/
vote.go
72 lines (59 loc) · 1.84 KB
/
vote.go
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package keeper
import (
"context"
"fmt"
"cosmossdk.io/collections"
"cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/gov/types"
v1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1"
)
// AddVote adds a vote on a specific proposal
func (keeper Keeper) AddVote(ctx context.Context, proposalID uint64, voterAddr sdk.AccAddress, options v1.WeightedVoteOptions, metadata string) error {
// Check if proposal is in voting period.
inVotingPeriod, err := keeper.VotingPeriodProposals.Has(ctx, proposalID)
if err != nil {
return err
}
if !inVotingPeriod {
return errors.Wrapf(types.ErrInactiveProposal, "%d", proposalID)
}
err = keeper.assertMetadataLength(metadata)
if err != nil {
return err
}
for _, option := range options {
if !v1.ValidWeightedVoteOption(*option) {
return errors.Wrap(types.ErrInvalidVote, option.String())
}
}
vote := v1.NewVote(proposalID, voterAddr, options, metadata)
err = keeper.Votes.Set(ctx, collections.Join(proposalID, voterAddr), vote)
if err != nil {
return err
}
// called after a vote on a proposal is cast
err = keeper.Hooks().AfterProposalVote(ctx, proposalID, voterAddr)
if err != nil {
return err
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
sdkCtx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeProposalVote,
sdk.NewAttribute(types.AttributeKeyVoter, voterAddr.String()),
sdk.NewAttribute(types.AttributeKeyOption, options.String()),
sdk.NewAttribute(types.AttributeKeyProposalID, fmt.Sprintf("%d", proposalID)),
),
)
return nil
}
// deleteVotes deletes all the votes from a given proposalID.
func (keeper Keeper) deleteVotes(ctx context.Context, proposalID uint64) error {
rng := collections.NewPrefixedPairRange[uint64, sdk.AccAddress](proposalID)
err := keeper.Votes.Clear(ctx, rng)
if err != nil {
return err
}
return nil
}