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querier.go
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/
querier.go
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package votum
import (
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/gov"
abci "github.com/tendermint/tendermint/abci/types"
)
//querierはapplicationの状態を確認するためのメソッドを定義する
const (
QueryParams = gov.QueryParams
QueryProposals = gov.QueryProposals
QueryProposal = gov.QueryProposal
QueryDeposits = gov.QueryDeposits
QueryDeposit = gov.QueryDeposit
QueryVotes = gov.QueryVotes
QueryVote = gov.QueryVote
QueryTally = gov.QueryTally
ParamDeposit = gov.ParamDeposit
ParamVoting = gov.ParamVoting
ParamTallying = gov.ParamTallying
)
type (
QueryDepositParams = gov.QueryDepositParams
QueryProposalParams = gov.QueryProposalParams
QueryProposalsParams = gov.QueryProposalsParams
QueryVoteParams = gov.QueryVoteParams
)
type (
TallyResult = gov.TallyResult
)
var (
EmptyTallyResult = gov.EmptyTallyResult
)
func NewQuerier(keeper Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, sdk.Error) {
switch path[0] {
case QueryParams:
return queryParams(ctx, path[1:], req, keeper)
case QueryProposals:
return queryProposals(ctx, path[1:], req, keeper)
case QueryProposal:
return queryProposal(ctx, path[1:], req, keeper)
case QueryDeposits:
return queryDeposits(ctx, path[1:], req, keeper)
case QueryDeposit:
return queryDeposit(ctx, path[1:], req, keeper)
case QueryVotes:
return queryVotes(ctx, path[1:], req, keeper)
case QueryVote:
return queryVote(ctx, path[1:], req, keeper)
case QueryTally:
return queryTally(ctx, path[1:], req, keeper)
default:
return nil, sdk.ErrUnknownRequest("unknown gov query endpoint")
}
}
}
func queryParams(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
switch path[0] {
case ParamDeposit:
bz, err := codec.MarshalJSONIndent(keeper.cdc, keeper.GetDepositParams(ctx))
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
case ParamVoting:
bz, err := codec.MarshalJSONIndent(keeper.cdc, keeper.GetVotingParams(ctx))
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
case ParamTallying:
bz, err := codec.MarshalJSONIndent(keeper.cdc, keeper.GetTallyParams(ctx))
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
default:
return nil, sdk.ErrUnknownRequest(fmt.Sprintf("%s is not a valid query request path", req.Path))
}
}
// nolint: unparam
func queryProposal(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
proposal, ok := keeper.GetProposal(ctx, params.ProposalID)
if !ok {
return nil, ErrUnknownProposal(DefaultCodespace, params.ProposalID)
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, proposal)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryDeposit(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryDepositParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
deposit, _ := keeper.GetDeposit(ctx, params.ProposalID, params.Depositor)
bz, err := codec.MarshalJSONIndent(keeper.cdc, deposit)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryVote(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryVoteParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
vote, _ := keeper.GetVote(ctx, params.ProposalID, params.Voter)
bz, err := codec.MarshalJSONIndent(keeper.cdc, vote)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryDeposits(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
deposits := keeper.GetDeposits(ctx, params.ProposalID)
bz, err := codec.MarshalJSONIndent(keeper.cdc, deposits)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryTally(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
proposalID := params.ProposalID
proposal, ok := keeper.GetProposal(ctx, proposalID)
if !ok {
return nil, ErrUnknownProposal(DefaultCodespace, proposalID)
}
var tallyResult TallyResult
switch {
case proposal.Status == StatusDepositPeriod:
tallyResult = EmptyTallyResult()
case proposal.Status == StatusPassed || proposal.Status == StatusRejected:
tallyResult = proposal.FinalTallyResult
default:
// proposal is in voting period
_, _, tallyResult = tally(ctx, keeper, proposal)
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, tallyResult)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryVotes(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
votes := keeper.GetVotes(ctx, params.ProposalID)
bz, err := codec.MarshalJSONIndent(keeper.cdc, votes)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// nolint: unparam
func queryProposals(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params QueryProposalsParams
err := keeper.cdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
proposals := keeper.GetProposalsFiltered(ctx, params.Voter, params.Depositor, params.ProposalStatus, params.Limit)
bz, err := codec.MarshalJSONIndent(keeper.cdc, proposals)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}