2021-05-11 07:01:13 -07:00
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// Package v036 is used for legacy migration scripts. Actual migration scripts
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// for v036 have been removed, but the v039->v042 migration script still
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// references types from this file, so we're keeping it for now.
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2020-11-24 15:32:32 -08:00
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package v036
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import (
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"fmt"
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"strings"
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"github.com/cosmos/cosmos-sdk/codec"
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v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
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)
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const (
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// ModuleName defines the name of the module
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ModuleName = "params"
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// RouterKey defines the routing key for a ParameterChangeProposal
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RouterKey = "params"
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)
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const (
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// ProposalTypeChange defines the type for a ParameterChangeProposal
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ProposalTypeChange = "ParameterChange"
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)
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// Param module codespace constants
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const (
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DefaultCodespace = "params"
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CodeUnknownSubspace = 1
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CodeSettingParameter = 2
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CodeEmptyData = 3
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)
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// Assert ParameterChangeProposal implements v036gov.Content at compile-time
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var _ v036gov.Content = ParameterChangeProposal{}
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// ParameterChangeProposal defines a proposal which contains multiple parameter
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// changes.
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type ParameterChangeProposal struct {
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Title string `json:"title" yaml:"title"`
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Description string `json:"description" yaml:"description"`
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Changes []ParamChange `json:"changes" yaml:"changes"`
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}
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func NewParameterChangeProposal(title, description string, changes []ParamChange) ParameterChangeProposal {
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return ParameterChangeProposal{title, description, changes}
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}
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// GetTitle returns the title of a parameter change proposal.
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func (pcp ParameterChangeProposal) GetTitle() string { return pcp.Title }
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// GetDescription returns the description of a parameter change proposal.
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func (pcp ParameterChangeProposal) GetDescription() string { return pcp.Description }
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// GetDescription returns the routing key of a parameter change proposal.
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func (pcp ParameterChangeProposal) ProposalRoute() string { return RouterKey }
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// ProposalType returns the type of a parameter change proposal.
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func (pcp ParameterChangeProposal) ProposalType() string { return ProposalTypeChange }
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// ValidateBasic validates the parameter change proposal
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func (pcp ParameterChangeProposal) ValidateBasic() error {
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err := v036gov.ValidateAbstract(pcp)
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if err != nil {
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return err
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}
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return ValidateChanges(pcp.Changes)
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}
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// String implements the Stringer interface.
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func (pcp ParameterChangeProposal) String() string {
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var b strings.Builder
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b.WriteString(fmt.Sprintf(`Parameter Change Proposal:
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Title: %s
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Description: %s
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Changes:
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`, pcp.Title, pcp.Description))
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for _, pc := range pcp.Changes {
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b.WriteString(fmt.Sprintf(` Param Change:
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Subspace: %s
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Key: %s
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Subkey: %X
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Value: %X
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`, pc.Subspace, pc.Key, pc.Subkey, pc.Value))
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}
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return b.String()
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}
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// ParamChange defines a parameter change.
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type ParamChange struct {
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Subspace string `json:"subspace" yaml:"subspace"`
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Key string `json:"key" yaml:"key"`
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Subkey string `json:"subkey,omitempty" yaml:"subkey,omitempty"`
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Value string `json:"value" yaml:"value"`
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}
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func NewParamChange(subspace, key, value string) ParamChange {
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return ParamChange{subspace, key, "", value}
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}
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func NewParamChangeWithSubkey(subspace, key, subkey, value string) ParamChange {
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return ParamChange{subspace, key, subkey, value}
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}
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// String implements the Stringer interface.
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func (pc ParamChange) String() string {
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return fmt.Sprintf(`Param Change:
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Subspace: %s
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Key: %s
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Subkey: %X
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Value: %X
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`, pc.Subspace, pc.Key, pc.Subkey, pc.Value)
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}
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// ValidateChange performs basic validation checks over a set of ParamChange. It
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// returns an error if any ParamChange is invalid.
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func ValidateChanges(changes []ParamChange) error {
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if len(changes) == 0 {
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return ErrEmptyChanges(DefaultCodespace)
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}
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for _, pc := range changes {
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if len(pc.Subspace) == 0 {
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return ErrEmptySubspace(DefaultCodespace)
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}
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if len(pc.Key) == 0 {
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return ErrEmptyKey(DefaultCodespace)
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}
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if len(pc.Value) == 0 {
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return ErrEmptyValue(DefaultCodespace)
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}
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}
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return nil
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}
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// ErrUnknownSubspace returns an unknown subspace error.
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func ErrUnknownSubspace(codespace string, space string) error {
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return fmt.Errorf("unknown subspace %s", space)
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}
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// ErrSettingParameter returns an error for failing to set a parameter.
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func ErrSettingParameter(codespace string, key, subkey, value, msg string) error {
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return fmt.Errorf("error setting parameter %s on %s (%s): %s", value, key, subkey, msg)
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}
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// ErrEmptyChanges returns an error for empty parameter changes.
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func ErrEmptyChanges(codespace string) error {
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return fmt.Errorf("submitted parameter changes are empty")
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}
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// ErrEmptySubspace returns an error for an empty subspace.
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func ErrEmptySubspace(codespace string) error {
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return fmt.Errorf("parameter subspace is empty")
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}
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// ErrEmptyKey returns an error for when an empty key is given.
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func ErrEmptyKey(codespace string) error {
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return fmt.Errorf("parameter key is empty")
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}
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// ErrEmptyValue returns an error for when an empty key is given.
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func ErrEmptyValue(codespace string) error {
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return fmt.Errorf("parameter value is empty")
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}
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func RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
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cdc.RegisterConcrete(ParameterChangeProposal{}, "cosmos-sdk/ParameterChangeProposal", nil)
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}
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