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keeper.go
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keeper.go
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package keeper
import (
"fmt"
"github.com/tendermint/tendermint/libs/log"
"github.com/CudoVentures/cudos-node/x/cudoMint/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
// this line is used by starport scaffolding # ibc/keeper/import
)
type (
Keeper struct {
cdc codec.Codec
storeKey sdk.StoreKey
memKey sdk.StoreKey
bankKeeper types.BankKeeper
feeCollectorName string
paramSpace paramtypes.Subspace
// this line is used by starport scaffolding # ibc/keeper/attribute
}
)
func NewKeeper(
cdc codec.Codec,
storeKey,
memKey sdk.StoreKey,
bk types.BankKeeper,
ak types.AccountKeeper,
paramSpace paramtypes.Subspace,
feeCollectorName string,
// this line is used by starport scaffolding # ibc/keeper/parameter
) *Keeper {
// ensure mint module account is set
if addr := ak.GetModuleAddress(types.ModuleName); addr == nil {
panic("the mint module account has not been set")
}
if !paramSpace.HasKeyTable() {
paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
}
return &Keeper{
cdc: cdc,
storeKey: storeKey,
memKey: memKey,
bankKeeper: bk,
paramSpace: paramSpace,
feeCollectorName: feeCollectorName,
// this line is used by starport scaffolding # ibc/keeper/return
}
}
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
// GetMinter get the minter
func (k Keeper) GetMinter(ctx sdk.Context) (minter types.Minter) {
store := ctx.KVStore(k.storeKey)
b := store.Get(types.MinterKey)
if b == nil {
panic("stored minter should not have been nil")
}
k.cdc.MustUnmarshal(b, &minter)
return minter
}
// SetMinter set the minter
func (k Keeper) SetMinter(ctx sdk.Context, minter types.Minter) {
store := ctx.KVStore(k.storeKey)
b := k.cdc.MustMarshal(&minter)
store.Set(types.MinterKey, b)
}
// GetParams returns the total set of minting parameters.
func (k Keeper) GetParams(ctx sdk.Context) (params types.Params) {
k.paramSpace.GetParamSet(ctx, ¶ms)
return params
}
// SetParams sets the total set of minting parameters.
func (k Keeper) SetParams(ctx sdk.Context, params types.Params) {
k.paramSpace.SetParamSet(ctx, ¶ms)
}
// MintCoins implements an alias call to the underlying supply keeper's
// MintCoins to be used in BeginBlocker.
func (k Keeper) MintCoins(ctx sdk.Context, newCoins sdk.Coins) error {
if newCoins.Empty() {
// skip as no coins need to be minted
return nil
}
return k.bankKeeper.MintCoins(ctx, types.ModuleName, newCoins)
}
// AddCollectedFees implements an alias call to the underlying supply keeper's
// AddCollectedFees to be used in BeginBlocker.
func (k Keeper) AddCollectedFees(ctx sdk.Context, fees sdk.Coins) error {
return k.bankKeeper.SendCoinsFromModuleToModule(ctx, types.ModuleName, k.feeCollectorName, fees)
}