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Include Amount in Complete Unbonding/Redelegation Events #5597

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merged 6 commits into from
Jan 31, 2020
Merged

Include Amount in Complete Unbonding/Redelegation Events #5597

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90e3833
Track and emit total unbonding amount event
alexanderbez Jan 31, 2020
e3c1100
Emit event on redelegation completion
alexanderbez Jan 31, 2020
e1c8c31
Linting
alexanderbez Jan 31, 2020
01d81ec
Linting
alexanderbez Jan 31, 2020
6ee6ead
Add changelog entry
alexanderbez Jan 31, 2020
0bc66c1
Apply suggestions from code review
fedekunze Jan 31, 2020
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23 changes: 17 additions & 6 deletions x/staking/keeper/delegation.go
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Original file line number Diff line number Diff line change
Expand Up @@ -660,14 +660,16 @@ func (k Keeper) Undelegate(
return completionTime, nil
}

// CompleteUnbonding completes the unbonding of all mature entries in the
// retrieved unbonding delegation object.
func (k Keeper) CompleteUnbonding(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) error {
// CompleteUnbondingWithAmount completes the unbonding of all mature entries in
// the retrieved unbonding delegation object and returns the total unbonding
// balance or an error upon failure.
func (k Keeper) CompleteUnbondingWithAmount(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) (sdk.Coins, error) {
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Introducing a new function instead of replacing the old as we want to get this into the next 0.37 and 0.38 point releases.

ubd, found := k.GetUnbondingDelegation(ctx, delAddr, valAddr)
if !found {
return types.ErrNoUnbondingDelegation
return nil, types.ErrNoUnbondingDelegation
}

balances := sdk.NewCoins()
ctxTime := ctx.BlockHeader().Time

// loop through all the entries and complete unbonding mature entries
Expand All @@ -682,8 +684,10 @@ func (k Keeper) CompleteUnbonding(ctx sdk.Context, delAddr sdk.AccAddress, valAd
amt := sdk.NewCoins(sdk.NewCoin(k.GetParams(ctx).BondDenom, entry.Balance))
err := k.supplyKeeper.UndelegateCoinsFromModuleToAccount(ctx, types.NotBondedPoolName, ubd.DelegatorAddress, amt)
if err != nil {
return err
return nil, err
}

balances = balances.Add(amt...)
}
}
}
Expand All @@ -695,7 +699,14 @@ func (k Keeper) CompleteUnbonding(ctx sdk.Context, delAddr sdk.AccAddress, valAd
k.SetUnbondingDelegation(ctx, ubd)
}

return nil
return balances, nil
}

// CompleteUnbonding performs the same logic as CompleteUnbondingWithAmount except
// it does not return the total unbonding amount.
func (k Keeper) CompleteUnbonding(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) error {
_, err := k.CompleteUnbondingWithAmount(ctx, delAddr, valAddr)
return err
}

// begin unbonding / redelegation; create a redelegation record
Expand Down
3 changes: 2 additions & 1 deletion x/staking/keeper/val_state_change.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,14 +31,15 @@ func (k Keeper) BlockValidatorUpdates(ctx sdk.Context) []abci.ValidatorUpdate {
// Remove all mature unbonding delegations from the ubd queue.
matureUnbonds := k.DequeueAllMatureUBDQueue(ctx, ctx.BlockHeader().Time)
for _, dvPair := range matureUnbonds {
err := k.CompleteUnbonding(ctx, dvPair.DelegatorAddress, dvPair.ValidatorAddress)
balances, err := k.CompleteUnbondingWithAmount(ctx, dvPair.DelegatorAddress, dvPair.ValidatorAddress)
if err != nil {
continue
}

ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeCompleteUnbonding,
sdk.NewAttribute(sdk.AttributeKeyAmount, balances.String()),
sdk.NewAttribute(types.AttributeKeyValidator, dvPair.ValidatorAddress.String()),
sdk.NewAttribute(types.AttributeKeyDelegator, dvPair.DelegatorAddress.String()),
),
Expand Down
25 changes: 13 additions & 12 deletions x/staking/spec/07_events.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,20 +8,21 @@ The staking module emits the following events:

## EndBlocker

| Type | Attribute Key | Attribute Value |
|-----------------------|-----------------------|-----------------------|
| complete_unbonding | validator | {validatorAddress} |
| complete_unbonding | delegator | {delegatorAddress} |
| complete_redelegation | source_validator | {srcValidatorAddress} |
| complete_redelegation | destination_validator | {dstValidatorAddress} |
| complete_redelegation | delegator | {delegatorAddress} |
| Type | Attribute Key | Attribute Value |
| --------------------- | --------------------- | ---------------------- |
| complete_unbonding | amount | {totalUnbondingAmount} |
| complete_unbonding | validator | {validatorAddress} |
| complete_unbonding | delegator | {delegatorAddress} |
| complete_redelegation | source_validator | {srcValidatorAddress} |
| complete_redelegation | destination_validator | {dstValidatorAddress} |
| complete_redelegation | delegator | {delegatorAddress} |

## Handlers

### MsgCreateValidator

| Type | Attribute Key | Attribute Value |
|------------------|---------------|--------------------|
| ---------------- | ------------- | ------------------ |
| create_validator | validator | {validatorAddress} |
| create_validator | amount | {delegationAmount} |
| message | module | staking |
Expand All @@ -31,7 +32,7 @@ The staking module emits the following events:
### MsgEditValidator

| Type | Attribute Key | Attribute Value |
|----------------|---------------------|---------------------|
| -------------- | ------------------- | ------------------- |
| edit_validator | commission_rate | {commissionRate} |
| edit_validator | min_self_delegation | {minSelfDelegation} |
| message | module | staking |
Expand All @@ -41,7 +42,7 @@ The staking module emits the following events:
### MsgDelegate

| Type | Attribute Key | Attribute Value |
|----------|---------------|--------------------|
| -------- | ------------- | ------------------ |
| delegate | validator | {validatorAddress} |
| delegate | amount | {delegationAmount} |
| message | module | staking |
Expand All @@ -51,7 +52,7 @@ The staking module emits the following events:
### MsgUndelegate

| Type | Attribute Key | Attribute Value |
|---------|---------------------|--------------------|
| ------- | ------------------- | ------------------ |
| unbond | validator | {validatorAddress} |
| unbond | amount | {unbondAmount} |
| unbond | completion_time [0] | {completionTime} |
Expand All @@ -64,7 +65,7 @@ The staking module emits the following events:
### MsgBeginRedelegate

| Type | Attribute Key | Attribute Value |
|------------|-----------------------|-----------------------|
| ---------- | --------------------- | --------------------- |
| redelegate | source_validator | {srcValidatorAddress} |
| redelegate | destination_validator | {dstValidatorAddress} |
| redelegate | amount | {unbondAmount} |
Expand Down