, index).into(),
 				).is_err() {
 					frame_support::print("LOGIC ERROR: bake_referendum/schedule_named failed");

substrate/frame/democracy/src/tests.rs

@@ -31,7 +31,7 @@ use sp_runtime::{
 	testing::Header, Perbill,
 };
 use pallet_balances::{BalanceLock, Error as BalancesError};
-use frame_system::EnsureSignedBy;
+use frame_system::{EnsureSignedBy, EnsureRoot};
 
 mod cancellation;
 mod delegation;
@@ -123,8 +123,10 @@ parameter_types! {
 impl pallet_scheduler::Trait for Test {
 	type Event = Event;
 	type Origin = Origin;
+	type PalletsOrigin = OriginCaller;
 	type Call = Call;
 	type MaximumWeight = MaximumSchedulerWeight;
+	type ScheduleOrigin = EnsureRoot<u64>;
 }
 parameter_types! {
 	pub const ExistentialDeposit: u64 = 1;
@@ -196,6 +198,7 @@ impl super::Trait for Test {
 	type Scheduler = Scheduler;
 	type MaxVotes = MaxVotes;
 	type OperationalPreimageOrigin = EnsureSignedBy<Six, u64>;
+	type PalletsOrigin = OriginCaller;
 }
 
 pub fn new_test_ext() -> sp_io::TestExternalities {