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proposal.go
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proposal.go
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package types
import (
"fmt"
"strings"
"github.com/evoblockchain/evochain/libs/cosmos-sdk/x/params/types"
govtypes "github.com/evoblockchain/evochain/x/gov/types"
sdk "github.com/evoblockchain/evochain/libs/cosmos-sdk/types"
sdkparams "github.com/evoblockchain/evochain/libs/cosmos-sdk/x/params"
)
// Assert ParameterChangeProposal implements govtypes.Content at compile-time
var _ govtypes.Content = ParameterChangeProposal{}
func init() {
govtypes.RegisterProposalType(sdkparams.ProposalTypeChange)
govtypes.RegisterProposalTypeCodec(ParameterChangeProposal{}, "evoblockchain/params/ParameterChangeProposal")
}
// ParameterChangeProposal is the struct of param change proposal
type ParameterChangeProposal struct {
sdkparams.ParameterChangeProposal
Height uint64 `json:"height" yaml:"height"`
}
// NewParameterChangeProposal creates a new instance of ParameterChangeProposal
func NewParameterChangeProposal(title, description string, changes []types.ParamChange, height uint64,
) ParameterChangeProposal {
return ParameterChangeProposal{
ParameterChangeProposal: sdkparams.NewParameterChangeProposal(title, description, changes),
Height: height,
}
}
// ValidateBasic validates the parameter change proposal
func (pcp ParameterChangeProposal) ValidateBasic() sdk.Error {
if len(strings.TrimSpace(pcp.Title)) == 0 {
return govtypes.ErrInvalidProposalContent("title is required")
}
if len(pcp.Title) > govtypes.MaxTitleLength {
return govtypes.ErrInvalidProposalContent("title length is longer than max title length")
}
if len(pcp.Description) == 0 {
return govtypes.ErrInvalidProposalContent("description is required")
}
if len(pcp.Description) > govtypes.MaxDescriptionLength {
return govtypes.ErrInvalidProposalContent("description length is longer than max DggescriptionLength")
}
if pcp.ProposalType() != sdkparams.ProposalTypeChange {
return govtypes.ErrInvalidProposalType(pcp.ProposalType())
}
if len(pcp.Changes) != 1 {
return ErrInvalidParamsNum(DefaultCodespace, fmt.Sprintf("one proposal can only change one pair of parameter"))
}
return sdkparams.ValidateChanges(pcp.Changes)
}