2019-06-04 11:38:11 -07:00
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package gov
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/gov/types"
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)
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// SubmitProposal create new proposal given a content
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func (keeper Keeper) SubmitProposal(ctx sdk.Context, content Content) (Proposal, sdk.Error) {
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if !keeper.router.HasRoute(content.ProposalRoute()) {
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return Proposal{}, ErrNoProposalHandlerExists(keeper.codespace, content)
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}
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// Execute the proposal content in a cache-wrapped context to validate the
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// actual parameter changes before the proposal proceeds through the
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// governance process. State is not persisted.
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cacheCtx, _ := ctx.CacheContext()
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handler := keeper.router.GetRoute(content.ProposalRoute())
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if err := handler(cacheCtx, content); err != nil {
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return Proposal{}, ErrInvalidProposalContent(keeper.codespace, err.Result().Log)
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}
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proposalID, err := keeper.GetProposalID(ctx)
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if err != nil {
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return Proposal{}, err
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}
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submitTime := ctx.BlockHeader().Time
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depositPeriod := keeper.GetDepositParams(ctx).MaxDepositPeriod
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proposal := NewProposal(content, proposalID, submitTime, submitTime.Add(depositPeriod))
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keeper.SetProposal(ctx, proposal)
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keeper.InsertInactiveProposalQueue(ctx, proposalID, proposal.DepositEndTime)
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keeper.setProposalID(ctx, proposalID+1)
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2019-06-26 09:03:25 -07:00
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeSubmitProposal,
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sdk.NewAttribute(types.AttributeKeyProposalID, fmt.Sprintf("%d", proposalID)),
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),
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)
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2019-06-04 11:38:11 -07:00
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return proposal, nil
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}
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// GetProposal get Proposal from store by ProposalID
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func (keeper Keeper) GetProposal(ctx sdk.Context, proposalID uint64) (proposal Proposal, ok bool) {
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store := ctx.KVStore(keeper.storeKey)
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bz := store.Get(ProposalKey(proposalID))
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if bz == nil {
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return
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}
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keeper.cdc.MustUnmarshalBinaryLengthPrefixed(bz, &proposal)
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return proposal, true
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}
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// SetProposal set a proposal to store
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func (keeper Keeper) SetProposal(ctx sdk.Context, proposal Proposal) {
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store := ctx.KVStore(keeper.storeKey)
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bz := keeper.cdc.MustMarshalBinaryLengthPrefixed(proposal)
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store.Set(ProposalKey(proposal.ProposalID), bz)
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}
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// DeleteProposal deletes a proposal from store
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func (keeper Keeper) DeleteProposal(ctx sdk.Context, proposalID uint64) {
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store := ctx.KVStore(keeper.storeKey)
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proposal, ok := keeper.GetProposal(ctx, proposalID)
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if !ok {
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panic(fmt.Sprintf("couldn't find proposal with id#%d", proposalID))
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}
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keeper.RemoveFromInactiveProposalQueue(ctx, proposalID, proposal.DepositEndTime)
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keeper.RemoveFromActiveProposalQueue(ctx, proposalID, proposal.VotingEndTime)
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store.Delete(ProposalKey(proposalID))
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}
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// GetProposals returns all the proposals from store
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func (keeper Keeper) GetProposals(ctx sdk.Context) (proposals Proposals) {
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keeper.IterateProposals(ctx, func(proposal types.Proposal) bool {
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proposals = append(proposals, proposal)
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return false
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})
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return
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}
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// GetProposalsFiltered get Proposals from store by ProposalID
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// voterAddr will filter proposals by whether or not that address has voted on them
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// depositorAddr will filter proposals by whether or not that address has deposited to them
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// status will filter proposals by status
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// numLatest will fetch a specified number of the most recent proposals, or 0 for all proposals
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func (keeper Keeper) GetProposalsFiltered(ctx sdk.Context, voterAddr sdk.AccAddress, depositorAddr sdk.AccAddress, status ProposalStatus, numLatest uint64) []Proposal {
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maxProposalID, err := keeper.GetProposalID(ctx)
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if err != nil {
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return []Proposal{}
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}
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matchingProposals := []Proposal{}
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if numLatest == 0 {
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numLatest = maxProposalID
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}
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for proposalID := maxProposalID - numLatest; proposalID < maxProposalID; proposalID++ {
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if voterAddr != nil && len(voterAddr) != 0 {
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_, found := keeper.GetVote(ctx, proposalID, voterAddr)
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if !found {
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continue
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}
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}
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if depositorAddr != nil && len(depositorAddr) != 0 {
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_, found := keeper.GetDeposit(ctx, proposalID, depositorAddr)
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if !found {
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continue
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}
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}
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proposal, ok := keeper.GetProposal(ctx, proposalID)
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if !ok {
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continue
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}
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if ValidProposalStatus(status) && proposal.Status != status {
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continue
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}
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matchingProposals = append(matchingProposals, proposal)
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}
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return matchingProposals
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}
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// GetProposalID gets the highest proposal ID
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func (keeper Keeper) GetProposalID(ctx sdk.Context) (proposalID uint64, err sdk.Error) {
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store := ctx.KVStore(keeper.storeKey)
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bz := store.Get(ProposalIDKey)
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if bz == nil {
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return 0, ErrInvalidGenesis(keeper.codespace, "initial proposal ID hasn't been set")
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}
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keeper.cdc.MustUnmarshalBinaryLengthPrefixed(bz, &proposalID)
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return proposalID, nil
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}
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// Set the proposal ID
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func (keeper Keeper) setProposalID(ctx sdk.Context, proposalID uint64) {
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store := ctx.KVStore(keeper.storeKey)
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bz := keeper.cdc.MustMarshalBinaryLengthPrefixed(proposalID)
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store.Set(ProposalIDKey, bz)
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}
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func (keeper Keeper) activateVotingPeriod(ctx sdk.Context, proposal Proposal) {
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proposal.VotingStartTime = ctx.BlockHeader().Time
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votingPeriod := keeper.GetVotingParams(ctx).VotingPeriod
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proposal.VotingEndTime = proposal.VotingStartTime.Add(votingPeriod)
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proposal.Status = StatusVotingPeriod
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keeper.SetProposal(ctx, proposal)
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keeper.RemoveFromInactiveProposalQueue(ctx, proposal.ProposalID, proposal.DepositEndTime)
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keeper.InsertActiveProposalQueue(ctx, proposal.ProposalID, proposal.VotingEndTime)
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}
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